Weather on September 20 in Istanbul
Historical weather data for September 20 in Istanbul, Turkey
Based on 55 years of data from ISTANBUL
About This Date
September 20th in Istanbul, Turkey typically brings pleasant fall weather, with average highs around 25°C and lows near 16°C. Over 55 years of records, the warmest September 20th was in 1994 (27°C average), while the coldest was 1971 (15°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 16% of September 20th dates historically, with the wettest September 20th recording 4.3" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Istanbul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 25°C (77°F) | 14°C (58°F) | 0" |
| 2024 | 27°C (80°F) | 18°C (65°F) | 0" |
| 2023 | 28°C (82°F) | 17°C (62°F) | -- |
| 2022 | 23°C (74°F) | -- | 0" |
| 2021 | 31°C (87°F) | 21°C (69°F) | -- |
| 2020 | -- | 19°C (67°F) | -- |
| 2019 | -- | 16°C (61°F) | -- |
| 2018 | 27°C (81°F) | 18°C (64°F) | 0" |
| 2017 | -- | 21°C (69°F) | -- |
| 2016 | 28°C (82°F) | -- | 0.3" |
| 2015 | 27°C (81°F) | 20°C (68°F) | 0" |
| 2014 | 26°C (78°F) | 16°C (60°F) | 0" |
| 2013 | -- | 17°C (62°F) | 0" |
| 2012 | 27°C (81°F) | 17°C (62°F) | 0" |
| 2011 | -- | 15°C (59°F) | 0" |
| 2010 | 29°C (84°F) | 14°C (57°F) | 0" |
| 2009 | 22°C (72°F) | 16°C (61°F) | 0.08" |
| 2008 | 23°C (73°F) | 14°C (57°F) | 0" |
| 2007 | 28°C (83°F) | 12°C (53°F) | 0" |
| 2006 | 27°C (81°F) | 16°C (60°F) | 0.03" |
| 2005 | -- | 19°C (66°F) | -- |
| 2004 | 28°C (83°F) | -- | 0" |
| 2003 | 24°C (76°F) | 13°C (55°F) | -- |
| 2002 | 23°C (74°F) | 13°C (55°F) | -- |
| 2001 | 27°C (80°F) | 20°C (68°F) | -- |
| 2000 | 28°C (82°F) | 20°C (68°F) | -- |
| 1999 | 23°C (74°F) | 18°C (65°F) | -- |
| 1998 | 22°C (72°F) | 18°C (64°F) | 0.8" |
| 1997 | 21°C (70°F) | 16°C (61°F) | 0" |
| 1996 | 23°C (74°F) | 16°C (61°F) | -- |
| 1995 | 23°C (74°F) | 14°C (58°F) | 0" |
| 1994 | 33°C (91°F) | 21°C (70°F) | 0" |
| 1993 | 23°C (73°F) | 17°C (62°F) | -- |
| 1992 | 24°C (76°F) | 14°C (58°F) | -- |
| 1991 | 20°C (68°F) | 14°C (58°F) | 1.8" |
| 1990 | 21°C (69°F) | 10°C (50°F) | 0.7" |
| 1989 | 23°C (74°F) | 16°C (61°F) | -- |
| 1988 | 25°C (77°F) | 15°C (59°F) | -- |
| 1987 | 27°C (81°F) | 15°C (59°F) | -- |
| 1986 | 21°C (69°F) | 17°C (62°F) | 0.1" |
| 1985 | 25°C (77°F) | 12°C (54°F) | -- |
| 1984 | 31°C (87°F) | 18°C (65°F) | -- |
| 1983 | 24°C (75°F) | 19°C (67°F) | 0" |
| 1982 | 26°C (78°F) | 17°C (63°F) | -- |
| 1981 | 25°C (77°F) | 13°C (56°F) | -- |
| 1980 | 22°C (72°F) | 13°C (56°F) | -- |
| 1979 | 26°C (78°F) | 13°C (55°F) | -- |
| 1978 | 26°C (78°F) | 13°C (56°F) | -- |
| 1977 | 31°C (87°F) | 17°C (62°F) | -- |
| 1976 | 21°C (69°F) | 11°C (52°F) | 4.3" |
| 1975 | 26°C (79°F) | 17°C (63°F) | -- |
| 1974 | 23°C (74°F) | 13°C (56°F) | -- |
| 1973 | 27°C (81°F) | 15°C (59°F) | -- |
| 1972 | 24°C (75°F) | 18°C (64°F) | -- |
| 1971 | 20°C (68°F) | 11°C (51°F) | 0.5" |