Weather on September 15 in Istanbul
Historical weather data for September 15 in Istanbul, Turkey
Based on 55 years of data from ISTANBUL
About This Date
September 15th in Istanbul, Turkey typically brings warm fall weather, with average highs around 27°C and lows near 16°C. Over 55 years of records, the warmest September 15th was in 2008 (27°C average), while the coldest was 1990 (16°C) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 11% of September 15th dates historically, with the wettest September 15th recording 1.98" of rain. The last decade has been 6.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.0°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Istanbul? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 26°C (78°F) | 17°C (63°F) | 0" |
| 2024 | 28°C (83°F) | -- | 0" |
| 2023 | 29°C (85°F) | 17°C (62°F) | -- |
| 2022 | 29°C (85°F) | 19°C (67°F) | 0" |
| 2021 | 27°C (81°F) | 18°C (64°F) | -- |
| 2020 | -- | 22°C (72°F) | -- |
| 2019 | -- | 19°C (67°F) | -- |
| 2018 | -- | 19°C (67°F) | 1.98" |
| 2017 | -- | 21°C (69°F) | -- |
| 2016 | 29°C (85°F) | 19°C (66°F) | 0" |
| 2015 | 27°C (81°F) | 20°C (68°F) | 0" |
| 2014 | 28°C (83°F) | -- | 0" |
| 2013 | 27°C (80°F) | 9°C (49°F) | 0" |
| 2012 | 34°C (94°F) | 16°C (61°F) | 0" |
| 2011 | 29°C (85°F) | 17°C (63°F) | 0" |
| 2010 | 27°C (81°F) | 15°C (59°F) | 0" |
| 2009 | 25°C (77°F) | 16°C (61°F) | 0" |
| 2008 | 36°C (97°F) | 18°C (65°F) | 0" |
| 2007 | 27°C (80°F) | 12°C (54°F) | 0" |
| 2006 | 28°C (82°F) | 13°C (55°F) | 0" |
| 2005 | 29°C (84°F) | 16°C (61°F) | 0" |
| 2004 | 28°C (82°F) | 12°C (53°F) | 0" |
| 2003 | 21°C (70°F) | 16°C (61°F) | 0.1" |
| 2002 | 22°C (72°F) | 14°C (58°F) | 1.9" |
| 2001 | 26°C (79°F) | 16°C (60°F) | -- |
| 2000 | 26°C (78°F) | 17°C (63°F) | -- |
| 1999 | 25°C (77°F) | 15°C (59°F) | -- |
| 1998 | 31°C (87°F) | 18°C (65°F) | -- |
| 1997 | 24°C (76°F) | 15°C (59°F) | -- |
| 1996 | 21°C (69°F) | 12°C (53°F) | 0.7" |
| 1995 | 28°C (82°F) | 18°C (65°F) | 0" |
| 1994 | 31°C (87°F) | 20°C (68°F) | -- |
| 1993 | 26°C (79°F) | 17°C (63°F) | -- |
| 1992 | 26°C (78°F) | 14°C (58°F) | -- |
| 1991 | 24°C (75°F) | 18°C (64°F) | -- |
| 1990 | 20°C (68°F) | 11°C (52°F) | 0.5" |
| 1989 | 24°C (76°F) | 13°C (56°F) | -- |
| 1988 | 29°C (84°F) | 15°C (59°F) | -- |
| 1987 | 27°C (81°F) | 17°C (62°F) | -- |
| 1986 | 29°C (85°F) | 18°C (65°F) | -- |
| 1985 | 22°C (72°F) | 11°C (52°F) | -- |
| 1984 | 28°C (83°F) | 16°C (60°F) | -- |
| 1983 | 26°C (79°F) | 17°C (62°F) | -- |
| 1982 | 27°C (80°F) | 16°C (60°F) | -- |
| 1981 | 26°C (78°F) | 13°C (56°F) | -- |
| 1980 | 22°C (72°F) | 13°C (56°F) | -- |
| 1979 | 24°C (76°F) | 17°C (63°F) | -- |
| 1978 | 26°C (79°F) | 18°C (65°F) | -- |
| 1977 | 23°C (74°F) | 16°C (60°F) | 0.2" |
| 1976 | 26°C (79°F) | 16°C (60°F) | -- |
| 1975 | 27°C (80°F) | 15°C (59°F) | -- |
| 1974 | 25°C (77°F) | 15°C (59°F) | -- |
| 1973 | 22°C (72°F) | 11°C (52°F) | -- |
| 1972 | 24°C (76°F) | 12°C (54°F) | -- |
| 1971 | 26°C (78°F) | 17°C (62°F) | -- |