Weather: Houston Marathon

Historical weather data for race day in January. Use this to plan your race strategy, clothing, and hydration.

Racing conditions: Ideal

13°C

Temperature

Range: 9°C – 18°C

72%

Humidity

Moderate

35%

Rain Chance

Possible — check forecast

January

Typical race month

Usually on a Sunday

Conditions

January in Houston offers mild winter conditions with moderate humidity and occasional rain. Morning temperatures are cool and ideal for distance running, with potential for afternoon warming.

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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