Marine Weather Net

San Francisco Bay South of the Bay Bridge Marine Forecast


TODAY

VARIABLE
WINDS

TONIGHT

W
WINDS
10 - 15
KNOTS

MON

W
WINDS
5 - 10
KNOTS

MON NIGHT

W
WINDS
5 KNOTS

The Marine Weather Forecast In Detail:
PZZ531 Forecast Issued: 859 AM PST Sun Nov 02 2025

Today...Light And Variable Winds, Becoming W Around 5 Kt Late This Morning, Veering To Nw Early This Afternoon, Becoming W 10 To 15 Kt Late. Patchy Dense Fog This Morning.
Tonight...W Wind 10 To 15 Kt, Easing To 5 To 10 Kt After Midnight.
Mon...W Wind 5 To 10 Kt, Rising To 10 To 15 Kt In The Afternoon.
Mon Night...W Wind Around 5 Kt, Backing To S After Midnight.
Tue...Se Wind Around 5 Kt, Veering To Sw In The Afternoon.
Tue Night...S Wind Around 15 Kt, Rising To 20 To 25 Kt With Gusts Up To 35 Kt After Midnight. A Chance Of Rain In The Evening, Then Rain After Midnight.
Wed...S Wind 20 To 25 Kt, Easing To 15 To 20 Kt In The Afternoon. Rain.
Wed Night...S Wind 5 To 10 Kt, Easing To Around 5 Kt After Midnight.
Thu...S Wind Around 5 Kt, Veering To W In The Afternoon. Patchy Fog In The Morning.
Thu Night...Sw Wind Around 5 Kt.
SHARE THIS PAGE:           
Area Forecast Discussion
National Weather Service San Francisco CA 1007am PST Sunday Nov 2 2025

Issued at 908am PST Sunday Nov 2 2025

Patchy to areas of dense fog continue over the San Francisco Bay and around Half Moon Bay this morning. Visibilities are forecast to improve by 10am this morning and give way to mostly clear skies by this afternoon. Forecast maximum temperatures will reach into the upper 70s to lower 80s across the interior, low to mid 70s around the Bay Shoreline, Santa Cruz region, and inland, and 60s closer to the coast. Otherwise, the forecast remains on track with no updates anticipated this morning.

RGass

.SHORT TERM... Issued at 124am PDT Sunday Nov 2 2025 (Today and tonight)

Another warm and quiet day today before things start to change for the week. Afternoon highs about 5-7 degrees above normal away from the coast, near normal along the coast. Patchy dense fog this morning along coastal areas will mimic yesterday morning, but give way to clear skies by mid-morning.

Long Term
Issued at 124am PDT Sunday Nov 2 2025 (Monday through Saturday)

Once again no major changes to the forecast from previous. This does hint towards higher confidence in the current forecast from simply moving closer to the event. A couple of items to note now that some details are more clear. Thunder chances are increasing Wednesday morning along the surface front. This would primarily affect North Bay counties at this juncture, but still can't rule out the possibility of a rumble of thunder or two across the greater Bay Area by late Wednesday morning. Prior to Wednesday morning, there is a chance for showers across the northern portions of the North Bay through Tuesday. This is a smaller chance and the showers would be lighter in general, but these showers along the warm front are typically efficient rain makers despite their lackluster appearance on radar (lookup warm rain vs. cold rain processes if your curious). Despite this system not really "stalling", we can sometimes see these features act as a precursor for flooding impacts once the heavier rain associated with the cold front arrives. The North Bay is currently teetering on the edge of this axis of warm frontal showers Tuesday, so we'll need to keep an eye on that when assessing the potential for local flooding impacts. Still looking at wind being more of a problem across the North Bay and Bay Area as a whole. 50-60 kt flow at 850 mb will translate across the region Wednesday morning along the cold front. This will likely result in 40-50 mph gusts as the front passes. Wind impacts lessen as you go move south. Still too early to nail down Wind Advisory decisions, but Wednesday morning certainly looks like it could be a candidate for areas north of San Jose and through the North Bay.

Marine
(Today through Friday) Issued at 908am PST Sunday Nov 2 2025

Fresh to strong northerly breezes will prevail today, diminishing to become a moderate northwesterly breeze tomorrow. Widespread hazardous conditions will develop Tuesday night and continue through Wednesday with near-gale force southerly winds with gale force gusts, rough to very rough seas, rainfall, and a chance for thunderstorms.

Beaches
Issued at 347am PST Sunday Nov 2 2025

A long period northwesterly swell will bring an increased risk for sneaker waves, rip currents, and breaking waves of up to 20 feet to Pacific Coast beaches through tomorrow. High surf conditions are possible, especially at the west and northwest facing beaches. Remember, sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers. Swimmers should always swim near a lifeguard. Stay off the rocks, remain out of the water to avoid hazardous swimming conditions, and never turn your back on the ocean!

NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories
CA...Beach Hazards Statement through late Monday night for CAZ006-505- 509-529-530.

PZ...Small Craft Advisory until 9pm PST this evening for Pt Arena to Pt Reyes 0-10 nm.

Small Craft Advisory from 3pm this afternoon to 9pm PST this evening for Pigeon Pt to Pt Pinos 0-10 nm.

Small Craft Advisory until 3am PST Monday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm.

x.com/nwsbayarea