Sunday, July5, 2020
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Marine Weather and Tides
Santa Monica, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:47AMSunset 8:10PM Sunday July 5, 2020 10:48 AM PDT (17:48 UTC) Moonrise 9:00PMMoonset 6:08AM Illumination 100% Phase: Full Moon; Moon at 15 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 902 Am Pdt Sun Jul 5 2020
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Tonight..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft at 8 seconds and S 3 ft at 15 seconds. Patchy dense fog with vsby 1 nm or less after midnight.
Mon..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 8 seconds and S 3 ft at 15 seconds. Patchy dense fog with vsby 1 nm or less in the morning.
Mon night..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 9 seconds. Patchy dense fog with vsby 1 nm or less after midnight.
Tue..SE winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 8 seconds. Patchy dense fog with vsby 1 nm or less in the morning.
Tue night..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 4 ft at 9 seconds. Patchy fog.
Wed..SW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
Thu..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
PZZ600 902 Am Pdt Sun Jul 5 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z, or 8 am pdt, a 1028 mb high pressure center was located 900 nm west of eureka and a 1003 mb thermal low was centered over southern nevada. There will be an extended period of strong nw winds across the coastal waters through at least Tue night, along with large steep seas.


7 Day Forecast for Marine Location Near Santa Monica, CA
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location: 34.01, -118.52     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 051526 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 826 AM PDT Sun Jul 5 2020

SYNOPSIS. 05/316 AM.

A warming trend will continue through Monday with very warm temperatures expected inland, with highs 4-10 degrees above normal on Sunday, before gradual cooling takes place through midweek. Marine layer clouds will be limited to a few coastal areas through Tuesday, with more widespread low clouds for the coast and some coastal valleys by mid week. Gusty Sundowner winds are expected tonight and Monday night. Potential for triple digit heat across interior locations late this week into next weekend.

SHORT TERM (TDY-TUE). 05/826 AM.

***UPDATE***

Overall, a quiet Sunday morning across the forecast district. Latest satellite and surface observations indicated sunny skies this morning except for some patchy stratus/fog over southeastern LA county and the coastal waters. Checking morning sounding data indicates marine inversion currently on the deck across the Central Coast and near 800 feet deep south of Point Conception.

Forecast-wise, main concern in the immediate short term will be the winds. With moderate onshore gradients today, gusty southwesterly winds will impact the mountains and deserts, but should remain below advisory levels. Late this afternoon and this evening, focus turns to Sundowners across southern SBA county. Based on forecast gradients, winds will flirt with advisory levels across the SBA South Coast west of Goleta this evening. So, will take closer look at full 12Z model suite to determine if any advisories will be needed. With the expected northerly winds and rather dry conditions (due to the very shallow marine inversion), there will be elevated fire weather concerns this afternoon and tonight across interior sections as well as SBA South Coast.

Otherwise, it looks like a rather warm day for the area with coastal valleys well into the 90s (and possibly pushing 100 degrees in some areas) and low 100s across the deserts and interior valleys.

Forecast in the immediate short term looks good. So, no significant updates are planned at this time.

***From Previous Discussion***

Latest GOES-West Fog Product Imagery indicated clear skies across the forecast area, except right along the shore of the Santa Monica Bay to the Palos Verdes Peninsula, and should move into Long Beach as well. The latest AMDAR Sounding near LAX showed the marine layer to be only 400 ft deep. If stratus does make it into the L.A. County Coast expect patchy dense fog with visibility 1/4 mile or less through the early morning hours, otherwise skies will be sunny today.

An elongated 591 DM High will center over Southern California extending well out over the Ern Pac and east into New Mexico. The combination of the strong high pressure aloft and weakening onshore flow will continue to bring triple digit heat across SLO interior Valleys to around 103, with the Antelope Valley, and possibly a few L.A. County Valley locations reaching 100 this afternoon. Overall, there will be little change to the forecast except for a few degrees of warming overall.

Gusty sundowner winds are expected to develop across the western portions of the SBA south coast and foothills during the late afternoon and evening hours today and Monday. The strongest winds are expected to be focused from Gaviota to San Marcos Pass where wind gusts of 35 to 45 mph can be expected. The forecasted Santa Barbara-Santa Maria gradients on Sunday evening and Monday evening are expected to peak around -4 mb. The sundowner winds are also expected to bring additional warming and drying to foothills areas, with warmest foothill areas will climb to around 90 degrees and slightly lower across portions of the SBA South Coast.

By Monday, the upper ridge begins to breakdown as a persistent upper level trough draped across the PAC NW into northern Cal starts to sag south a bit. The main impact will be lowering H5 heights and a stronger onshore gradient that will allow for a 2-6 degree cooling trend and a better chance for night through morning low clouds and patchy dense fog to extend farther into the L.A. Basin,and across portions of the Central Coast. Other coastal areas should remain mostly clear, but patchy dense fog can't be ruled out for the Ventura County Coast. Northerly wnds should be strong enough to keep low clouds south of SBA County. An additional 2-5 degrees of cooling is expected on Tuesday as the upper trough deepens slightly allowing for the marine layer to deepen and cause the stratus to become more widespread across most coastal areas, and should reach the Santa Ynez Valley and possibly the San Gabriel Valley Tue morning. Overall, skies will remain mostly sunny after night through morning low clouds scour out.

LONG TERM (WED-SAT). 05/314 AM.

The EC and GFS continue to be in good agreement with large scale features through the extended period. Wednesday should be the coolest day next week as the onshore flow peaks with the LAX-DAG advertising a +8 millibar gradient. The upper trough will begin to get nudged north as the beginning of an elongated upper ridge expands north out of southern AZ/NM. Highs will be around normal by Wednesday as highs will range from the mid 80s to lower 90s for valleys, and mid 90s for the Antelope Valley, with mild conditions along coastal areas.

By Thursday, upper level ridging (595 DM) develops over AZ/NM then quickly expands and strengthens to a very strong 600 DM high and expands from the Eastern PAC over SoCal to much of the Great Plains while a PAC NW Trough moves little through the end of the week. Expect a warming trend beginning Thursday and continuing to heat up through the the weekend. For now have trended high temps up with the Antelope Valley likely reaching 100-105 degrees Thu-Sat. For now have valleys in the upper 90s but would not be surprised for warmest valleys to also reach triple digits by Friday into the weekend.

The marine layer will become quite shallow due to the high pressure aloft and if stratus develops along the coast, there is a good chance it will be dense. Not expecting any low clouds and fog to reach valleys.

Lastly, the location of the upper level high could be conducive to usher in some mid level moisture into SE California by next weekend. It's still too far out to jump on this, but the GFS is picking up on some mid level moisture moving towards AZ and SE Cal. If monsoonal moisture does get picked up by the models as we draw closer to next weekend, high temps will likely come down a bit, but with higher humidity will still make it feel uncomfortably hot.

AVIATION. 05/1302Z.

At 12Z at KLAX . The marine layer was 800 ft deep. The top of the inversion was around 2800 ft with a temperature of 26 Celsius.

Low clouds were patchy in nature in coastal areas south of Pt. Conception, mainly right near the beaches. Conds were mostly IFR to LIFR. Skies will be mostly clear by mid morning.

Gusty southwest to west winds will affect the L.A. County mountains and the Antelope Valley this afternoon and evening.

Gusty NW-N winds will affect portions of the Santa Ynez Range and adjacent south coast of SBA County late this afternoon into tonight.

Expect low clouds to be confined to coastal sections of L.A. County tonight, with generally IFR/LIFR conds expected. There is a chance of cigs on the Central Coast with LIFR or VLIFR conds.

KLAX . Moderate confidence in the 12Z TAF. There is a 30% chance that IFR conds will linger through 17Z this morning. There is a 30% chance that skies will remain clear tonight/Mon morning.

KBUR . High confidence in the 12Z TAF with VFR conds thru the pd.

MARINE. 05/736 AM.

For the northern and central outer waters zones (PZZ670/673), Gale force winds. mainly this afternoon thru Mon night. There is a 25% chance that Gales will continue thru Tue night, but if not, Small Craft Advisory (SCA) level winds and seas will. SCA level winds are likely Tue night/Wed. There is a 40% chance of SCA level winds Thu.

For the southern outer waters zone (PZZ676), SCA level winds and seas will develop today, then continue thru Tue night, There is a 30% chance of Gale force winds Mon/Mon night, northwest of San Nicolas Island. There is a 40% chance of SCA level winds Wed thru Thu.

For the inner waters north of Pt. Sal, SCA level winds will develop this afternoon and continue into tonight. There will be SCA level winds during the afternoon and evening hours Mon and Tue. Otherwise, seas will be at or above SCA thresholds later today thru Tue evening. There is a 30% chance of SCA conds Wed thru Thu.

For the inner waters south of Pt. Conception, winds and seas will remain below SCA levels thru Thu. The exception will be in western Santa Barbara Channel, with SCA level winds likely during the afternoon thru late night hours today and Mon. There is a 35% chance of SCA conds in western portions of the SBA Channel during the late afternoon thru late evening hours Tue thru Thu.

Patchy dense fog, with visibility 1NM or less, will affect the waters south of Pt Conception in the night/morning hours thru Tue.

There will be dangerous seas across much of the waters thru Tue. There will be a combination of a long period south swell creating large waves nearshore and hazards to drifting boaters, and a steep large short period swell.

BEACHES. 05/739 AM.

High surf and strong rip currents will continue through early Monday on Southern California beaches. A long-period south swell will peak today at 3 to 4 feet at 17 seconds. High surf of 5 to 8 feet will occur on exposed south and southwest facing beaches of Los Angeles and Ventura Counties, and 8 to 11 feet on exposed Central Coast beaches. The Santa Barbara south coast will have minimal affects from this swell due to blockage from the Channel Islands, but local sets to 5 feet and hazardous rip currents will occur near Rincon Point.

The high tides this evening will be quite high, between 6.5 and 7 feet. High tides will be between 10 and 1030 PM PDT this evening. Within a couple of hours on either side of high tide, there will likely be minor coastal flooding of beaches and harbor walkways.

Pay attention to beach closures this weekend. In addition to large surf and dangerous rip currents, dangerous breaking waves from long period waves, have a history of ocean rescues and drownings. Stay off the rocks and jetties near the water's edge.

FIRE WEATHER. 05/601 AM.

Hot and dry conditions are expected across interior areas today and Monday, where humidities in the single digits and teens will be common. The driest air will be focused across the Antelope Valley, mountains, and interior valleys of SLO County where humidities as low as 5 percent can be expected. In addition, locally gusty southwest to northwest winds (gusting between 25 and 40 mph) will continue across interior sections, strongest in the Antelope Valley. Warm and dry conditions are also expected to linger through the nighttime hours in the foothills and mountains. The combination of hot temperatures, low humidities, locally gusty winds, and drying fuels will bring elevated fire weather conditions to interior areas today through Monday.

Elevated fire weather conditions are also expected today into Monday across the western portions of the Santa Barbara south coast and adjacent foothills, mainly late afternoon and evening hours. These areas can expect gusty sundowner winds, mainly from Gaviota to San Marcos Pass where wind gusts of 35 to 45 mph will be common. The sundowner wind conditions will also bring warm and dry conditions, with humidities lowering into the teens and 20's across foothill areas, while temperatures climb to around 90 degrees.

LOX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory in effect until noon PDT Monday for zones 34-35-40-41-87. (See LAXCFWLOX). PZ . Small Craft Advisory in effect from 3 PM this afternoon to 3 AM PDT Wednesday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect from 3 PM this afternoon to 3 AM PDT Monday for zone 650. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT Tuesday for zones 670-673. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Wednesday for zone 676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (TUE-SAT).

No significant hazards expected.



PUBLIC . Kaplan AVIATION . DB MARINE . DB/Kj BEACHES . DB/Kj FIRE . Gomberg/Kaplan SYNOPSIS . Kaplan

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 1 mi54 min WSW 4.1 G 5.1 68°F 68°F1014.3 hPa
46221 - Santa Monica Bay, CA (028) 12 mi25 min 67°F4 ft
BAXC1 22 mi102 min ESE 4.1 G 6
PXAC1 22 mi102 min SE 5.1 G 6
PSXC1 23 mi54 min S 4.1 G 6
OHBC1 - 9410660 - Los Angeles, CA 24 mi54 min 65°F1014.5 hPa
PFDC1 24 mi108 min SE 1 G 2.9
PFXC1 24 mi54 min SSE 5.1 G 6
AGXC1 25 mi102 min SE 2.9 G 2.9
PRJC1 26 mi54 min S 4.1 G 5.1
46256 27 mi52 min 64°F4 ft
46222 - San Pedro, CA (092) 29 mi28 min 69°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 33 mi28 min SSE 5.8 G 5.8 66°F 70°F1013.8 hPa63°F
46253 35 mi82 min 67°F3 ft

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Monica, Santa Monica Municipal Airport, CA4 mi57 minN 01.75 miFair with Haze77°F57°F50%1013.6 hPa
Los Angeles, Los Angeles International Airport, CA8 mi55 minN 03.00 miA Few Clouds with Haze77°F57°F50%1013.5 hPa
Hawthorne, Hawthorne Municipal Airport, CA11 mi55 minESE 32.00 miFair with Haze77°F57°F50%1013.6 hPa
Los Angeles / USC Campus Downtown, CA13 mi56 minESE 33.00 miFair with Haze80°F55°F44%1013 hPa
Van Nuys, Van Nuys Airport, CA14 mi57 minVar 56.00 miFair with Haze83°F48°F30%1012.8 hPa
Burbank - Bob Hope Airport, CA16 mi55 minESE 85.00 miFair with Haze78°F48°F35%1012.5 hPa
Torrance, Zamperini Field Airport, CA18 mi61 minN 04.00 miA Few Clouds with Haze75°F62°F65%1013.9 hPa
Los Angeles, Whiteman Airport, CA18 mi2 hrsN 010.00 miClear81°F44°F28%1015.6 hPa
Long Beach, Long Beach Airport, CA23 mi55 minESE 38.00 miFair77°F57°F52%1013.6 hPa

Link to 5 minute data for KSMO

Wind History from SMO (wind in knots)
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1 day agoSW7SW7W8W8W8W9SW9SW8W6SW4CalmSE4SE3E3CalmCalmCalmCalmCalmCalmCalmSW3S4SW5
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Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Sun -- 04:38 AM PDT     -1.27 feet Low Tide
Sun -- 05:48 AM PDT     Sunrise
Sun -- 06:08 AM PDT     Moonset
Sun -- 11:13 AM PDT     3.94 feet High Tide
Sun -- 03:43 PM PDT     2.25 feet Low Tide
Sun -- 08:08 PM PDT     Sunset
Sun -- 09:00 PM PDT     Moonrise
Sun -- 09:59 PM PDT     6.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.42.71-0.3-1.1-1.2-0.70.41.62.83.63.93.83.32.82.42.32.63.44.45.56.26.56.2

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Sun -- 04:48 AM PDT     -1.21 feet Low Tide
Sun -- 05:48 AM PDT     Sunrise
Sun -- 06:08 AM PDT     Moonset
Sun -- 11:23 AM PDT     3.84 feet High Tide
Sun -- 03:55 PM PDT     2.17 feet Low Tide
Sun -- 08:08 PM PDT     Sunset
Sun -- 08:59 PM PDT     Moonrise
Sun -- 10:09 PM PDT     6.33 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.52.91.2-0.1-1-1.2-0.80.21.42.53.43.83.83.42.82.32.22.43.14.15.15.96.36.1

Weather Map
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GEOS Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Los Angeles/Oxnard, CA (13,3,4,5)
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Ground Weather Radar Station Santa Ana Mtns, CA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.