Best time to visit Istanbul
The best time to visit Istanbul, Turkey is May–October — expect daytime highs near 26°C and roughly 7.3 rainy days a month. The most challenging month is typically January.
Travel score by month (0–10)
Istanbul climate, month by month
Averages computed from ERA5 reanalysis data, 2019–2024. Daylight on the 15th: 14.9 h in June.
| Month | High | Low | Rain days | Rainfall | Sun/day | Humidity | Score |
|---|---|---|---|---|---|---|---|
| January | 9°C | 4°C | 13.7 | 107 mm | 5.5 h | 78% | 2.9 · Challenging |
| February | 11°C | 5°C | 10.1 | 76 mm | 6.8 h | 78% | 4.7 · Poor |
| March | 12°C | 6°C | 11 | 74 mm | 7.8 h | 78% | 5.5 · Fair |
| April | 17°C | 9°C | 9.2 | 56 mm | 10.3 h | 76% | 8.7 · Excellent |
| May | 21°C | 14°C | 8.8 | 53 mm | 11.8 h | 76% | 9.6 · Excellent |
| June | 26°C | 19°C | 7.3 | 42 mm | 12.9 h | 74% | 9.9 · Excellent |
| July | 29°C | 21°C | 3.7 | 22 mm | 13.5 h | 68% | 9.1 · Excellent |
| August | 29°C | 22°C | 2.6 | 15 mm | 12.6 h | 70% | 9.1 · Excellent |
| September | 26°C | 19°C | 7.1 | 49 mm | 10.9 h | 70% | 9.9 · Excellent |
| October | 20°C | 14°C | 6.5 | 54 mm | 8.4 h | 76% | 9.8 · Excellent |
| November | 16°C | 11°C | 8.8 | 84 mm | 7 h | 77% | 8.1 · Good |
| December | 12°C | 7°C | 12.5 | 91 mm | 5.5 h | 79% | 4.5 · Poor |
January
2.9 · Challenging
9°C / 4°C
💧 13.7 rain days · ☀️ 5.5 h sun · 🌡 feels 78% RH
February
4.7 · Poor
11°C / 5°C
💧 10.1 rain days · ☀️ 6.8 h sun · 🌡 feels 78% RH
March
5.5 · Fair
12°C / 6°C
💧 11 rain days · ☀️ 7.8 h sun · 🌡 feels 78% RH
April
8.7 · Excellent
17°C / 9°C
💧 9.2 rain days · ☀️ 10.3 h sun · 🌡 feels 76% RH
May
9.6 · Excellent
21°C / 14°C
💧 8.8 rain days · ☀️ 11.8 h sun · 🌡 feels 76% RH
June
9.9 · Excellent
26°C / 19°C
💧 7.3 rain days · ☀️ 12.9 h sun · 🌡 feels 74% RH
July
9.1 · Excellent
29°C / 21°C
💧 3.7 rain days · ☀️ 13.5 h sun · 🌡 feels 68% RH
August
9.1 · Excellent
29°C / 22°C
💧 2.6 rain days · ☀️ 12.6 h sun · 🌡 feels 70% RH
September
9.9 · Excellent
26°C / 19°C
💧 7.1 rain days · ☀️ 10.9 h sun · 🌡 feels 70% RH
October
9.8 · Excellent
20°C / 14°C
💧 6.5 rain days · ☀️ 8.4 h sun · 🌡 feels 76% RH
November
8.1 · Good
16°C / 11°C
💧 8.8 rain days · ☀️ 7 h sun · 🌡 feels 77% RH
December
4.5 · Poor
12°C / 7°C
💧 12.5 rain days · ☀️ 5.5 h sun · 🌡 feels 79% RH
Hottest month
August · 29°C
Coldest month
January · 4°C nights
Wettest month
January · 107 mm
Driest month
August · 15 mm
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