🏃 Wyndo for Runners
When's the best time to run in San Francisco today?
This is a metro-center reference read of the running weather in San Francisco, CA — not a measurement of every street. Wyndo's decision engine scores heat, dew point, wind, rain, air quality, and daylight across a complete 30-minute run, and shows the weather behind the call.
Live decision Running · 30min · today at the metro-center reference point
Wait until 10:14pm to run.
Marginal conditions right now · Better conditions soon for running
Right now at the city center
Alert
Heat Advisory issued September 9 at 3:14AM PDT until September 10 at 10:00PM PDT by NWS San Francisco CA
Wind
Noticeable wind (17 mph)
Air Quality
Moderate air quality
Wind Gusts
Gusty wind (25 mph gusts)
About the recommended window
Wind
Noticeable wind (11 mph)
Air Quality
Moderate air quality
Time of Day
Slightly off-hours for this activity
Forecast Horizon
This recommendation is ~7h out; forecast accuracy decreases over time.
Metro-center read, generated at 3:13pm in San Francisco. Conditions can change quickly; re-check before you head out.
Today's better run windows at the San Francisco reference point
- Recommended window: 10:14pm–10:44pm
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Why runners here should watch dew point, not just temperature
Air temperature alone under-sells a humid day. Dew point measures how much moisture the air is holding, and the higher it climbs, the less evaporative cooling you get from sweat — so 75°F (24°C) air with a 70°F (21°C) dew point cools a runner far less than 75°F with a 50°F (10°C) dew point. Wyndo's run profile scores heat and humidity together, so the verdict above already accounts for the combination at the San Francisco reference point.
When is the best time to run in San Francisco?
It changes day to day. In San Francisco, CA, early morning is often the coolest part of the day in warm months (though dew point can still be high then), and city streets can hold heat well after sunset — heat, dew point, wind, rain, and air quality can each move the answer. Wyndo scores today's conditions at the San Francisco metro-center reference point and names the better windows on this page; for your exact spot and time range, use the live run-window planner.