Weather: Vientiane Half Marathon
Typical climate in March (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
27°C
Temperature
Range: 22°C – 33°C
66%
Humidity
Moderate
16%
Rain Chance
Low chance of rain
March
Typical race month
Usually on a Sunday
Conditions
Early March in Vientiane is hot: highs average about 33°C and lows about 22°C, with humidity near 66%. The race starts at 4:30 am, long before the day's heat.
What to Wear
Light cap or visor
Shield from sun and heat
Sunscreen SPF 30+
27°C means sun exposure risk
Extra hydration plan
Increase fluid intake in heat
Hydration Strategy
Before the Race
Hydrate aggressively in the 24 hours before. Aim for clear urine the morning of the race.
During the Race
Take water at every aid station. Consider sports drink for electrolytes. Don't wait until you're thirsty.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
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