Weather on December 11 in Sydney
Historical weather data for December 11 in Sydney, Australia
Based on 55 years of data from SYDNEY (OBSERVATORY HILL)
About This Date
December 11th in Sydney, Australia typically brings pleasant winter weather, with average highs around 26°C and lows near 18°C. Over 55 years of records, the warmest December 11th was in 2015 (28°C average), while the coldest was 2021 (17°C) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 40% of December 11th dates historically, with the wettest December 11th recording 4.92" of rain. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for December 11th in Sydney? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 22°C (72°F) | 20°C (68°F) | -- |
| 2024 | 22°C (72°F) | 21°C (69°F) | -- |
| 2023 | 25°C (77°F) | 21°C (69°F) | -- |
| 2022 | 29°C (84°F) | 16°C (61°F) | -- |
| 2021 | 19°C (67°F) | 14°C (58°F) | -- |
| 2020 | 21°C (69°F) | 18°C (65°F) | -- |
| 2019 | 24°C (76°F) | 18°C (65°F) | 0 mm |
| 2018 | 24°C (75°F) | 20°C (68°F) | 0 mm |
| 2017 | 27°C (80°F) | 18°C (64°F) | 0 mm |
| 2016 | 26°C (79°F) | 20°C (68°F) | 0 mm |
| 2015 | 36°C (96°F) | 21°C (70°F) | 1 mm |
| 2014 | 22°C (72°F) | 21°C (69°F) | 25 mm |
| 2013 | 28°C (82°F) | 18°C (65°F) | 0 mm |
| 2012 | 22°C (71°F) | 17°C (62°F) | 2 mm |
| 2011 | 26°C (78°F) | 18°C (65°F) | 0 mm |
| 2010 | 27°C (80°F) | 17°C (63°F) | 0 mm |
| 2009 | 29°C (84°F) | 20°C (68°F) | 0 mm |
| 2008 | 20°C (68°F) | 17°C (63°F) | 9 mm |
| 2007 | 22°C (71°F) | 17°C (63°F) | 8 mm |
| 2006 | 28°C (82°F) | 18°C (65°F) | 0 mm |
| 2005 | 23°C (74°F) | 18°C (65°F) | 0 mm |
| 2004 | 29°C (85°F) | 18°C (65°F) | 70 mm |
| 2003 | 32°C (89°F) | 19°C (67°F) | 0 mm |
| 2002 | 22°C (71°F) | 14°C (58°F) | 125 mm |
| 2001 | 26°C (79°F) | 17°C (62°F) | 0 mm |
| 2000 | 30°C (86°F) | 19°C (66°F) | 0 mm |
| 1999 | 25°C (77°F) | 16°C (61°F) | 1 mm |
| 1998 | 28°C (83°F) | 22°C (71°F) | 0 mm |
| 1997 | 24°C (75°F) | 18°C (64°F) | 2 mm |
| 1996 | 23°C (73°F) | 18°C (65°F) | 1 mm |
| 1995 | 23°C (73°F) | 16°C (60°F) | 54 mm |
| 1994 | 22°C (72°F) | 13°C (55°F) | 0 mm |
| 1993 | 25°C (77°F) | 17°C (63°F) | 0 mm |
| 1992 | 22°C (72°F) | 14°C (58°F) | 0 mm |
| 1991 | 19°C (66°F) | 16°C (61°F) | 22 mm |
| 1990 | 23°C (74°F) | 14°C (58°F) | 4 mm |
| 1989 | 28°C (82°F) | 18°C (65°F) | 3 mm |
| 1988 | 26°C (79°F) | 22°C (71°F) | 64 mm |
| 1987 | 28°C (82°F) | 22°C (71°F) | 4 mm |
| 1986 | 26°C (78°F) | 16°C (61°F) | 0 mm |
| 1985 | 27°C (80°F) | 18°C (64°F) | 2 mm |
| 1984 | 23°C (73°F) | 16°C (60°F) | 10 mm |
| 1983 | 22°C (72°F) | 16°C (60°F) | 38 mm |
| 1982 | 23°C (74°F) | 17°C (62°F) | 0 mm |
| 1981 | 28°C (83°F) | 17°C (62°F) | 11 mm |
| 1980 | 30°C (86°F) | 19°C (67°F) | 0 mm |
| 1979 | 22°C (71°F) | 20°C (68°F) | 0 mm |
| 1978 | 23°C (74°F) | 17°C (62°F) | 0 mm |
| 1977 | 24°C (75°F) | 19°C (66°F) | 0 mm |
| 1976 | 34°C (94°F) | 21°C (70°F) | 0 mm |
| 1975 | 29°C (84°F) | 20°C (68°F) | 12 mm |
| 1974 | 27°C (80°F) | 18°C (65°F) | 0 mm |
| 1973 | 26°C (78°F) | 19°C (66°F) | 1 mm |
| 1972 | 36°C (97°F) | 19°C (66°F) | 0 mm |
| 1971 | 27°C (80°F) | 17°C (63°F) | 0 mm |