Weather: Everest Marathon
Historical weather data for race day in May. Use this to plan your race strategy, clothing, and hydration.
-5°C
Temperature
Range: -12°C – 2°C
65%
Humidity
Moderate
45%
Rain Chance
Possible — check forecast
May
Typical race month
Usually on a Saturday
Conditions
May offers a brief window before monsoon season with cold temperatures and potential snow or rain at altitude. Strong winds are common at high elevation; runners experience thin air with only 50% oxygen availability at the start.
What to Wear
Gloves & hat
Essential for freezing starts
Thermal base layer
Retain body heat in cold wind
Disposable outer layer
Stay warm pre-race, toss at the start
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
You'll sweat less in the cold but still need fluids. Take small sips at aid stations.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
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