Weather on September 30 in Istanbul
Historical weather data for September 30 in Istanbul, Turkey
Based on 55 years of data from ISTANBUL
About This Date
September 30th in Istanbul, Turkey typically brings pleasant fall weather, with average highs around 23°C and lows near 14°C. Over 55 years of records, the warmest September 30th was in 2022 (25°C average), while the coldest was 1977 (13°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 31% of September 30th dates historically, with the wettest September 30th recording 4.6" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for September 30th in Istanbul? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 21°C (69°F) | 13°C (55°F) | -- |
| 2024 | 20°C (68°F) | 14°C (58°F) | 2.01" |
| 2023 | 25°C (77°F) | 18°C (65°F) | 0.15" |
| 2022 | 30°C (86°F) | 21°C (69°F) | -- |
| 2021 | 22°C (71°F) | 15°C (59°F) | 0.13" |
| 2020 | -- | 17°C (63°F) | 0.76" |
| 2019 | -- | 15°C (59°F) | -- |
| 2018 | 22°C (72°F) | -- | 0" |
| 2017 | -- | 17°C (62°F) | -- |
| 2016 | 28°C (82°F) | 14°C (58°F) | 0" |
| 2015 | 18°C (65°F) | -- | 4.6" |
| 2014 | 24°C (75°F) | 13°C (55°F) | 0" |
| 2013 | -- | 13°C (55°F) | 0" |
| 2012 | 30°C (86°F) | 14°C (58°F) | 0" |
| 2011 | 19°C (66°F) | -- | 1.09" |
| 2010 | 22°C (71°F) | -- | 1.7" |
| 2009 | 26°C (78°F) | 8°C (47°F) | 0" |
| 2008 | 19°C (67°F) | 12°C (53°F) | 0.08" |
| 2007 | 27°C (81°F) | 15°C (59°F) | 0" |
| 2006 | 24°C (75°F) | 16°C (61°F) | 1.07" |
| 2005 | 25°C (77°F) | 15°C (59°F) | 0.56" |
| 2004 | 26°C (79°F) | 18°C (64°F) | 0" |
| 2003 | 21°C (69°F) | 17°C (63°F) | -- |
| 2002 | 23°C (73°F) | 18°C (64°F) | -- |
| 2001 | 24°C (75°F) | 13°C (56°F) | -- |
| 2000 | 22°C (71°F) | 13°C (56°F) | -- |
| 1999 | 23°C (74°F) | 20°C (68°F) | -- |
| 1998 | 21°C (70°F) | 18°C (64°F) | 0.4" |
| 1997 | 20°C (68°F) | 12°C (53°F) | -- |
| 1996 | 18°C (64°F) | 12°C (54°F) | 0.3" |
| 1995 | 19°C (67°F) | 13°C (56°F) | 0.6" |
| 1994 | 27°C (81°F) | 21°C (69°F) | -- |
| 1993 | 21°C (70°F) | 14°C (58°F) | -- |
| 1992 | 26°C (79°F) | 12°C (53°F) | -- |
| 1991 | 31°C (87°F) | 18°C (65°F) | -- |
| 1990 | 21°C (69°F) | 10°C (50°F) | -- |
| 1989 | 24°C (76°F) | 18°C (64°F) | -- |
| 1988 | 24°C (75°F) | 14°C (57°F) | -- |
| 1987 | 19°C (67°F) | 16°C (61°F) | 0.1" |
| 1986 | 21°C (69°F) | 11°C (51°F) | -- |
| 1985 | 20°C (68°F) | 12°C (53°F) | -- |
| 1984 | 26°C (78°F) | 13°C (55°F) | -- |
| 1983 | 24°C (76°F) | 13°C (55°F) | -- |
| 1982 | 26°C (79°F) | 17°C (62°F) | -- |
| 1981 | 24°C (76°F) | 17°C (62°F) | -- |
| 1980 | 19°C (66°F) | 12°C (53°F) | 1.5" |
| 1979 | 25°C (77°F) | 17°C (62°F) | -- |
| 1978 | 20°C (68°F) | 10°C (50°F) | 1.1" |
| 1977 | 13°C (56°F) | 12°C (53°F) | 0" |
| 1976 | 24°C (76°F) | 14°C (57°F) | -- |
| 1975 | 26°C (78°F) | 14°C (58°F) | -- |
| 1974 | 28°C (82°F) | 12°C (53°F) | -- |
| 1973 | 25°C (77°F) | 18°C (64°F) | -- |
| 1972 | 16°C (61°F) | 12°C (53°F) | 2.1" |
| 1971 | 23°C (73°F) | 13°C (56°F) | -- |