Weather on September 23 in Istanbul
Historical weather data for September 23 in Istanbul, Turkey
Based on 55 years of data from ISTANBUL
About This Date
September 23rd in Istanbul, Turkey typically brings pleasant fall weather, with average highs around 24°C and lows near 15°C. Over 55 years of records, the warmest September 23rd was in 2023 (26°C average), while the coldest was 2021 (14°C) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 31% of September 23rd dates historically, with the wettest September 23rd recording 0.79" of rain. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for September 23rd in Istanbul? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 18°C (65°F) | 11°C (52°F) | -- |
| 2025 | 30°C (86°F) | 15°C (59°F) | 0 mm |
| 2024 | 24°C (76°F) | 17°C (62°F) | 2 mm |
| 2023 | 33°C (92°F) | 18°C (65°F) | -- |
| 2022 | 22°C (71°F) | 14°C (57°F) | 9 mm |
| 2021 | 17°C (62°F) | 13°C (55°F) | 7 mm |
| 2020 | -- | 18°C (65°F) | -- |
| 2019 | -- | 12°C (54°F) | -- |
| 2018 | 28°C (83°F) | 17°C (63°F) | -- |
| 2017 | -- | 14°C (58°F) | 4 mm |
| 2016 | 22°C (71°F) | 13°C (56°F) | 1 mm |
| 2015 | 28°C (83°F) | -- | 1 mm |
| 2014 | 27°C (80°F) | -- | 10 mm |
| 2013 | 23°C (74°F) | -- | 0 mm |
| 2012 | 26°C (79°F) | 9°C (49°F) | 0 mm |
| 2011 | 23°C (74°F) | -- | 8 mm |
| 2010 | 27°C (80°F) | 18°C (64°F) | 0 mm |
| 2009 | 24°C (76°F) | 12°C (53°F) | 0 mm |
| 2007 | 17°C (63°F) | 16°C (61°F) | 0 mm |
| 2006 | 21°C (69°F) | 16°C (60°F) | 1 mm |
| 2005 | 21°C (70°F) | -- | 0 mm |
| 2004 | 28°C (82°F) | 15°C (59°F) | 0 mm |
| 2003 | 26°C (79°F) | 16°C (61°F) | -- |
| 2002 | 29°C (84°F) | 16°C (61°F) | -- |
| 2001 | 27°C (80°F) | 17°C (63°F) | -- |
| 2000 | 27°C (80°F) | 21°C (70°F) | -- |
| 1999 | 24°C (76°F) | 16°C (60°F) | -- |
| 1998 | 17°C (63°F) | 14°C (58°F) | 20 mm |
| 1997 | 21°C (70°F) | 12°C (54°F) | 0 mm |
| 1996 | 31°C (87°F) | 16°C (60°F) | -- |
| 1995 | 22°C (72°F) | 15°C (59°F) | -- |
| 1994 | 28°C (82°F) | 20°C (68°F) | -- |
| 1993 | 22°C (72°F) | 12°C (54°F) | -- |
| 1992 | 23°C (73°F) | 15°C (59°F) | -- |
| 1991 | 25°C (77°F) | 14°C (57°F) | 0 mm |
| 1990 | 27°C (81°F) | 16°C (60°F) | -- |
| 1989 | 24°C (76°F) | 16°C (60°F) | -- |
| 1988 | 26°C (78°F) | 18°C (64°F) | 1 mm |
| 1987 | 22°C (71°F) | 11°C (52°F) | -- |
| 1986 | 24°C (76°F) | 13°C (56°F) | 0 mm |
| 1985 | 23°C (73°F) | 15°C (59°F) | -- |
| 1984 | 29°C (84°F) | 21°C (70°F) | -- |
| 1983 | 23°C (74°F) | 17°C (62°F) | 6 mm |
| 1982 | 28°C (82°F) | 14°C (58°F) | -- |
| 1981 | 23°C (74°F) | 18°C (64°F) | -- |
| 1980 | 23°C (73°F) | 12°C (54°F) | -- |
| 1979 | 27°C (80°F) | 16°C (60°F) | -- |
| 1978 | 21°C (69°F) | 12°C (54°F) | 7 mm |
| 1977 | 26°C (78°F) | 17°C (62°F) | -- |
| 1976 | 19°C (66°F) | 13°C (56°F) | 0 mm |
| 1975 | 26°C (78°F) | 16°C (61°F) | 8 mm |
| 1974 | 29°C (85°F) | 14°C (58°F) | -- |
| 1973 | 26°C (79°F) | 14°C (57°F) | -- |
| 1972 | 22°C (72°F) | 14°C (58°F) | -- |
| 1971 | 19°C (66°F) | 16°C (61°F) | 2 mm |