Weather: Everest Marathon
Typical climate in May (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
9°C
Temperature
Range: 4°C – 14°C
65%
Humidity
Moderate
45%
Rain Chance
Possible — check forecast
May
Typical race month
Usually on a Saturday
Conditions
Late May is the last month before the monsoon rains build up. At the Namche Bazaar finish, at 3,450 m, the average May high is about 14°C and the low about 4°C, and the start at Everest Base Camp is roughly 1,900 m higher and colder.
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
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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