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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the True North Brief Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for today’s conditions in San Francisco. Expect a mild, Mediterranean climate with daytime highs typically in the 15–21°C range, though fog and wind can make it feel cooler — especially near the coast.
What is the typical weather pattern in San Francisco?
San Francisco weather by month shows only modest temperature swings: average highs hover near 15°C in both December and February, while summer peaks around 21°C. The dry season runs May through October; November through April brings the bulk of the annual rainfall (about 600 mm). San Francisco weather yearly is remarkably consistent because of the cool Pacific Ocean and persistent marine layer.
For a closer look at daily fluctuations, consult a san francisco weather 14 day or san francisco weather 15 day outlook — but remember that longer-range forecasts are less reliable due to the city’s dynamic marine influence. If you need a san francisco weather 10 days snapshot, the live forecast above is your best bet. All temperatures reported in san francisco weather celsius here.
How do microclimates affect your experience?
The city’s neighbourhoods can differ by 5–10°C at the same moment. Western districts (e.g., Sunset, Richmond) are often cooler and foggier, while the eastern Mission and SoMa are sunnier and warmer. Always check local conditions beyond a central reading — especially if you’re planning outdoor activities across multiple areas.
Why is San Francisco so foggy in summer?
The cold California Current chills the offshore air, which then meets warm inland air rising from the Central Valley. This creates a thick marine layer that pushes fog through the Golden Gate, especially from June through August — a phenomenon known locally as “June Gloom.”
What is the best time for clear skies in San Francisco?
September and October are generally the clearest and warmest months, with fog less frequent and average highs reaching 21–23°C. Spring (March–May) can also offer sunny days, though morning fog remains common.
Can I trust a 14-day forecast for San Francisco?
Long-range forecasts (14-day, 15-day) can indicate broad trends like cool or warm periods, but day-to-day accuracy drops sharply beyond 7 days. The marine layer makes local conditions highly variable. Rely on the live forecast above for the best short-term guidance.
Explore more about California weather or check current weather warnings for your area.