Marine Weather and Tide Forecast for Los Osos, CA
April 30, 2025 3:09 AM PDT (10:09 UTC)
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![]() | Sunrise 6:10 AM Sunset 7:49 PM Moonrise 7:16 AM Moonset 10:54 PM |
PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 256 Am Pdt Wed Apr 30 2025
.small craft advisory in effect until 9 am pdt this morning - .
Today - NW wind 10 to 20 kt. Seas 7 to 8 ft. Wave detail: nw 7 ft at 8 seconds and S 3 ft at 15 seconds.
Tonight - NW wind 10 to 20 kt, becoming 5 to 10 kt after midnight. Seas 6 to 7 ft. Wave detail: nw 6 ft at 9 seconds and S 3 ft at 15 seconds.
Thu - N wind 5 to 10 kt, becoming nw 10 to 15 kt in the afternoon. Seas 5 to 6 ft. Wave detail: nw 6 ft at 9 seconds and S 3 ft at 14 seconds.
Thu night - NW wind 10 to 20 kt. Seas 5 to 6 ft. Wave detail: nw 5 ft at 9 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
Fri - NW wind 15 to 20 kt, becoming 20 to 25 kt in the afternoon. Seas 5 to 7 ft. Wave detail: nw 6 ft at 8 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Fri night - NW wind 20 to 25 kt. Seas 7 ft. Wave detail: nw 7 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
Sat - NW wind 25 to 30 kt. Seas 7 ft, building to 9 ft. Wave detail: nw 9 ft at 8 seconds and sw 2 ft at 15 seconds. Patchy fog in the morning. A slight chance of rain in the afternoon.
Sat night - NW wind 25 to 35 kt. Seas 10 to 12 ft. Wave detail: nw 12 ft at 9 seconds and sw 2 ft at 16 seconds. Patchy fog after midnight.
Sun - NW wind 25 to 35 kt. Seas 13 to 16 ft. Wave detail: nw 15 ft at 10 seconds and sw 2 ft at 17 seconds. Patchy fog in the morning.
Sun night - NW wind 20 to 30 kt, becoming 15 to 25 kt after midnight. Seas 13 to 15 ft. Wave detail: nw 15 ft at 11 seconds and sw 2 ft at 16 seconds.
PZZ600 256 Am Pdt Wed Apr 30 2025
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - At 09z, or 2 am pdt, a 1030 mb high was located 800 nm W of san francisco, ca. A 1009 mb low was centered in near las vegas.
7 Day Forecast for Marine Location Near Los Osos, CA

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Morro Bay Click for Map Wed -- 12:22 AM PDT 5.42 feet High Tide Wed -- 06:12 AM PDT Sunrise Wed -- 08:15 AM PDT Moonrise Wed -- 08:17 AM PDT -0.61 feet Low Tide Wed -- 02:53 PM PDT 2.70 feet High Tide Wed -- 06:30 PM PDT 2.28 feet Low Tide Wed -- 07:49 PM PDT Sunset Wed -- 11:54 PM PDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |   |
Morro Bay, California, Tide feet
12 am |
5.4 |
1 am |
5.3 |
2 am |
4.8 |
3 am |
3.8 |
4 am |
2.7 |
5 am |
1.5 |
6 am |
0.5 |
7 am |
-0.2 |
8 am |
-0.6 |
9 am |
-0.5 |
10 am |
0.1 |
11 am |
0.8 |
12 pm |
1.6 |
1 pm |
2.2 |
2 pm |
2.6 |
3 pm |
2.7 |
4 pm |
2.6 |
5 pm |
2.4 |
6 pm |
2.3 |
7 pm |
2.3 |
8 pm |
2.5 |
9 pm |
2.9 |
10 pm |
3.6 |
11 pm |
4.3 |
Port San Luis Click for Map Wed -- 06:12 AM PDT Sunrise Wed -- 07:06 AM PDT -1.59 feet Low Tide Wed -- 08:16 AM PDT Moonrise Wed -- 02:06 PM PDT 3.49 feet High Tide Wed -- 06:04 PM PDT 2.52 feet Low Tide Wed -- 07:48 PM PDT Sunset Wed -- 11:53 PM PDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |   |
Port San Luis, California, Tide feet
12 am |
6.3 |
1 am |
5.7 |
2 am |
4.5 |
3 am |
2.9 |
4 am |
1.3 |
5 am |
-0.2 |
6 am |
-1.2 |
7 am |
-1.6 |
8 am |
-1.4 |
9 am |
-0.6 |
10 am |
0.5 |
11 am |
1.6 |
12 pm |
2.6 |
1 pm |
3.3 |
2 pm |
3.5 |
3 pm |
3.4 |
4 pm |
3 |
5 pm |
2.7 |
6 pm |
2.5 |
7 pm |
2.7 |
8 pm |
3.2 |
9 pm |
3.9 |
10 pm |
4.8 |
11 pm |
5.5 |
Area Discussion for Los Angeles/Oxnard, CA
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FXUS66 KLOX 300651 AFDLOX
Area Forecast Discussion...UPDATED National Weather Service Los Angeles/Oxnard CA 1151 PM PDT Tue Apr 29 2025
SYNOPSIS
29/906 PM.
Night through morning low clouds and fog coverage will continue through Friday. Much cooler and cloudy conditions with showers and gusty winds are expected over the upcoming weekend.
Area Forecast Discussion...UPDATED National Weather Service Los Angeles/Oxnard CA 1151 PM PDT Tue Apr 29 2025
SYNOPSIS
29/906 PM.
Night through morning low clouds and fog coverage will continue through Friday. Much cooler and cloudy conditions with showers and gusty winds are expected over the upcoming weekend.
.SHORT TERM (TUE-FRI)...29/929 PM.
***UPDATE***
No significant changes were needed to the forecast database this evening. The marine layer induced stratus clouds have rapidly spread across much of the coast and making progress moving inland this evening. A Catalina Eddy should continue to deepen overnight helping to push stratus further inland and lift the base of the clouds.
***From Previous Discussion***
High confidence in seasonally low impact weather through Friday with relatively small day to day changes in temperatures. Some buildups have already developed across the mountains with a 10 to 20 percent chance of showers across the higher mountains, especially the Ventura County mountains today and continuing each day through Friday.
A weak trough will pass through the region Wednesday and Thursday, leading to a much deeper marine layer with low clouds pushing well into coastal valleys if not lower mountain passes during this timeframe with patchy fog and drizzle possible, especially for valleys and south facing foothills. This type of pattern will support gusty but probably sub advisory winds focused across the interior Wednesday and Thursday afternoon in particular. A reverse clearing pattern is possible Wednesday and Thursday where low clouds linger in the valleys and especially foothills longer than at the coast on those days.
.LONG TERM (SAT-TUE)...29/137 PM.
High confidence in an unseasonably strong storm to push through the region this weekend with gusty northwest to onshore winds, but low confidence in precipitation amounts (if any) and timing.
Widespread advisory level winds will be possible sometime Saturday into Sunday including many coastal areas. Where precipitation does occur it will likely be under a quarter of an inch (except up to around a half of an inch in the mountains), with the Central Coast to mountains the most favorable to receive light amounts. Snow levels will largely be between 5000-7000 feet, although may dip to around 4000 feet Saturday night into Sunday morning with light accumulations generally above 5000 feet. The unusually cold (but moisture starved) system for this time of year will support a 10 percent chance of a thunderstorm over the mountains and deserts.
Any thunderstorms that do form could be slow moving, leading to locally heavier rainfall with embedded hail or graupel. It will feel much like a mid winter storm temperature wide with highs only in the 50s to low 60s for most (10-20 degrees below normal). A late season frost is possible for the coldest interior valleys Sunday or Monday mornings. Otherwise seasonably quiet weather with rebounding temperatures is likely early next week, although there’s a 20 percent chance of some shower activity lingering into early Monday.
AVIATION
30/0650Z.
At 0545Z at KLAX, the marine layer was 1700 feet deep. The top of the inversion was at 3200 feet with a temperature of 18 C.
High confidence in TAFs for KWJF, and KPMD. There is a 20% chance for LIFR to IFR conds at KPRB after 10Z.
Moderate confidence in TAFs for remaining sites. There is a 20 percent chc of SCT conds 21Z-02Z at all coastal sites. Flight Cat changes may be off by +/- 90 minutes.
KLAX...Moderate confidence in TAF. There is a 20 percent chc of SCT015 cond 21Z-02Z. OVC006 conds may not arrive until 1730Z. There is a 10% chance of an 8kt east wind component 12Z-16Z.
KBUR...Moderate confidence in TAF. There is a 30 percent chance cigs remaining AOA OVC006. There is a 25 percent chc of SCT conds not arriving until 1930Z.
MARINE
29/1029 PM.
In the outer waters, good confidence in ongoing Small Craft Advisory (SCA) conds thru Wed morning in the northern zone (PZZ670) and through tonight in the southern two zones (PZZ673/676). SCA conds are not expected across the outer waters Wed night thru early Fri. SCA conds are likely (>80% chance) Fri afternoon thru Sun night, with a 50% chance of GALE force winds Sat afternoon/night.
In the inner waters N of Pt Sal, SCA conds have ended . There is a 40% chance of SCA level winds Wed afternoon/eve. SCA conds are not expected Wed night thru Fri morning. SCA conds are likely (70% chance) in the afternoon/eve hours Fri through Sun, with a 40% chance GALES Sat afternoon/eve.
In the Santa Barbara Channel, there is a 10-20% chance of SCA level winds in western portions during the afternoon/eve hours Wed. SCA conds are not expected late Wed night thru Fri morning.
SCA conds are likely (70% chance) during the afternoon thru late night hours Fri through Sun, with a 40% chance of GALES across western sections Sat afternoon/eve.
In the southern inner waters, SCA conds are not expected thru Sat morning, then are likely (70% chance) beginning in the the afternoon Sat and continuing thru Sun.
LOX WATCHES/WARNINGS/ADVISORIES
CA...Beach Hazards Statement in effect through Wednesday evening for zones 362-366. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect until 9 AM PDT Wednesday for zone 670. (See LAXMWWLOX).
Small Craft Advisory in effect until 3 AM PDT Wednesday for zones 673-676. (See LAXMWWLOX).
***UPDATE***
No significant changes were needed to the forecast database this evening. The marine layer induced stratus clouds have rapidly spread across much of the coast and making progress moving inland this evening. A Catalina Eddy should continue to deepen overnight helping to push stratus further inland and lift the base of the clouds.
***From Previous Discussion***
High confidence in seasonally low impact weather through Friday with relatively small day to day changes in temperatures. Some buildups have already developed across the mountains with a 10 to 20 percent chance of showers across the higher mountains, especially the Ventura County mountains today and continuing each day through Friday.
A weak trough will pass through the region Wednesday and Thursday, leading to a much deeper marine layer with low clouds pushing well into coastal valleys if not lower mountain passes during this timeframe with patchy fog and drizzle possible, especially for valleys and south facing foothills. This type of pattern will support gusty but probably sub advisory winds focused across the interior Wednesday and Thursday afternoon in particular. A reverse clearing pattern is possible Wednesday and Thursday where low clouds linger in the valleys and especially foothills longer than at the coast on those days.
.LONG TERM (SAT-TUE)...29/137 PM.
High confidence in an unseasonably strong storm to push through the region this weekend with gusty northwest to onshore winds, but low confidence in precipitation amounts (if any) and timing.
Widespread advisory level winds will be possible sometime Saturday into Sunday including many coastal areas. Where precipitation does occur it will likely be under a quarter of an inch (except up to around a half of an inch in the mountains), with the Central Coast to mountains the most favorable to receive light amounts. Snow levels will largely be between 5000-7000 feet, although may dip to around 4000 feet Saturday night into Sunday morning with light accumulations generally above 5000 feet. The unusually cold (but moisture starved) system for this time of year will support a 10 percent chance of a thunderstorm over the mountains and deserts.
Any thunderstorms that do form could be slow moving, leading to locally heavier rainfall with embedded hail or graupel. It will feel much like a mid winter storm temperature wide with highs only in the 50s to low 60s for most (10-20 degrees below normal). A late season frost is possible for the coldest interior valleys Sunday or Monday mornings. Otherwise seasonably quiet weather with rebounding temperatures is likely early next week, although there’s a 20 percent chance of some shower activity lingering into early Monday.
AVIATION
30/0650Z.
At 0545Z at KLAX, the marine layer was 1700 feet deep. The top of the inversion was at 3200 feet with a temperature of 18 C.
High confidence in TAFs for KWJF, and KPMD. There is a 20% chance for LIFR to IFR conds at KPRB after 10Z.
Moderate confidence in TAFs for remaining sites. There is a 20 percent chc of SCT conds 21Z-02Z at all coastal sites. Flight Cat changes may be off by +/- 90 minutes.
KLAX...Moderate confidence in TAF. There is a 20 percent chc of SCT015 cond 21Z-02Z. OVC006 conds may not arrive until 1730Z. There is a 10% chance of an 8kt east wind component 12Z-16Z.
KBUR...Moderate confidence in TAF. There is a 30 percent chance cigs remaining AOA OVC006. There is a 25 percent chc of SCT conds not arriving until 1930Z.
MARINE
29/1029 PM.
In the outer waters, good confidence in ongoing Small Craft Advisory (SCA) conds thru Wed morning in the northern zone (PZZ670) and through tonight in the southern two zones (PZZ673/676). SCA conds are not expected across the outer waters Wed night thru early Fri. SCA conds are likely (>80% chance) Fri afternoon thru Sun night, with a 50% chance of GALE force winds Sat afternoon/night.
In the inner waters N of Pt Sal, SCA conds have ended . There is a 40% chance of SCA level winds Wed afternoon/eve. SCA conds are not expected Wed night thru Fri morning. SCA conds are likely (70% chance) in the afternoon/eve hours Fri through Sun, with a 40% chance GALES Sat afternoon/eve.
In the Santa Barbara Channel, there is a 10-20% chance of SCA level winds in western portions during the afternoon/eve hours Wed. SCA conds are not expected late Wed night thru Fri morning.
SCA conds are likely (70% chance) during the afternoon thru late night hours Fri through Sun, with a 40% chance of GALES across western sections Sat afternoon/eve.
In the southern inner waters, SCA conds are not expected thru Sat morning, then are likely (70% chance) beginning in the the afternoon Sat and continuing thru Sun.
LOX WATCHES/WARNINGS/ADVISORIES
CA...Beach Hazards Statement in effect through Wednesday evening for zones 362-366. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect until 9 AM PDT Wednesday for zone 670. (See LAXMWWLOX).
Small Craft Advisory in effect until 3 AM PDT Wednesday for zones 673-676. (See LAXMWWLOX).
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
MBXC1 | 3 mi | 70 min | 53°F | |||||
46215 - Diablo Canyon, CA (076) | 9 mi | 44 min | 51°F | 4 ft | ||||
CPXC1 | 12 mi | 63 min | W 2.9 | 52°F | 30.03 | 51°F | ||
PSLC1 - 9412110 - Port San Luis, CA | 12 mi | 52 min | W 2.9G | 52°F | 55°F | 30.02 | ||
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA | 28 mi | 40 min | NW 9.7G | 56°F |
Wind History for Port San Luis, CA
toggle option: (graph/table)
Airport Reports
Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
Link to 1 hour of 5 minute data for KSBP
Terminal Aerodrome Forecast (TAF) for KSBP
Wind History Graph: SBP
(wind in knots)GEOS Local Image of Southwest
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Vandenberg AFB, CA,

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