Karl the Fog, legendary hills, and some of the world's most iconic running routes — welcome to San Francisco.
45°F to 75°F throughout year
58°F
Sep-Nov
45-58°F
What to wear:
💡 SF winters are mild but wet. A light waterproof jacket is essential Dec-Feb. The hills get slippery — shorten your stride on wet pavement.
50-65°F
What to wear:
💡 April in SF can mean fog at 8am and sunshine by noon. Dress in removable layers and start with more than you think you need.
55-68°F
What to wear:
💡 San Francisco's "summer" confuses tourists. Karl the Fog keeps it 55-65°F. Don't let the calendar fool you — bring a jacket.
60-75°F
What to wear:
💡 September-October is SF's real summer. Clear skies, warm temps, minimal fog. Golden Gate Bridge runs in October are magical.
World-class — cross the bridge for incredible trail running in the Headlands
Flat Bay waterfront, best flat route in the city
Coastal cliffs and hidden beach coves — bring a camera
Forested hills above the Bay, connects to Crissy Field and the bridge
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