Historical weather in Istanbul, Turkey
Istanbul weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
Interactive graph
Explore Istanbul in the interactive graph
Open the full graph with Istanbul already loaded, then add more cities to compare.
Weather summary
Across 2023-2025, Istanbul averaged 19.8 C for daily highs and 13.0 C for daily lows across 1096 daily observations.
The warmest month was July 2025, with an average high of 31.6 C, while February 2025 had the lowest average low at 2.6 C.
The wettest month was November 2023, totaling 287.5 mm of precipitation.
The hottest day reached 38.1 C on July 26, 2023; the coldest night fell to -3.7 C on February 23, 2025.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | 6.1 | 11.7 | 23.2 | 31 |
| 2023 | February | 3.6 | 9.7 | 49.0 | 28 |
| 2023 | March | 6.5 | 12.6 | 130.5 | 31 |
| 2023 | April | 9.1 | 15.8 | 105.1 | 30 |
| 2023 | May | 12.4 | 19.3 | 71.6 | 31 |
| 2023 | June | 17.5 | 25.0 | 30.8 | 30 |
| 2023 | July | 20.7 | 30.9 | 22.4 | 31 |
| 2023 | August | 22.7 | 30.9 | 3.6 | 31 |
| 2023 | September | 19.6 | 27.4 | 69.5 | 30 |
| 2023 | October | 15.3 | 22.3 | 36.9 | 31 |
| 2023 | November | 11.8 | 17.8 | 287.5 | 30 |
| 2023 | December | 7.9 | 13.2 | 98.5 | 31 |
| 2024 | January | 4.9 | 10.1 | 98.7 | 31 |
| 2024 | February | 6.5 | 12.7 | 25.5 | 29 |
| 2024 | March | 5.5 | 13.8 | 72.1 | 31 |
| 2024 | April | 11.4 | 19.7 | 61.7 | 30 |
| 2024 | May | 12.0 | 20.0 | 66.7 | 31 |
| 2024 | June | 19.9 | 29.4 | 23.0 | 30 |
| 2024 | July | 22.5 | 31.0 | 19.7 | 31 |
| 2024 | August | 21.6 | 30.0 | 11.7 | 31 |
| 2024 | September | 18.7 | 26.5 | 96.7 | 30 |
| 2024 | October | 13.6 | 20.7 | 14.4 | 31 |
| 2024 | November | 9.2 | 14.7 | 68.7 | 30 |
| 2024 | December | 8.0 | 11.6 | 161.8 | 31 |
| 2025 | January | 6.4 | 11.0 | 85.0 | 31 |
| 2025 | February | 2.6 | 7.0 | 81.8 | 28 |
| 2025 | March | 8.2 | 15.8 | 37.5 | 31 |
| 2025 | April | 8.2 | 15.4 | 38.9 | 30 |
| 2025 | May | 13.9 | 21.7 | 78.4 | 31 |
| 2025 | June | 19.4 | 28.1 | 2.3 | 30 |
| 2025 | July | 22.6 | 31.6 | 0.4 | 31 |
| 2025 | August | 22.6 | 28.9 | 2.4 | 31 |
| 2025 | September | 19.2 | 24.9 | 27.5 | 30 |
| 2025 | October | 14.1 | 19.1 | 138.2 | 31 |
| 2025 | November | 13.5 | 18.0 | 71.5 | 30 |
| 2025 | December | 7.5 | 11.9 | 80.2 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | July 26, 2023 | 38.1 C |
| Coldest night | February 23, 2025 | -3.7 C |
| Wettest day | November 18, 2023 | 58.4 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.