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Climate decision guide

Best time to visit Istanbul

Compare rain, sunshine, temperature and daylight month by month before choosing when to visit Istanbul.

Istanbul · Holiday weather simulator

Is this a good month to go?

Choose a month and what matters most. Scores recalculate using ten years of daily climate data.

77/100
October · Your weather fit

A strong time to go

This score combines your selected priority with rain, solar conditions and comfortable temperatures.

☀19.4mostly sunny days
☂7.2rainy days
⌁49 mmmonthly rain
°20.7° / 14.9°typical high / low
◐7.8 hbright hours / day
↔10.8 hdaylight / day

All 12 months

Click any month to compare

#1 · Best matches for youAugust95/100 · ☀ 27.2 days · ☂ 2.7 days
#2 · Best matches for youJuly93/100 · ☀ 26.4 days · ☂ 4.4 days
#3 · Best matches for youSeptember84/100 · ☀ 22.1 days · ☂ 6.7 days

Climate averages, not a forecast. Daily NASA POWER data for 2015–2024. A rainy day has at least 1 mm precipitation; a mostly sunny day receives at least 60% of clear-sky solar energy and has under 1 mm rain. NASA POWER ↗

Istanbul

Questions travellers ask

What is the best month to visit Istanbul?August has the strongest overall weather score (95/100) in the current balanced model. Change the priority in the simulator for a personal result.
How many rainy days does Istanbul have?January has the highest average in this dataset, with about 13.7 days receiving at least 1 mm of precipitation.
Is this a weather forecast?No. These are historical climate averages designed for choosing a travel month, not predicting the weather on specific dates.