Marine Weather Net

San Francisco Bay north of the Bay Bridge, including San Pablo Bay, Suisun Bay, and West Delta, CA Marine Forecast


5 - 10


10 - 15


5 - 10


5 - 10

The Marine Weather Forecast In Detail:
PZZ530 Forecast Issued: 230 PM PST Sat Dec 03 2022

Tonight...S Winds 5 To 10 Knots...Increasing To 10 To 15 Knots With Gusts Up To 25 Knots After Midnight. Rain.
Sun...Sw Winds 10 To 15 Knots. Rain Likely.
Sun Night...S Winds 5 To 10 Knots. Rain Likely.
Mon...Sw Winds 5 To 10 Knots. Rain Likely.
Mon Night...Nw Winds Around 5 Knots. A Chance Of Rain.
Tue...N Winds 5 To 10 Knots.
Tue Night...Nw Winds Around 5 Knots.
Wed...Ne Winds Around 5 Knots.
Thu...Se Winds 5 To 10 Knots. A Chance Of Rain.
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Area Forecast Discussion
National Weather Service San Francisco Bay Area
335pm PST Sat Dec 3 2022

Cold temperatures are once again expected into this morning, especially across the interior portions of the North Bay and East Bay. Rain will continue through the afternoon today with highest rainfall amounts over the Santa Lucias expected. Another round of rain expected tonight into Sunday. Dry and cold weather early next week with potential for lingering rain showers.

As of 02:28pm PST Saturday...As expected, the Big Sur coast has been seeing persistent rainfall through the morning with more to come this afternoon. So far, the highest observed total rainfall from this plume of moisture is 3.58 inches on the very southern edge of the Big Sur Coast.

This southern plume will continue to offer steady rain chances for Monterey Co will into the night with more scattered chances entering the Bay Area through the evening. The highest rain rate will remain focused on the Big Sur Coast, but again forecasted rates look to stay below debris flow thresholds for the Monterey Co burn scars.

As the southern plume of moisture cuts off its feed and moves inland, the next trough from the North begins to affect the North Bay counties late tonight. Recent model updates have been slowing the initial boundary's strength and speed. This reduces rainfall rates, but increases the duration of this passage, meaning rainfall amounts only reduced slightly.

The parent low pressure of this next boundary will also move into the area, offering scattered rain chances lasting into Tuesday morning. Again, rates look mild, but it will be over a fair amount of time. Rain fall totals between the time of writing and Tuesday are mostly between 0.5" to 1" around the Bay Area. While the southern counties of the CWA (County Warning Area) will see much less rainfall after today.

Temperatures are not expected to see much movement until the middle of next week. Daily highs will stay mostly in the 40s and 50s with lows staying in the 30s and 40s. After the mid week, expect lows to fall into the lower 30s for most of the more interior areas, with highs remaining cool.

Daily Record Low Temperatures for December 3rd.

12/03 Record Low Record Year

Santa Rosa coop 27 1923, 1918, 1913 Napa State Hospital 28 1936 Richmond 36 1952 Livermore coop 27 1936 San Francisco downtown 41 1963, 1906 SFO Airport 38 1976, 1968, 1956 Redwood City 28 1936 Half Moon Bay 34 2004 Oakland Museum 40 1978, 1976 San Jose 29 1909 Gilroy 25 1957 Salinas Airport 30 2004, 1934 King City 24 2004

as of 03:34pm PST Saturday...Moderate to fresh southerly winds across the waters as a stationary front sits across the Central Coast. A cold front will pass through late tonight through Sunday bringing increasing southwesterly winds. A slight chance of thunderstorms north of Point Reyes exists Saturday night through Sunday behind the front. A new Northwest swell will spread through the waters tonight into Sunday creating hazardous seas in the outer waters for smaller vessels.

NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories
Small Craft Advisory...Point Pinos to Point Piedras Blancas 0-10 nm
Small Craft Advisory...Point Arena to Pigeon Point 10-60nm