Weather: Honolulu Half Marathon
Typical climate in April (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
25°C
Temperature
Range: 21°C – 28°C
67%
Humidity
Moderate
25%
Rain Chance
Low chance of rain
April
Typical race month
Usually on a Sunday
Conditions
April in Honolulu is warm and mostly dry: highs average about 28°C, lows about 21°C, humidity is around 67%, and rain falls on roughly seven days of the month.
What to Wear
Light cap or visor
Shield from sun and heat
Sunscreen SPF 30+
25°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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