Marathon

Istanbul Marathon

Türkiye İş Bankası İstanbul Maratonu

Istanbul, Turkey October 42.195 km
19/100 Easy

Difficulty

Marathon Index Score

2026 edition held Nov 1, 2026

Next edition expected

Usually October

2027 date not yet confirmed

Weather: Istanbul Marathon

Typical climate in October (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: 9°C – 15°C

79%

Humidity

High — increase hydration

46%

Rain Chance

Possible — check forecast

October

Typical race month

Usually on a Sunday

Conditions

November in Istanbul is cool and often damp: average highs are around 15°C and lows around 9°C, with relative humidity near 79% and rain on about 14 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

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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