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Marine Weather and Tide Forecast for Walnut Creek, CA

April 23, 2025 3:47 AM PDT (10:47 UTC) Change Location
Sunrise 6:19 AM   Sunset 7:53 PM
Moonrise 3:05 AM   Moonset 2:18 PM 
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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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NOTE: Zones were updated 3/20/2025
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 239 Am Pdt Wed Apr 23 2025

Today - SW wind 5 to 10 kt, rising to 10 to 15 kt late. Waves around 2 ft or less.

Tonight - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.

Thu - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.

Thu night - W wind 10 to 15 kt. Waves around 2 ft or less.

Fri - SW wind 10 to 15 kt. Waves around 2 ft or less. A slight chance of rain in the afternoon.

Fri night - W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. A chance of rain.

Sat - W wind 5 to 10 kt. Waves around 2 ft or less.

Sat night - W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.

Sun - W wind 5 to 10 kt. Waves around 2 ft or less.

Sun night - W wind 5 to 10 kt. Waves around 2 ft or less.
PZZ500 239 Am Pdt Wed Apr 23 2025

Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
breezy to gusty winds continue across the northern outer waters through Wednesday as a weak upper level trough passes through the region. Otherwise a fresh to strong breeze across the rest of the waters through the middle of the week. Light rain chances increase by Friday over the northern waters.

7 Day Forecast for Marine Location Near Walnut Creek, CA
   
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NEW! Add second zone forecast

Tide / Current for Suisun Point, Carquinez Strait, California
  
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Suisun Point
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Wed -- 04:05 AM PDT     Moonrise
Wed -- 04:53 AM PDT     1.38 feet Low Tide
Wed -- 06:21 AM PDT     Sunrise
Wed -- 10:31 AM PDT     4.24 feet High Tide
Wed -- 03:18 PM PDT     Moonset
Wed -- 05:18 PM PDT     -0.06 feet Low Tide
Wed -- 07:52 PM PDT     Sunset
Wed -- 11:50 PM PDT     4.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Suisun Point, Carquinez Strait, California does not exist in database. Press Edit above and select a valid nearby location.

Suisun Point, Carquinez Strait, California, Tide feet
12
am
4.1
1
am
3.5
2
am
2.7
3
am
2
4
am
1.5
5
am
1.4
6
am
1.6
7
am
2.3
8
am
3.1
9
am
3.8
10
am
4.2
11
am
4.2
12
pm
3.8
1
pm
2.9
2
pm
1.9
3
pm
1
4
pm
0.3
5
pm
-0
6
pm
0.1
7
pm
0.6
8
pm
1.6
9
pm
2.7
10
pm
3.7
11
pm
4.3

Tide / Current for Stake Point .9 Mi NNW, Suisun Bay, California Current
  
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Stake Point .9 Mi NNW
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Wed -- 01:42 AM PDT     -0.00 knots Slack
Wed -- 04:05 AM PDT     Moonrise
Wed -- 04:24 AM PDT     -0.55 knots Max Ebb
Wed -- 06:20 AM PDT     Sunrise
Wed -- 06:56 AM PDT     0.00 knots Slack
Wed -- 10:18 AM PDT     0.73 knots Max Flood
Wed -- 01:00 PM PDT     -0.00 knots Slack
Wed -- 03:17 PM PDT     Moonset
Wed -- 04:07 PM PDT     -0.79 knots Max Ebb
Wed -- 07:22 PM PDT     0.00 knots Slack
Wed -- 07:51 PM PDT     Sunset
Wed -- 11:10 PM PDT     0.93 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Stake Point .9 Mi NNW, Suisun Bay, California Current does not exist in database. Press Edit above and select a valid nearby location.

Stake Point .9 Mi NNW, Suisun Bay, California Current, knots
12
am
0.7
1
am
0.3
2
am
-0.1
3
am
-0.4
4
am
-0.5
5
am
-0.5
6
am
-0.3
7
am
0
8
am
0.4
9
am
0.6
10
am
0.7
11
am
0.7
12
pm
0.4
1
pm
-0
2
pm
-0.4
3
pm
-0.7
4
pm
-0.8
5
pm
-0.7
6
pm
-0.5
7
pm
-0.2
8
pm
0.3
9
pm
0.6
10
pm
0.8
11
pm
0.9

Area Discussion for San Francisco/Monterey Bay Area, CA
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NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 230724 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1224 AM PDT Wed Apr 23 2025

New SYNOPSIS, SHORT TERM, LONG TERM

SYNOPSIS
Issued at 1224 AM PDT Wed Apr 23 2025

A pattern change brings cooler conditions today with the cooling trend continuing into the weekend. Patchy drizzle and fog are possible within the marine layer clouds. Light rain and drizzle are possible throughout the region Friday and Saturday.

SHORT TERM
(Today and tonight)
Issued at 1224 AM PDT Wed Apr 23 2025

A shortwave trough is building over the West Coast, resulting in cooler temperatures and a deeper marine layer in the region.
Satellite imagery shows stratus developing along the coast from Point Reyes southward, moving inland into the Bayshore East Bay, across the Monterey Bay region, and down through the Salinas Valley and across the Gilroy-Hollister region. The enhanced marine layer will enable the stratus to develop further inland through the night, before the inland stratus gradually dissipates through the morning, while some coastal regions remain socked in through the day. Breezy onshore flow will develop this afternoon, with gusts reaching 20-25 mph through the gaps and passes. High temperatures today will top out in the upper 60s to the lower 70s in the inland valleys, and the middle 50s to lower 60s along the Bays and Pacific coast.

LONG TERM
(Thursday through Tuesday)
Issued at 1224 AM PDT Wed Apr 23 2025

Thursday is shaping up to be pretty similar to today, with an uptick in wind gusts (reaching 25-30 mph through the gaps and passes) and a downtick in inland high temperatures (middle to upper 60s).

Friday and Saturday should see the arrival of a deepening upper level trough coming through the eastern Pacific. Confidence has continued to increase in the stronger model solutions and a potential cutoff low coming into California. Combined with a southward trend in the forecast track, the trend has resulted in an increase in PoPs throughout the region, especially south of the Golden Gate. The current forecast has PoPs rising as high as 40-50% Friday night and Saturday morning. Rainfall totals remain low; although the exact spatial extent of the rainfall is quite uncertain, we're not expecting totals above a tenth of an inch in the valleys and a quarter of an inch in the higher elevations.
Something else to keep an eye on: we're starting to see some indications of thunderstorm potential on Friday evening into Saturday morning, with NBM model output putting odds of thunderstorm activity as high as 10-15%. We'll monitor how the thunderstorm risk evolves over the next couple of days. As for high temperatures on Friday and Saturday, expect anywhere from the middle 50s to the middle 60s in the lower elevations, and the middle 40s to the lower 50s in the higher elevations.

Ridging should return after the trough moves out, with daytime highs rebounding to near the seasonal average in the early part of next week.

AVIATION
(06Z TAFS)
Issued at 931 PM PDT Tue Apr 22 2025

Forecast in good shape going into tonight with MVFR/IFR cigs building in nicely along the SF Peninsula and Monterey Bay areas.
High confidence in cigs filling in around the SF Bay later tonight through sunrise Wednesday. Expecting cigs to lift a bit by the late morning hours as a trough expands the marine layer, and may end up toeing the line between MVFR/VFR before mixing out to CLR skies by the afternoon. Early return for stratus Wednesday night.

Vicinity of SFO...Breezy onshore winds through the night tonight with marine stratus filling in by the early morning hours.
Relatively high confidence forecast for the hours after sunrise, then confidence becomes a bit lower as an upper trough moves through and lifts cigs a bit by late morning.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals.. MVFR/IFR cigs through the nighttime hours. Hi res guidance depicts the formation of an "Otter Eddy" in the Monterey Bay, which may bring about brief periods of LIFR cigs and reduced vis for coastal areas along the southern Monterey Bay around sunrise.

MARINE
(Tonight through next Monday)
Issued at 908 PM PDT Tue Apr 22 2025

Strong, near gale winds will continue across the northern outer waters through Wednesday as a weak upper level trough passes through the region. Otherwise a fresh to strong breeze across the rest of the waters through the middle of the week. Light rain chances increase by Friday over the northern waters.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM.

Small Craft Advisory until 9 AM PDT this morning for Pt Reyes to Pigeon Pt 0-10 nm.

Small Craft Advisory from 9 AM this morning to 3 AM PDT Thursday for Pt Pinos to Pt Piedras Blancas 0-10 nm.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 10 mi47 minSSW 6G9.9 53°F 62°F29.8747°F
UPBC1 10 mi47 minSW 8.9G12
PCOC1 - 9415144 - Port Chicago, CA 11 mi47 minSSW 8G13 51°F 29.86
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi47 minWSW 8G11 54°F 29.85
LNDC1 14 mi47 minSW 6G7 52°F 29.92
AAMC1 - 9414750 - Alameda, CA 16 mi47 minSW 7G11 52°F 63°F29.92
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 16 mi47 minSSW 12G15 52°F 29.87
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi47 minWSW 2.9G9.9 51°F 29.92
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 16 mi47 minSW 12G18
OBXC1 17 mi47 min 52°F 49°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 17 mi47 minSSW 8G11 53°F 29.91
PXOC1 - 9414311 - San Francisco (Pier 1), CA 19 mi47 minSW 4.1G9.9 51°F 29.87
RCMC1 - 9414863 - Richmond, CA 19 mi47 minS 1G2.9 52°F 56°F29.88
PXSC1 20 mi47 min 52°F 49°F
SFXC1 - San Francisco Bay Reserve, CA 21 mi62 minSW 5.1 50°F 29.8645°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 21 mi123 minESE 1.9 50°F 29.8945°F
FTPC1 - 9414290 - San Francisco, CA 23 mi47 minSW 9.9G19 51°F 29.90
RTYC1 - 9414523 - Redwood City, CA 28 mi47 minWNW 6G13 52°F 67°F29.93
46237 - San Francisco Bar, CA (142) 32 mi47 min 51°F 55°F7 ft


Wind History for Union Pacific Rail Road Bridge (UPRR), CA
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Airport Reports
   
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Weather Map
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GEOS Local Image of Central West Coast  
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Sacramento, CA,





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