Weather on September 17 in Istanbul
Historical weather data for September 17 in Istanbul, Turkey
Based on 55 years of data from ISTANBUL
About This Date
September 17th in Istanbul, Turkey typically brings pleasant fall weather, with average highs around 26°C and lows near 16°C. Over 55 years of records, the warmest September 17th was in 2022 (27°C average), while the coldest was 1979 (14°C) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 13% of September 17th dates historically, with the wettest September 17th recording 3.13" of rain. The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for September 17th in Istanbul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 23°C (73°F) | 17°C (62°F) | -- |
| 2025 | 29°C (85°F) | 14°C (57°F) | 0 mm |
| 2024 | 27°C (81°F) | 19°C (66°F) | 1 mm |
| 2023 | 29°C (85°F) | -- | -- |
| 2022 | 33°C (91°F) | 22°C (71°F) | -- |
| 2021 | 28°C (82°F) | 16°C (61°F) | -- |
| 2020 | -- | 21°C (70°F) | -- |
| 2019 | -- | 17°C (62°F) | -- |
| 2017 | 28°C (83°F) | -- | 0 mm |
| 2016 | 29°C (85°F) | 18°C (64°F) | 0 mm |
| 2015 | 29°C (84°F) | 20°C (68°F) | 0 mm |
| 2014 | 26°C (79°F) | -- | 0 mm |
| 2013 | -- | 17°C (63°F) | 0 mm |
| 2012 | 29°C (85°F) | 21°C (70°F) | 0 mm |
| 2011 | 33°C (92°F) | 18°C (65°F) | 0 mm |
| 2010 | 27°C (80°F) | 16°C (61°F) | 0 mm |
| 2009 | 27°C (81°F) | 14°C (57°F) | 0 mm |
| 2008 | 29°C (84°F) | -- | 0 mm |
| 2007 | 29°C (84°F) | 13°C (55°F) | 0 mm |
| 2006 | 29°C (84°F) | 12°C (54°F) | 0 mm |
| 2005 | 28°C (83°F) | 15°C (59°F) | 80 mm |
| 2004 | 26°C (79°F) | 12°C (54°F) | 0 mm |
| 2003 | 23°C (73°F) | 14°C (58°F) | 7 mm |
| 2002 | 22°C (71°F) | 15°C (59°F) | 11 mm |
| 2001 | 30°C (86°F) | 17°C (62°F) | -- |
| 2000 | 26°C (78°F) | 17°C (63°F) | -- |
| 1999 | 26°C (78°F) | 15°C (59°F) | -- |
| 1998 | 25°C (77°F) | 13°C (56°F) | -- |
| 1997 | 22°C (71°F) | 17°C (62°F) | -- |
| 1996 | 22°C (72°F) | 14°C (57°F) | -- |
| 1995 | 28°C (83°F) | 18°C (65°F) | -- |
| 1994 | 30°C (86°F) | 21°C (69°F) | -- |
| 1993 | 30°C (86°F) | 19°C (67°F) | -- |
| 1992 | 25°C (77°F) | 14°C (58°F) | -- |
| 1991 | 23°C (73°F) | 18°C (65°F) | -- |
| 1990 | 22°C (72°F) | 12°C (54°F) | -- |
| 1989 | 23°C (73°F) | 16°C (61°F) | -- |
| 1988 | 26°C (79°F) | 18°C (65°F) | -- |
| 1987 | 27°C (80°F) | 18°C (64°F) | -- |
| 1986 | 28°C (83°F) | 19°C (66°F) | -- |
| 1985 | 25°C (77°F) | 16°C (60°F) | -- |
| 1984 | 27°C (80°F) | 17°C (63°F) | -- |
| 1983 | 27°C (81°F) | 16°C (60°F) | -- |
| 1982 | 26°C (79°F) | 16°C (60°F) | -- |
| 1981 | 21°C (70°F) | 11°C (52°F) | 0 mm |
| 1980 | 21°C (70°F) | 12°C (53°F) | -- |
| 1979 | 18°C (65°F) | 11°C (52°F) | 20 mm |
| 1978 | 21°C (69°F) | 16°C (60°F) | 0 mm |
| 1977 | 27°C (80°F) | 14°C (58°F) | -- |
| 1976 | 29°C (85°F) | 15°C (59°F) | -- |
| 1975 | 25°C (77°F) | 14°C (57°F) | -- |
| 1974 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 1973 | 24°C (76°F) | 12°C (53°F) | -- |
| 1972 | 35°C (95°F) | 18°C (65°F) | -- |
| 1971 | 25°C (77°F) | 18°C (65°F) | -- |