Marine Weather and Tide Forecast for Plymouth, CA
 | Sunrise 5:47 AM Sunset 8:31 PM Moonrise 8:36 PM Moonset 5:22 AM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 254 Pm Pdt Fri Jul 11 2025
Tonight - SW wind 10 to 20 kt with a few evening gusts to 25 kt, easing to 5 to 15 kt late.
Sat - SW wind 5 to 10 kt, rising to 10 to 20 kt with a few gusts to 25 kt in the afternoon.
Sat night - SW wind 10 to 20 kt, easing to 5 to 15 knots by midnight.
Sun - SW wind 5 to 10 kt, rising to 10 to 20 kt in the afternoon.
Sun night - SW wind 10 to 20 kt, easing to 5 to 10 kt after midnight.
Mon - SW wind 5 to 15 kt.
Mon night - SW wind 10 to 15 kt.
Tue - SW wind 10 to 15 kt.
Tue night - SW wind 10 to 15 kt.
Wed - SW wind 10 to 15 kt.
Wed night - SW wind 10 to 15 kt.
PZZ500 254 Pm Pdt Fri Jul 11 2025
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
strong northerly breezes with gale force gusts and rough to very rough seas will continue for the far northwestern portion of the northern outer waters through Saturday. Gusty afternoon and early evening onshore winds will continue mainly north of the bay bridge each day through the weekend. Elsewhere, a gentle to moderate breeze with moderate to rough seas will prevail.
strong northerly breezes with gale force gusts and rough to very rough seas will continue for the far northwestern portion of the northern outer waters through Saturday. Gusty afternoon and early evening onshore winds will continue mainly north of the bay bridge each day through the weekend. Elsewhere, a gentle to moderate breeze with moderate to rough seas will prevail.
7 Day Forecast for Marine Location Near Plymouth, CA
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| Tide / Current data from XTide NOT FOR NAVIGATION |
Clarksburg %234, Sacramento River, California, Tide feet
| Tide / Current data from XTide NOT FOR NAVIGATION |
Sacramento %234, Sacramento River, California, Tide feet
FXUS66 KSTO 112032 AFDSTO
Area Forecast Discussion National Weather Service Sacramento CA 132 PM PDT Fri Jul 11 2025
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
DISCUSSION
SYNOPSIS
Hot weather is expected through Monday with Moderate to locally Major HeatRisk. Increasing Delta breeze influence will bring minor cooling and overnight relief over the weekend and into next week in the Delta and adjacent Valley locations. Dry weather and periodically breezy onshore winds are expected through Friday.
KEY MESSAGES
* Today-Monday:
- Heat Advisory remains in effect through 11 PM Monday evening for the northern/central Sacramento Valley and surrounding foothills and mountain locations.
- Broad troughing and attendant northwesterly flow gradually build in, although high heights aloft persist.
- Widespread Moderate HeatRisk with areas of Major HeatRisk across interior NorCal.
- Smoke will continue to impact areas in the vicinity of the Green Fire, with occasional northerly winds spreading smoke and haze southward through the Valley.
- Locally breezy northerly flow in the northern/central Sacramento Valley and adjacent terrain, mainly in the overnight through morning timeframe - Low daytime relative humidity with moderate to poor overnight recoveries over foothills and mountains - Increasing onshore flow and Delta Breeze influence expected into the weekend, bringing minor cooling and overnight relief to the Delta and adjacent Valley.
* Tuesday-Thursday:
- Upper level pattern remains largely persistent with broad troughing/northwesterly flow across interior NorCal.
- Lowering heights aloft introduce a slight cool down to more seasonable temperatures mid to late next week.
- Periodically breezy onshore flow expected to persist, with shifting toward terrain driven influence during the overnight hours.
Changes from previous forecast
- Low (5-10%) chance for isolated mountain thunderstorms across northern Shasta County on Sunday/Monday in the afternoon/evening.
AVIATION
VFR conditions prevail across interior NorCal next 24 hours, although some periodic reductions to MVFR in advecting FU/HZ possible. Winds to remain primarily light and less than 12 kts, although southwest gusts to 20 kts in Delta and vicinity after 00z Saturday.
STO WATCHES/WARNINGS/ADVISORIES
Heat Advisory until 11 PM PDT Monday for Burney Basin / Eastern Shasta County-Central Sacramento Valley-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-Shasta Lake Area / Northern Shasta County-Western Plumas County/Lassen Park.
Area Forecast Discussion National Weather Service Sacramento CA 132 PM PDT Fri Jul 11 2025
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
DISCUSSION
SYNOPSIS
Hot weather is expected through Monday with Moderate to locally Major HeatRisk. Increasing Delta breeze influence will bring minor cooling and overnight relief over the weekend and into next week in the Delta and adjacent Valley locations. Dry weather and periodically breezy onshore winds are expected through Friday.
KEY MESSAGES
* Today-Monday:
- Heat Advisory remains in effect through 11 PM Monday evening for the northern/central Sacramento Valley and surrounding foothills and mountain locations.
- Broad troughing and attendant northwesterly flow gradually build in, although high heights aloft persist.
- Widespread Moderate HeatRisk with areas of Major HeatRisk across interior NorCal.
- Smoke will continue to impact areas in the vicinity of the Green Fire, with occasional northerly winds spreading smoke and haze southward through the Valley.
- Locally breezy northerly flow in the northern/central Sacramento Valley and adjacent terrain, mainly in the overnight through morning timeframe - Low daytime relative humidity with moderate to poor overnight recoveries over foothills and mountains - Increasing onshore flow and Delta Breeze influence expected into the weekend, bringing minor cooling and overnight relief to the Delta and adjacent Valley.
* Tuesday-Thursday:
- Upper level pattern remains largely persistent with broad troughing/northwesterly flow across interior NorCal.
- Lowering heights aloft introduce a slight cool down to more seasonable temperatures mid to late next week.
- Periodically breezy onshore flow expected to persist, with shifting toward terrain driven influence during the overnight hours.
Changes from previous forecast
- Low (5-10%) chance for isolated mountain thunderstorms across northern Shasta County on Sunday/Monday in the afternoon/evening.
AVIATION
VFR conditions prevail across interior NorCal next 24 hours, although some periodic reductions to MVFR in advecting FU/HZ possible. Winds to remain primarily light and less than 12 kts, although southwest gusts to 20 kts in Delta and vicinity after 00z Saturday.
STO WATCHES/WARNINGS/ADVISORIES
Heat Advisory until 11 PM PDT Monday for Burney Basin / Eastern Shasta County-Central Sacramento Valley-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-Shasta Lake Area / Northern Shasta County-Western Plumas County/Lassen Park.
Wind History for Port Chicago, CA
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Link to 1 hour of 5 minute data for KMHR
Terminal Aerodrome Forecast (TAF) for KMHR
Wind History Graph: MHR
(wind in knots)
GEOS Local Image of Central West Coast
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Sacramento, CA,
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