Weather: San Francisco Half Marathon
Typical climate in February (an estimate, not measured race-day data). Use it to plan your race strategy, clothing, and hydration.
Typical climate for the race month — an estimate, not a forecast or a race-day record
12°C
Temperature
Range: 9°C – 16°C
77%
Humidity
High — increase hydration
39%
Rain Chance
Possible — check forecast
February
Typical race month
Usually on a Sunday
Conditions
February in San Francisco is cool and damp: average highs are around 16°C and lows around 9°C, with relative humidity near 77% and measurable rain on about 11 days of the month.
What to Wear
Light gloves
Useful at the start, tuck away later
Long sleeve or arm warmers
Versatile for cool starts
Hydration Strategy
Before the Race
Normal hydration. Drink to thirst in the 24 hours before. Avoid over-hydrating.
During the Race
Drink at aid stations every 3-4km. Alternate water and sports drink.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
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