textproduct: San Francisco Bay Area

KEY MESSAGES

Updated at 120 PM PDT Mon Mar 9 2026

- Near normal temperatures today and Tuesday

- Breezy conditions along the coast and coastal mountains today

- Above normal temperatures return Wednesday, warming to well above normal into next weekend

UPDATE

Issued at 831 PM PDT Mon Mar 9 2026

Some low clouds have developed along the Big Sur Coast and across the Monterey Bay region, with patches of cloud popping up near Gilroy, Watsonville, and the southern part of the San Mateo County mountains. Widespread stratus coverage is expected to be limited to the South Bay and Central Coast as high clouds to the north disrupt cloud formation processes. The forecast remains on track with no changes at this time.

DialH

SHORT TERM

Issued at 120 PM PDT Mon Mar 9 2026 (This evening through Tuesday)

Another pleasant day across the region this afternoon under mostly sunny skies. Temperatures are forecast to warm into the lower 60s near the coast and into the mid 70s across the interior. However, these temperatures are still some 3-10 degrees above seasonal averages. Tonight, there is moderate confidence for low clouds to return to the Monterey Bay region and coastal areas late this evening and linger into early Tuesday morning. Elsewhere, mostly clear sky conditions are forecast to prevail. Thus, Tuesday morning's low temperatures are forecast to largely be in the lower 40s (North Bay Valleys) to upper 40s regionwide.

For Tuesday afternoon, expecting slightly cooler temperatures than today as a weak dry frontal boundary sags southward across the region. However, temperatures will be closer to normal with low 60s near the coast and upper 60s to lower 70s across the interior.

LONG TERM

Issued at 120 PM PDT Mon Mar 9 2026 (Tuesday night through next Sunday)

The warming trend will begin on Wednesday as high pressure from the west begins to build into the region. The warming trend is anticipated to continue into this weekend and potentially even into early next week. By Sunday and Monday, temperatures in the warmest interior spots have a 50%-90% probability of exceeding 90 degrees F. These temperatures would be 15-25 degrees above seasonal averages if they were to materialize. However, we are not anticipating any strong offshore winds with this event as the center of the high pressure builds right overhead.

Overnight and early morning temperatures will also warm into the upper 40s to middle 50s Friday and Saturday mornings. These values warm into the mid-to-upper 50s by Sunday morning. As such, we are currently forecasting Moderate HeatRisk across much of the region this upcoming weekend. As such, no rain chances are expected through the next 7 days and potentially through the next 14 days. Stay tuned as we refine the forecast throughout the remainder of the week and into the weekend.

AVIATION

(06Z TAFS) Issued at 911 PM PDT Mon Mar 9 2026

There is an 80% chance that Bay Area terminals will remain VFR through the TAF period with persistent surface winds and high clouds working against fog or stratus development. As the atmosphere becomes better mixed in the afternoon, strong NW winds will return to the surface.

Vicinity of SFO...Strong WNW winds continue to funnel through the San Bruno Gap even at this late hour. These winds will gradually diminish through the night and early morning before returning Tuesday afternoon. The TAF remains VFR, but there is a 20% chance of MVFR ceilings around sunrise.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Unlike the Bay Area terminals, MVFR ceilings have already arrived at both SNS and MRY and will continue through the majority of Tuesday morning as the Monterey Bay eddy pumps cool humid air to the terminals. Unlike last night, stronger surface winds and a deeper marine layer should keep the lower atmosphere mixed enough to avoid LIFR impacts.

MARINE

(Tonight through next Sunday) Issued at 831 PM PDT Mon Mar 9 2026

The gradient between strong high pressure in the Eastern Pacific and lower pressure over California is supporting strong to near gale force NW winds across the exposed coastal waters. These winds are building very rough seas of 12-15 feet. Gale conditions will continue through late Tuesday night before decreasing to a fresh to strong NW breeze for the rest of the week.

MTR WATCHES/WARNINGS/ADVISORIES

CA...None. PZ...Gale Warning until 3 PM PDT Tuesday for Pt Arena to Pt Reyes 0- 10 nm.

Small Craft Advisory until 3 AM PDT Wednesday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.

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