Weather on September 12 in Istanbul
Historical weather data for September 12 in Istanbul, Turkey
Based on 56 years of data from ISTANBUL
About This Date
September 12th in Istanbul, Turkey typically brings pleasant fall weather, with average highs around 26°C and lows near 16°C. Over 56 years of records, the warmest September 12th was in 1993 (26°C average), while the coldest was 1990 (16°C) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 12th dates historically, with the wettest September 12th recording 1.14" of rain. The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.
Planning for September 12th in Istanbul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 31°C (87°F) | 17°C (63°F) | -- |
| 2025 | 30°C (86°F) | 19°C (66°F) | 1 mm |
| 2024 | 31°C (87°F) | -- | 0 mm |
| 2023 | 28°C (83°F) | 18°C (65°F) | 0 mm |
| 2022 | 24°C (76°F) | -- | 3 mm |
| 2021 | 27°C (80°F) | 14°C (58°F) | 9 mm |
| 2020 | -- | 22°C (71°F) | -- |
| 2019 | -- | 20°C (68°F) | -- |
| 2018 | -- | 16°C (61°F) | 2 mm |
| 2017 | -- | 21°C (70°F) | -- |
| 2016 | 28°C (82°F) | 22°C (71°F) | 0 mm |
| 2015 | 29°C (85°F) | -- | 17 mm |
| 2014 | 31°C (88°F) | 20°C (68°F) | 0 mm |
| 2013 | -- | 14°C (58°F) | 0 mm |
| 2012 | 27°C (81°F) | 13°C (55°F) | 0 mm |
| 2011 | 31°C (87°F) | 13°C (55°F) | 0 mm |
| 2010 | 26°C (79°F) | 16°C (60°F) | 0 mm |
| 2009 | -- | 18°C (65°F) | 3 mm |
| 2008 | 31°C (88°F) | 14°C (58°F) | 0 mm |
| 2007 | 28°C (82°F) | 13°C (55°F) | 0 mm |
| 2006 | 27°C (80°F) | 15°C (59°F) | 0 mm |
| 2005 | 29°C (85°F) | 12°C (54°F) | 0 mm |
| 2004 | 25°C (77°F) | 7°C (45°F) | 0 mm |
| 2003 | 25°C (77°F) | 18°C (64°F) | 3 mm |
| 2002 | 24°C (75°F) | 16°C (60°F) | -- |
| 2001 | 23°C (74°F) | 16°C (60°F) | 29 mm |
| 2000 | 22°C (71°F) | 19°C (66°F) | -- |
| 1999 | 24°C (75°F) | 18°C (65°F) | -- |
| 1998 | 27°C (80°F) | 18°C (65°F) | -- |
| 1997 | 22°C (72°F) | 12°C (53°F) | -- |
| 1996 | 25°C (77°F) | 13°C (56°F) | -- |
| 1995 | 26°C (79°F) | 17°C (62°F) | 0 mm |
| 1994 | 31°C (87°F) | 19°C (67°F) | -- |
| 1993 | 33°C (92°F) | 18°C (64°F) | -- |
| 1992 | 24°C (76°F) | 14°C (57°F) | -- |
| 1991 | 23°C (73°F) | 15°C (59°F) | 1 mm |
| 1990 | 19°C (67°F) | 13°C (56°F) | -- |
| 1989 | 25°C (77°F) | 18°C (64°F) | -- |
| 1988 | 23°C (73°F) | 12°C (54°F) | -- |
| 1987 | 26°C (79°F) | 16°C (61°F) | -- |
| 1986 | 28°C (82°F) | 18°C (64°F) | -- |
| 1985 | 23°C (74°F) | 13°C (55°F) | -- |
| 1984 | 24°C (76°F) | 19°C (66°F) | -- |
| 1983 | 26°C (79°F) | 14°C (58°F) | -- |
| 1982 | 28°C (83°F) | 21°C (69°F) | -- |
| 1981 | 26°C (78°F) | 14°C (58°F) | -- |
| 1980 | 21°C (70°F) | 16°C (60°F) | -- |
| 1979 | 26°C (78°F) | 16°C (60°F) | -- |
| 1978 | 27°C (80°F) | 16°C (61°F) | -- |
| 1977 | 22°C (72°F) | 16°C (61°F) | 1 mm |
| 1976 | 26°C (79°F) | 14°C (57°F) | -- |
| 1975 | 26°C (78°F) | 13°C (56°F) | -- |
| 1974 | 26°C (78°F) | 19°C (66°F) | -- |
| 1973 | 22°C (72°F) | 16°C (61°F) | 6 mm |
| 1972 | 26°C (78°F) | 14°C (58°F) | -- |
| 1971 | 28°C (82°F) | 15°C (59°F) | -- |