Hercules, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Hercules, CA

May 21, 2024 5:49 PM PDT (00:49 UTC) Change Location
Sunrise 5:51 AM   Sunset 8:19 PM
Moonrise 5:52 PM   Moonset 3:35 AM 
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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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 251 Pm Pdt Tue May 21 2024

Rest of today - W wind 5 to 10 kt. Waves around 2 ft or less.

Tonight - SW wind 5 to 10 kt. Waves around 2 ft or less.

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

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

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

Thu night - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Waves around 2 ft or less.

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

Fri night - SW wind 10 to 15 kt. Waves around 2 ft or less.

Sat - SW wind 10 to 15 kt. Waves around 2 ft or less.

Sat night - SW wind 10 to 15 kt. Waves around 2 ft or less.

PZZ500 251 Pm Pdt Tue May 21 2024

Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
expect strong and gusty northwest winds continue over the coastal waters through the mid week, with gale force gusts across the outer waters. Expect hazardous conditions and steeper wind waves with these strong winds. The pattern changes and winds are expected to reduce into the late week


7 Day Forecast for Marine Location Near Hercules, CA
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Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 212331 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 431 PM PDT Tue May 21 2024

New AVIATION, MARINE

SYNOPSIS
Issued at 1237 PM PDT Tue May 21 2024

Summer-like pattern to persist through Thursday. Temperatures are forecast to dip below seasonal averages by the upcoming weekend as an upper level trough impacts the region.

SHORT TERM
(This evening through Wednesday)
Issued at 1237 PM PDT Tue May 21 2024

The broad tilted upper level troughing pattern over California has brought some weak offshore winds over interior areas, causing some warmer temperatures and drier conditions. The offshore flow will help inhibit some of the marine layer from reaching inland tonight into Wednesday morning allowing for another blue sky morning for interior regions. On the other hand, the weak onshore flow along the coast will bring some low clouds along the coastal areas, especially near Monterey Bay and Salinas Valley tonight. Models show interior regions will be on the drier side this evening with minimum relative humidity values between 14-30%.

Overnight temperatures are relatively the same as last night with minimums in the mid to upper 40's to low to mid 50's. Some isolated areas will see a slight increase 2-3 degrees higher. Temperatures will start to trend cooler on Wednesday, but still will be relatively warmer than usual with inland max temperatures in the low 80s to high 70s, as coastal areas will see temperatures in the upper 50s to 60s. The onshore flow along the coast will increase on Wednesday, which will help increase some relative humidity values between 20-55%.

LONG TERM
(Wednesday night through next Monday)
Issued at 1237 PM PDT Tue May 21 2024

The low pressure system that sits in the northwest, will drop south a bit on Thursday and will move across the Pacific northwest over the weekend, which will bring stronger onshore flow and cooler temperatures. Thursday will start to see max temperatures in the mid 70s inland and upper 50s to 60s along the coast. Friday through the weekend, max temperatures are expected to drop between 5 to 7 degrees below average over the weekend with mid 50s to low 60s coastline and upper 60s to low 70s inland. With the stronger onshore flow, expect the gloomy mornings pattern to continue along the coast, with slow clearing in the mornings. Ensemble models show no impactful precipitation associated with this trough as it moves through our area this weekend, but if precipitation does occur this weekend, expect the best chance to occur near the coast. On Sunday into Monday, a weak ridging will develop over our area bringing back some slightly warmer temperatures.

AVIATION
(00Z TAFS)
Issued at 431 PM PDT Tue May 21 2024

VFR through the TAF Period for all but the Monterey Bay, which will see IFR/MVFR CIGs starting in the early morning and lasting into the late morning. Expect winds to become light to moderate overnight for most areas. Moderate winds build into Wednesday afternoon, with gusty winds expected along the immediate coast, in portions of the North Bay, and around the SF Bay.

Vicinity of SFO...VFR through the TAF period. Expect moderate west winds overnight. Gusty westerly winds arrive Wednesday afternoon with peak gusts around 26 kts. These winds reduce into the early night, but stay moderate.

SFO Bridge Approach...Similar to SFO

Monterey Bay Terminals...VFR LAsts through the late night with IFR/MVFR CIGs arriving in the early morning and lasting into the late morning. Expect light winds overnight with more moderate westerly winds arriving Wednesday afternoon and lasting into the night.

MARINE
(Tonight through next Sunday)
Issued at 431 PM PDT Tue May 21 2024

Expect strong and gusty northwest winds continue over the coastal waters through the mid week, with gale force gusts across the outer waters. Expect hazardous conditions and steeper wind waves with these strong winds. The pattern changes and winds are expected to reduce into the late week

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 3 PM PDT Wednesday for Pt Arena to Pt Reyes 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.

Small Craft Advisory until 9 PM PDT this evening for Pigeon Pt to Pt Pinos 0-10 nm.

Small Craft Advisory from 9 AM to 3 PM PDT Wednesday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.

Gale Warning until 3 PM PDT Wednesday for Pt Arena to Pt Reyes 10-60 NM.

Gale Warning until 3 AM PDT Wednesday for Pigeon Pt to Pt Pinos 10-60 NM.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 3 mi50 min WSW 8G11 71°F 29.91
CQUC1 4 mi49 min 62°F
MZXC1 - 9415102 - Martinez-Amorco CA 9 mi50 min W 17G19 78°F 66°F29.91
PPXC1 - 9414847 - Richmond (Point Potrero), CA 9 mi50 min SW 6G8 65°F 29.95
RCMC1 - 9414863 - Richmond, CA 9 mi50 min ESE 1.9G6 70°F 60°F29.93
UPBC1 9 mi50 min WNW 15G20
TIBC1 - Tiburon Pier, San Francisco Bay, CA 12 mi96 min WSW 8.9 68°F 29.9249°F
PCOC1 - 9415144 - Port Chicago, CA 14 mi50 min W 15G16 76°F 29.89
OKXC1 - 9414776 - Oakland (Berth 34), CA 15 mi50 min W 6G12 67°F 29.93
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 15 mi50 min WSW 11G14
LNDC1 16 mi50 min NW 5.1G12 71°F 29.94
PXOC1 - 9414311 - San Francisco (Pier 1), CA 16 mi50 min WSW 8.9G14 68°F 29.91
PXSC1 16 mi50 min 67°F
AAMC1 - 9414750 - Alameda, CA 17 mi50 min W 8.9G12 68°F 65°F29.95
FTPC1 - 9414290 - San Francisco, CA 17 mi50 min WSW 14G19 58°F 29.96
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 21 mi50 min NW 13G17 77°F 29.88
46237 - San Francisco Bar, CA (142) 24 mi50 min 56°F 58°F5 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 34 mi70 min 55°F8 ft
PRYC1 - 9415020 - Point Reyes, CA 36 mi50 min 29.97
RTYC1 - 9414523 - Redwood City, CA 36 mi50 min W 8.9G13 77°F 71°F29.93


Wind History for Point Potrero Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KCCR BUCHANAN FIELD,CA 12 sm56 minWNW 1610 smClear84°F41°F22%29.89
KAPC NAPA COUNTY,CA 13 sm55 minS 1010 smClear75°F55°F50%29.91
KDVO GNOSS FIELD,CA 17 sm14 minWSW 11G177 smClear81°F34°F18%29.89
KOAK METROPOLITAN OAKLAND INTL,CA 21 sm56 minW 1310 smClear70°F48°F46%29.94
Link to 5 minute data for KCCR


Wind History from CCR
(wind in knots)
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Tide / Current for Hercules, Refugio Landing, San Pablo Bay, California
   
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Hercules
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Tue -- 04:34 AM PDT     Moonset
Tue -- 05:53 AM PDT     Sunrise
Tue -- 06:55 AM PDT     -0.20 feet Low Tide
Tue -- 01:09 PM PDT     4.50 feet High Tide
Tue -- 06:21 PM PDT     2.34 feet Low Tide
Tue -- 06:52 PM PDT     Moonrise
Tue -- 08:18 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Hercules, Refugio Landing, San Pablo Bay, California, Tide feet
12
am
6.2
1
am
5.7
2
am
4.7
3
am
3.3
4
am
1.9
5
am
0.8
6
am
0
7
am
-0.2
8
am
0.2
9
am
1.1
10
am
2.2
11
am
3.3
12
pm
4.1
1
pm
4.5
2
pm
4.4
3
pm
3.9
4
pm
3.3
5
pm
2.7
6
pm
2.4
7
pm
2.5
8
pm
3.1
9
pm
4.1
10
pm
5.2
11
pm
6.1


Tide / Current for Davis Point, California Current
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Davis Point
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Tue -- 12:59 AM PDT     -0.00 knots Slack
Tue -- 04:34 AM PDT     Moonset
Tue -- 05:46 AM PDT     -2.25 knots Max Ebb
Tue -- 05:53 AM PDT     Sunrise
Tue -- 09:04 AM PDT     0.00 knots Slack
Tue -- 11:28 AM PDT     0.97 knots Max Flood
Tue -- 02:57 PM PDT     -0.00 knots Slack
Tue -- 05:45 PM PDT     -0.83 knots Max Ebb
Tue -- 06:52 PM PDT     Moonrise
Tue -- 07:44 PM PDT     0.00 knots Slack
Tue -- 08:18 PM PDT     Sunset
Tue -- 10:18 PM PDT     1.69 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Davis Point, California Current, knots
12
am
0.7
1
am
-0
2
am
-0.7
3
am
-1.3
4
am
-1.8
5
am
-2.1
6
am
-2.2
7
am
-1.9
8
am
-1
9
am
-0.1
10
am
0.6
11
am
0.9
12
pm
0.9
1
pm
0.8
2
pm
0.4
3
pm
-0
4
pm
-0.4
5
pm
-0.7
6
pm
-0.8
7
pm
-0.5
8
pm
0.2
9
pm
1.1
10
pm
1.7
11
pm
1.5


Weather Map
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GEOS Local Image of Central West Coast   
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