Weather: Reykjavik Marathon

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

Racing conditions: Ideal

12°C

Temperature

Range: 9°C – 15°C

70%

Humidity

Moderate

55%

Rain Chance

Rain is likely — prepare gear

August

Typical race month

Usually on a Sunday

Conditions

Cool and often windy with potential for rain, but the midnight sun provides nearly 24 hours of daylight. Layered clothing is essential as conditions can change rapidly throughout the race.

What to Wear

Light gloves

Useful at the start, tuck away later

Long sleeve or arm warmers

Versatile for cool starts

Hat with brim

Keep rain out of your eyes

Anti-chafe cream

Wet conditions increase chafing risk

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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