Weather: Brooklyn Half 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
16°C
Temperature
Range: 12°C – 20°C
70%
Humidity
Moderate
37%
Rain Chance
Possible — check forecast
May
Typical race month
Usually on a Saturday
Conditions
Mid-May in New York is mild: highs average about 20°C and lows about 12°C, with rain on around eleven days of the month. NYRR started the 2026 race under a yellow flag because of warm weather.
What to Wear
Singlet or short sleeve
Ideal racing temperatures
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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