Weather: San Francisco Marathon
Typical climate in July (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
16°C
Temperature
Range: 12°C – 19°C
75%
Humidity
Moderate
2%
Rain Chance
Low chance of rain
July
Typical race month
Usually on a Sunday
Conditions
July in San Francisco is cool and dry: average highs are around 19°C and lows around 12°C, with relative humidity near 75% and almost no rain. The organisers give a historical race temperature of 64°F (about 18°C).
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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