Weather: Helsinki Half Marathon
Typical climate in June (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
15°C
Temperature
Range: 11°C – 19°C
70%
Humidity
Moderate
47%
Rain Chance
Possible — check forecast
June
Typical race month
Usually on a Saturday
Conditions
June in Helsinki is mild: average highs are about 19°C and lows about 11°C, with relative humidity near 70% and around 14 days with some rain. The race starts at 8:30 in the morning.
What to Wear
Singlet or short sleeve
Ideal racing temperatures
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
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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