Half Marathon

Istanbul Half Marathon

İstanbul Yarı Maraton

Istanbul, Turkey April 21.0975 km
18/100 Easy

Difficulty

Marathon Index Score

2026 edition held Apr 19, 2026

Next edition expected

Usually April

2027 date not yet confirmed

Weather: Istanbul Half Marathon

Typical climate in April (an estimate, not measured race-day data). Use it to plan your race strategy, clothing, and hydration.

Racing conditions: Ideal

Typical climate for the race month — an estimate, not a forecast or a race-day record

12°C

Temperature

Range: 8°C – 16°C

75%

Humidity

Moderate

33%

Rain Chance

Possible — check forecast

April

Typical race month

Usually on a Sunday

Conditions

April in Istanbul is cool and damp: highs average about 16°C and lows about 8°C, humidity is around 75%, and rain is recorded on roughly ten days of the month.

What to Wear

Light gloves

Useful at the start, tuck away later

Long sleeve or arm warmers

Versatile for cool starts

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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