Bay Area Weather Intelligence
Find the best weather across the Bay Area's microclimates.
See where it is sunny, foggy, windy, or warm right now, with live maps, fog forecasts, and neighborhood weather guides.
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Current Bay Area map preview
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Featured fog tools
Bay Area fog forecast and climatology
Check the live marine layer map for the next 36 hours. Then compare how many hours of fog San Francisco, the coast, Marin, Oakland, the Peninsula, and inland valleys get in a typical year.
Designed around layers
Start with a live map, a 3D view, or a weather guide.
Live weather layers
See temperature, wind, clouds, and comfort for hundreds of Bay Area places on one live map.
Open map →Atmospheric 3D views
Watch fog and low clouds move over the hills in 3D, and see why the coast stays gray while inland valleys heat up.
View 3D →Microclimate reporting
Plain-language guides explain why Bay Area weather changes so much over a few miles, and what that means for your day.
Read more →Editorial layer
Fresh reporting from the weather guide
Why the Bay Area Has So Many Microclimates
A 10-mile drive in the Bay Area can mean a 20-degree temperature change. Here is why the region has so many distinct microclimates.
6 min read →
Best Months for Hiking in the Bay Area
Bay Area hiking has two ideal windows, spring wildflower season in April and May and fall clearing season in September and October. Summer is complicated, and winter is muddy. Here is how to plan.
6 min read →
Bay Area Rainy Season: When It Starts, Peaks and Ends
The Bay Area rainy season runs November through March. In San Francisco, the first rain typically falls around October 14 and the first soaking storm around November 3.
7 min read →Popular articles
Most-seen weather guides
Levi's Stadium Weather: 49ers Game-Day Guide for 2026
San Francisco Bay Water Temperature: Today & Monthly
San Francisco Rainfall: How Much and How Often It Rains
San Francisco Weather by Neighborhood: Sunniest to Foggiest
Best Weather for SF Giants Games at Oracle Park
Napa Valley Weather Guide: Best Times to Visit and What to Expect
Why the Bay Area Has So Many Microclimates
Why Is the Pacific So Cold in California? Currents, Upwelling and Fog
Bay Area Coastal vs. Inland: 30-Degree Temperature Differences