Weather on September 21 in Brisbane
Historical weather data for September 21 in Brisbane, Australia
Based on 55 years of data from BRISBANE REGIONAL OFFICE
About This Date
September 21st in Brisbane, Australia typically brings pleasant fall weather, with average highs around 26°C and lows near 14°C. Over 55 years of records, the warmest September 21st was in 1983 (24°C average), while the coldest was 1988 (16°C) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 21st dates historically, with the wettest September 21st recording 2.4" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for September 21st in Brisbane? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 28°C (82°F) | 14°C (58°F) | 0 mm |
| 2024 | 29°C (85°F) | 15°C (59°F) | 0 mm |
| 2023 | 32°C (90°F) | 16°C (60°F) | 0 mm |
| 2022 | 23°C (74°F) | 16°C (61°F) | 0 mm |
| 2021 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 2020 | 29°C (85°F) | 17°C (63°F) | 0 mm |
| 2019 | 27°C (80°F) | 17°C (62°F) | 11 mm |
| 2018 | 24°C (76°F) | 13°C (56°F) | 0 mm |
| 2017 | 26°C (79°F) | 15°C (59°F) | 0 mm |
| 2016 | 22°C (71°F) | 18°C (64°F) | 2 mm |
| 2015 | 24°C (76°F) | 14°C (58°F) | 4 mm |
| 2014 | 24°C (76°F) | 13°C (55°F) | 0 mm |
| 2013 | 25°C (77°F) | 11°C (52°F) | 0 mm |
| 2012 | 26°C (79°F) | 15°C (59°F) | 0 mm |
| 2011 | 25°C (77°F) | 16°C (60°F) | 0 mm |
| 2010 | 24°C (76°F) | 15°C (59°F) | 57 mm |
| 2009 | 29°C (85°F) | 17°C (63°F) | 0 mm |
| 2008 | 29°C (84°F) | 16°C (61°F) | 1 mm |
| 2007 | 26°C (78°F) | 12°C (54°F) | 1 mm |
| 2006 | 27°C (81°F) | 12°C (54°F) | 0 mm |
| 2005 | 24°C (76°F) | 16°C (60°F) | 0 mm |
| 2004 | 25°C (77°F) | 12°C (53°F) | 9 mm |
| 2003 | 26°C (78°F) | 14°C (58°F) | 0 mm |
| 2002 | 26°C (79°F) | 15°C (59°F) | 0 mm |
| 2001 | 25°C (77°F) | 13°C (55°F) | 0 mm |
| 2000 | 26°C (79°F) | 13°C (55°F) | 0 mm |
| 1999 | 21°C (70°F) | 13°C (56°F) | 4 mm |
| 1998 | 24°C (75°F) | 16°C (60°F) | 12 mm |
| 1997 | 27°C (81°F) | 14°C (58°F) | 3 mm |
| 1996 | 23°C (73°F) | 9°C (48°F) | 25 mm |
| 1995 | 26°C (79°F) | 18°C (64°F) | 16 mm |
| 1994 | 23°C (74°F) | 8°C (47°F) | 0 mm |
| 1993 | 24°C (76°F) | 16°C (60°F) | 0 mm |
| 1992 | 22°C (72°F) | 11°C (51°F) | 0 mm |
| 1991 | 27°C (81°F) | 5°C (41°F) | 0 mm |
| 1990 | 24°C (75°F) | 11°C (51°F) | 0 mm |
| 1989 | 23°C (73°F) | 14°C (58°F) | 0 mm |
| 1988 | 23°C (73°F) | 9°C (48°F) | 0 mm |
| 1987 | 26°C (78°F) | 14°C (57°F) | 0 mm |
| 1986 | 27°C (81°F) | 11°C (51°F) | 0 mm |
| 1985 | 26°C (78°F) | 15°C (59°F) | 56 mm |
| 1984 | 23°C (74°F) | 12°C (54°F) | 0 mm |
| 1983 | 32°C (90°F) | 16°C (61°F) | 0 mm |
| 1982 | 22°C (71°F) | 13°C (56°F) | 61 mm |
| 1981 | 27°C (80°F) | 17°C (62°F) | 1 mm |
| 1980 | 29°C (85°F) | 13°C (56°F) | 0 mm |
| 1979 | 23°C (73°F) | 14°C (58°F) | 0 mm |
| 1978 | 23°C (74°F) | 13°C (56°F) | 0 mm |
| 1977 | 23°C (73°F) | 15°C (59°F) | 0 mm |
| 1976 | 24°C (75°F) | 14°C (57°F) | 0 mm |
| 1975 | 24°C (76°F) | 15°C (59°F) | 0 mm |
| 1974 | 24°C (75°F) | 16°C (60°F) | 0 mm |
| 1973 | 24°C (75°F) | 18°C (65°F) | 0 mm |
| 1972 | 24°C (75°F) | 15°C (59°F) | 0 mm |
| 1971 | 29°C (85°F) | 19°C (66°F) | 0 mm |