Weather: Oslo Marathon
Historical weather data for race day in September. Use this to plan your race strategy, clothing, and hydration.
13°C
Temperature
Range: 9°C – 16°C
72%
Humidity
Moderate
55%
Rain Chance
Rain is likely — prepare gear
September
Typical race month
Usually on a Sunday
Conditions
Early autumn conditions with mild temperatures and moderate rainfall probability. Runners should expect cool, crisp weather with potential for rain; layering and weather-appropriate gear recommended.
What to Wear
Singlet or short sleeve
Ideal racing temperatures
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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