Istanbul: Weather Guide & Climate
Complete month-by-month weather guide: Istanbul. Best time to visit: April, May, September, October. Plan your trip with detailed climate data.
☀️ Climate Overview
Istanbul has a Moderate climate with average yearly highs of 18°C, lows of 14°C, and approximately 8 rainy days per month.
The best time to visit Istanbul is during April, May, September, October, when conditions are perfect for sightseeing and exploration
Drier season: May–Oct Wetter season: Jan–Dec
Now
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Air Quality
Hottest
Coldest
Driest Month
Windiest Month
24 km/h
January (gusts 38)
Forecast for your trip dates
Up to 14 days aheadWeather by Season
Spring
Mar–May
Summer
Jun–Aug
Autumn
Sep–Nov
Winter
Dec–Feb
Month-by-Month Weather Table
January
February
March
April
BestMay
BestJune
July
August
September
BestOctober
BestNovember
December
| Month | High | Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition | View Details |
|---|---|---|---|---|---|---|---|---|---|
| January | 10°C | 7°C | 12d (93mm) | 6h | 78% Humid | 2.6 Moderate | | Good | View Details → |
| February | 10°C | 6°C | 12d (78mm) | 7.6h | 77% Humid | 3.9 Moderate | | Good | View Details → |
| March | 11°C | 7°C | 12d (69mm) | 8.4h | 77% Humid | 5.5 High | | Good | View Details → |
| April (best) | 15°C | 10°C | 10d (68mm) | 9.8h | 76% Humid | 7.4 Very High | | Excellent | View Details → |
| May (best) | 20°C | 14°C | 7d (32mm) | 11.7h | 75% Humid | 8.9 Very High | | Excellent | View Details → |
| June | 25°C | 19°C | 5d (26mm) | 13.4h | 73% Humid | 10 Very High | | Good | View Details → |
| July | 28°C | 22°C | 3d (19mm) | 13.4h | 70% Humid | 10.2 Extreme | | Good | View Details → |
| August | 28°C | 23°C | 3d (13mm) | 12.3h | 71% Humid | 8.8 Very High | | Good | View Details → |
| September (best) | 25°C | 20°C | 6d (35mm) | 10.7h | 71% Humid | 6.5 High | | Excellent | View Details → |
| October (best) | 20°C | 16°C | 7d (57mm) | 8.6h | 76% Humid | 4.4 Moderate | | Excellent | View Details → |
| November | 16°C | 12°C | 10d (82mm) | 6.9h | 77% Humid | 2.9 Moderate | | Good | View Details → |
| December | 13°C | 9°C | 13d (79mm) | 5.6h | 80% Very Humid | 2.2 Moderate | | Wet | View Details → |
Istanbul
Where East meets West – Hagia Sophia and the Blue Mosque, bustling bazaars like the Grand Bazaar, Bosphorus cruises, and layers of history.
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Frequently Asked Questions
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More Istanbul Guides
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Things to Do
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Complete travel guide for Istanbul: top things to do, itineraries, and typical costs.