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.

Racing conditions: Ideal

Typical climate for the race month — an estimate, not a forecast or a race-day record

14°C

Temperature

Range: 11°C – 17°C

68%

Humidity

Moderate

15%

Rain Chance

Low chance of rain

February

Typical race month

Usually on a Sunday

Conditions

Cool spring weather with mild temperatures and clear skies typical of San Francisco's April climate. Occasional fog and wind from the Bay are possible; layers are recommended.

What to Wear

Singlet or short sleeve

Ideal racing temperatures

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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