+41.0138° · +28.9497° · ELEV 0m

Istanbul

Turkey · Istanbul

Monthly weather averages for Istanbul, Turkey — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.

№ 01

Climate Overview

August → January

Istanbul has a temperate climate. The warmest month is August (29°C average high) and the coolest is January (9°C).

№ 02

Rainfall by Month

726 mm / year

Istanbul sees 726 mm of rain a year. The wettest month is January (103 mm); the driest is August (17 mm).

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№ 03

Best Time to Visit

May–October
May–October
14°C – 29°C · 11.7h sun

The best time to visit Istanbul is May–October, when temperatures average 14°C–29°C with 11.7 sunshine hours per day.

Some visitors prefer April for cooler, drier conditions.

№ 04

Monthly Breakdown

12 months · °C · mm · hours
Monthly climate normals for Istanbul, Turkey — click a column to sort
January9.2°C4.3°C103 mm5.6 h08:2617:59
February10.3°C4.9°C75 mm6.9 h07:5918:37
March11.9°C5.8°C77 mm7.9 h07:1619:09
April16.1°C8.7°C53 mm10.3 h06:2519:42
May20.9°C13.8°C51 mm11.9 h05:4620:14
June25.4°C18.4°C46 mm12.9 h05:3120:37
July28.7°C21.2°C24 mm13.6 h05:4420:35
August29.2°C22.3°C17 mm12.6 h06:1320:04
September25.4°C18.9°C50 mm10.9 h06:4419:14
October20.0°C14.5°C61 mm8.2 h07:1518:24
November16.0°C10.8°C83 mm7.0 h07:5117:46
December11.5°C6.8°C86 mm5.5 h08:2117:36

Nearby cities

View monthly climate averages for nearby cities or compare them with Istanbul.

Temperature, rainfall and sunshine, month by month.