Weather on September 20 in Colombo
Historical weather data for September 20 in Colombo, Sri Lanka
Avg High22°C (72°F)
Avg Low17°C (62°F)
Warmest202529°C
Coldest198614°C
Based on 51 years of data from COLOMBO
About This Date
September 20th in Colombo, Sri Lanka typically brings pleasant fall weather, with average highs around 22°C and lows near 17°C. Over 51 years of records, the warmest September 20th was in 2025 (29°C average), while the coldest was 1986 (14°C) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 20th dates historically, with the wettest September 20th recording 7.06" of rain.
Planning for September 20th in Colombo? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 32°C (90°F) | 27°C (81°F) | -- |
| 2023 | 30°C (86°F) | 24°C (75°F) | 179 mm |
| 2022 | -- | 24°C (76°F) | 0 mm |
| 2021 | 31°C (87°F) | -- | 0 mm |
| 2020 | 31°C (87°F) | -- | 0 mm |
| 2019 | 31°C (87°F) | 24°C (76°F) | 27 mm |
| 2018 | -- | 28°C (82°F) | 21 mm |
| 2016 | 31°C (88°F) | 27°C (81°F) | 0 mm |
| 2015 | 31°C (88°F) | 25°C (77°F) | 10 mm |
| 2014 | 31°C (87°F) | -- | 0 mm |
| 2013 | 31°C (87°F) | 26°C (79°F) | 17 mm |
| 2012 | 30°C (86°F) | 25°C (77°F) | 12 mm |
| 2011 | 31°C (87°F) | 27°C (80°F) | 0 mm |
| 2010 | 31°C (87°F) | -- | 3 mm |
| 2009 | 31°C (87°F) | -- | 10 mm |
| 2008 | 31°C (87°F) | -- | 0 mm |
| 2005 | 18°C (64°F) | -- | 0 mm |
| 2004 | 18°C (65°F) | 14°C (58°F) | 6 mm |
| 2003 | 19°C (67°F) | 14°C (58°F) | -- |
| 2002 | 21°C (69°F) | 12°C (54°F) | -- |
| 2001 | 17°C (62°F) | 14°C (57°F) | 3 mm |
| 2000 | 17°C (62°F) | 14°C (57°F) | -- |
| 1999 | 20°C (68°F) | 13°C (56°F) | -- |
| 1998 | 18°C (65°F) | 13°C (55°F) | -- |
| 1997 | 18°C (65°F) | 14°C (58°F) | -- |
| 1996 | 17°C (62°F) | 14°C (58°F) | -- |
| 1995 | 19°C (67°F) | -- | -- |
| 1994 | -- | 13°C (56°F) | -- |
| 1993 | 18°C (65°F) | 13°C (55°F) | 0 mm |
| 1992 | 19°C (67°F) | 11°C (52°F) | 23 mm |
| 1991 | 19°C (66°F) | 13°C (56°F) | 0 mm |
| 1990 | 19°C (66°F) | 13°C (56°F) | 0 mm |
| 1989 | -- | 13°C (56°F) | -- |
| 1988 | 18°C (65°F) | 13°C (56°F) | -- |
| 1987 | 17°C (63°F) | 14°C (57°F) | -- |
| 1986 | 17°C (62°F) | 13°C (55°F) | 5 mm |
| 1985 | 18°C (64°F) | 13°C (55°F) | 1 mm |
| 1984 | 19°C (67°F) | 13°C (55°F) | -- |
| 1983 | 18°C (64°F) | 13°C (55°F) | 15 mm |
| 1982 | 20°C (68°F) | 14°C (57°F) | -- |
| 1981 | 18°C (64°F) | 13°C (56°F) | -- |
| 1980 | 20°C (68°F) | 11°C (52°F) | -- |
| 1979 | -- | 23°C (73°F) | -- |
| 1978 | -- | 26°C (79°F) | -- |
| 1977 | 21°C (70°F) | 12°C (53°F) | -- |
| 1976 | 19°C (67°F) | 10°C (50°F) | -- |
| 1975 | 19°C (67°F) | 11°C (52°F) | -- |
| 1974 | 20°C (68°F) | 14°C (57°F) | -- |
| 1973 | 18°C (65°F) | 13°C (55°F) | -- |
| 1972 | 22°C (71°F) | 13°C (56°F) | -- |
| 1971 | 18°C (64°F) | 14°C (57°F) | -- |