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Weather & Climate · The Bay Area
The Definitive The Bay Area Weather Portal

Every forecast across The Bay Area,
highway-clear.

Official National Weather Service forecasts, fog, atmospheric rivers, offshore wind and wildfire smoke — for San Francisco and the Bay Area, from the Golden Gate and Oakland out to Walnut Creek and Livermore, north through Marin to Santa Rosa and the Napa Valley, and east to Fairfield and Vacaville.

Popular: San Francisco · Oakland · Berkeley · Santa Rosa · San Rafael
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Metro Counties Interstates Shields Cities
8
Counties
7.8M
Residents
3.5 mi
Golden Gate
Nov–Mar
Rain Season

Live Satellite & Radar

Imagery · squall.cloud
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Metro Counties

Guide · 8 counties
The City
San Francisco
Downtown · Mission · Sunset · Richmond · Presidio
East Bay
Alameda
Oakland · Berkeley · Fremont · Hayward · Livermore
Peninsula
San Mateo
Daly City · San Mateo · Redwood City · Half Moon Bay
Marin
Marin
San Rafael · Novato · Sausalito · Mill Valley · Point Reyes
Inland East Bay
Contra Costa
Concord · Walnut Creek · Richmond · Antioch · Brentwood
Wine Country
Sonoma
Santa Rosa · Petaluma · Sonoma · Healdsburg · Bodega Bay
Napa Valley
Napa
Napa · St. Helena · Calistoga · American Canyon
North Bay Delta
Solano
Vallejo · Fairfield · Vacaville · Benicia · Rio Vista

In-Town Neighborhoods

Services · inside the City by the Bay

Cities & Suburbs

Services · Live now

Along the Highways

Guide · Drive smart
Interstate
I-80
The Bay Bridge road — San Francisco across the bay through Oakland and Berkeley, then up the Carquinez Strait to Vallejo, Fairfield and Vacaville
Interstate
I-280
The Peninsula's scenic spine — down from San Francisco past Daly City and San Mateo through the fog belt to Silicon Valley
Interstate
I-580
The East Bay cross-town — Richmond over the Richmond-San Rafael Bridge, down through Oakland and Castro Valley and out the Altamont to Livermore
Interstate
I-680
The inland east side — Fairfield and Benicia down through Walnut Creek and Danville to Pleasanton and Fremont
Interstate
I-880
The Nimitz — Oakland's waterfront freeway through Hayward and Fremont south to San Jose
Corridor
US-101 · Redwood Highway
Across the Golden Gate and north through Marin to Petaluma, Santa Rosa and Healdsburg
Corridor
CA-1 · Pacific Coast
The coast road — Pacifica and Half Moon Bay south, Stinson Beach and Point Reyes north to Bodega Bay

The San Francisco Weather Story

Alerts & Climate
Services · May–Sep
Fog & the Marine Layer Soon
Summer heat inland pulls the Pacific through the Golden Gate and over the ridgelines, so San Francisco can sit at 58 while Concord bakes at 98. Karl the Fog has a forecast: hours of arrival and burn-off by neighborhood.
Services · Nov–Mar
Atmospheric Rivers Soon
A plume of tropical moisture stalls over the Coast Range and the creeks rise — the January 2023 and February 2019 storms put the Russian River over its banks. Totals by county, from NWS Bay Area.
Warning · Sep–Nov
Wildfire & Smoke Soon
Offshore Diablo and North winds dry the hills in October — the Tubbs, Kincade and Glass fires, and the orange-sky smoke day of September 2020. Red flag warnings and the air quality for every county.
Services
Wind & the Gate Soon
The Golden Gate is a funnel: afternoon westerlies gust past 40 mph on the bridge, and the hills west of Fairfield and Livermore run turbines on the same air.
Recreation
The Coast & Marin Headlands Soon
Surf, tides and rip-current statements for Ocean Beach, Stinson, Pacifica and Bodega Bay, and the fog forecast for the Headlands trails.
Guide
Climate & Records
Normals, records and trends across all eight counties — and Mark Twain's coldest winter, which he spent in a San Francisco summer, checked.