Weather on September 12 in Colombo
Historical weather data for September 12 in Colombo, Sri Lanka
Based on 53 years of data from COLOMBO
About This Date
September 12th in Colombo, Sri Lanka typically brings pleasant fall weather, with average highs around 23°C and lows near 17°C. Over 53 years of records, the warmest September 12th was in 2025 (29°C average), while the coldest was 1971 (14°C) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 26% of September 12th dates historically, with the wettest September 12th recording 5.82" of rain. The last decade has been 21.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 21.6°F warmer on this date compared to 20-30 years ago.
Planning for September 12th in Colombo? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 31°C (87°F) | 28°C (82°F) | -- |
| 2024 | 31°C (87°F) | 25°C (77°F) | -- |
| 2023 | 31°C (88°F) | 24°C (76°F) | 62 mm |
| 2022 | 31°C (87°F) | 27°C (80°F) | 0 mm |
| 2021 | 32°C (89°F) | -- | 0 mm |
| 2020 | 29°C (85°F) | -- | 12 mm |
| 2019 | 27°C (81°F) | 24°C (75°F) | 148 mm |
| 2018 | 32°C (89°F) | 26°C (78°F) | 0 mm |
| 2017 | 32°C (89°F) | -- | 0 mm |
| 2016 | -- | 27°C (80°F) | 0 mm |
| 2015 | 31°C (88°F) | 24°C (75°F) | 13 mm |
| 2014 | 31°C (88°F) | 27°C (80°F) | 1 mm |
| 2013 | 29°C (85°F) | 24°C (76°F) | 86 mm |
| 2012 | 31°C (87°F) | 27°C (80°F) | 0 mm |
| 2011 | 29°C (84°F) | 26°C (79°F) | 13 mm |
| 2010 | 31°C (88°F) | -- | 0 mm |
| 2009 | 31°C (87°F) | 27°C (80°F) | 0 mm |
| 2008 | 31°C (87°F) | -- | 52 mm |
| 2007 | 18°C (65°F) | -- | 0 mm |
| 2004 | 18°C (64°F) | 14°C (58°F) | 39 mm |
| 2003 | 21°C (69°F) | 12°C (53°F) | 0 mm |
| 2002 | 19°C (66°F) | 12°C (54°F) | 0 mm |
| 2001 | 22°C (71°F) | 12°C (54°F) | -- |
| 2000 | 19°C (67°F) | 12°C (53°F) | -- |
| 1999 | 20°C (68°F) | 13°C (56°F) | -- |
| 1998 | 18°C (65°F) | 14°C (57°F) | 0 mm |
| 1997 | 21°C (70°F) | 12°C (53°F) | -- |
| 1996 | 16°C (61°F) | 13°C (56°F) | 36 mm |
| 1995 | 22°C (71°F) | 12°C (53°F) | 13 mm |
| 1994 | 31°C (87°F) | -- | 33 mm |
| 1993 | 21°C (70°F) | 12°C (53°F) | 0 mm |
| 1992 | 21°C (69°F) | 12°C (54°F) | 0 mm |
| 1991 | 21°C (69°F) | 13°C (56°F) | -- |
| 1990 | -- | 14°C (57°F) | 0 mm |
| 1989 | -- | 13°C (55°F) | -- |
| 1988 | 19°C (67°F) | 13°C (55°F) | -- |
| 1987 | 24°C (75°F) | 11°C (52°F) | -- |
| 1986 | 18°C (64°F) | 13°C (56°F) | -- |
| 1985 | 18°C (64°F) | 13°C (55°F) | 20 mm |
| 1984 | 19°C (67°F) | 9°C (48°F) | 0 mm |
| 1983 | 18°C (64°F) | 12°C (54°F) | 1 mm |
| 1982 | 17°C (63°F) | 13°C (56°F) | 0 mm |
| 1981 | 17°C (62°F) | 13°C (55°F) | -- |
| 1980 | 19°C (67°F) | 12°C (53°F) | -- |
| 1979 | 18°C (65°F) | 12°C (54°F) | -- |
| 1978 | -- | 26°C (79°F) | -- |
| 1977 | 19°C (67°F) | 14°C (57°F) | -- |
| 1976 | 20°C (68°F) | 11°C (51°F) | -- |
| 1975 | 18°C (65°F) | 13°C (55°F) | -- |
| 1974 | 18°C (65°F) | 13°C (55°F) | -- |
| 1973 | 21°C (69°F) | 11°C (52°F) | -- |
| 1972 | 18°C (65°F) | 12°C (54°F) | -- |
| 1971 | 18°C (65°F) | 11°C (51°F) | -- |