Weather on December 9 in Sydney
Historical weather data for December 9 in Sydney, Australia
Based on 55 years of data from SYDNEY (OBSERVATORY HILL)
About This Date
December 9th in Sydney, Australia typically brings pleasant winter weather, with average highs around 25°C and lows near 18°C. Over 55 years of records, the warmest December 9th was in 2023 (28°C average), while the coldest was 1994 (16°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 38% of December 9th dates historically, with the wettest December 9th recording 2.98" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 9th in Sydney? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 26°C (78°F) | 20°C (68°F) | -- |
| 2024 | 22°C (72°F) | 19°C (67°F) | -- |
| 2023 | 36°C (96°F) | 22°C (71°F) | -- |
| 2022 | 18°C (65°F) | 16°C (60°F) | -- |
| 2021 | 21°C (70°F) | 17°C (62°F) | -- |
| 2020 | 22°C (71°F) | 16°C (61°F) | -- |
| 2019 | 24°C (76°F) | 21°C (69°F) | 0" |
| 2018 | 26°C (79°F) | 19°C (66°F) | 0" |
| 2017 | 24°C (75°F) | 18°C (65°F) | 0" |
| 2016 | 28°C (82°F) | 18°C (65°F) | 0.04" |
| 2015 | 33°C (92°F) | 21°C (70°F) | 0.08" |
| 2014 | 24°C (75°F) | 21°C (70°F) | 0.04" |
| 2013 | 30°C (86°F) | 19°C (67°F) | 0" |
| 2012 | 27°C (81°F) | 21°C (69°F) | 0" |
| 2011 | 24°C (75°F) | 17°C (62°F) | 0.06" |
| 2010 | 31°C (87°F) | 22°C (72°F) | 0" |
| 2009 | 24°C (75°F) | 18°C (65°F) | 0.06" |
| 2008 | 26°C (79°F) | 17°C (63°F) | 0.18" |
| 2007 | 27°C (80°F) | 20°C (68°F) | 0.02" |
| 2006 | 24°C (75°F) | 19°C (66°F) | 0.2" |
| 2005 | 26°C (78°F) | 18°C (65°F) | 0" |
| 2004 | 26°C (78°F) | 21°C (69°F) | 0.02" |
| 2003 | 24°C (75°F) | 16°C (61°F) | 0" |
| 2002 | 26°C (78°F) | 18°C (64°F) | 0" |
| 2001 | 22°C (72°F) | 16°C (60°F) | 0.5" |
| 2000 | 23°C (73°F) | 20°C (68°F) | 0" |
| 1999 | 26°C (79°F) | 22°C (71°F) | 0.08" |
| 1998 | 26°C (78°F) | 18°C (65°F) | 0.1" |
| 1997 | 24°C (76°F) | 21°C (70°F) | 0" |
| 1996 | 30°C (86°F) | 14°C (57°F) | 0" |
| 1995 | 24°C (75°F) | 18°C (65°F) | 0" |
| 1994 | 18°C (65°F) | 13°C (56°F) | 2.98" |
| 1993 | 23°C (74°F) | 18°C (65°F) | 0" |
| 1992 | 21°C (70°F) | 15°C (59°F) | 0.5" |
| 1991 | 26°C (78°F) | 18°C (65°F) | 0" |
| 1990 | 27°C (80°F) | 22°C (71°F) | 1.84" |
| 1989 | 24°C (76°F) | 18°C (64°F) | 0" |
| 1988 | 27°C (81°F) | 18°C (64°F) | 0.12" |
| 1987 | 24°C (75°F) | 18°C (65°F) | 0" |
| 1986 | 20°C (68°F) | 14°C (58°F) | 0" |
| 1985 | 33°C (91°F) | 21°C (70°F) | 0.08" |
| 1984 | 20°C (68°F) | 13°C (56°F) | 0.68" |
| 1983 | 22°C (72°F) | 16°C (61°F) | 0" |
| 1982 | 26°C (78°F) | 16°C (60°F) | 0" |
| 1981 | 26°C (78°F) | 19°C (67°F) | 0" |
| 1980 | 24°C (76°F) | 19°C (67°F) | 0" |
| 1979 | 24°C (76°F) | 18°C (64°F) | 0.02" |
| 1978 | 22°C (72°F) | 19°C (66°F) | 0" |
| 1977 | 27°C (80°F) | 18°C (64°F) | 0" |
| 1976 | 26°C (79°F) | 20°C (68°F) | 0" |
| 1975 | 27°C (80°F) | 20°C (68°F) | 0" |
| 1974 | 24°C (76°F) | 16°C (60°F) | 0" |
| 1973 | 25°C (77°F) | 18°C (65°F) | 0.81" |
| 1972 | 23°C (74°F) | 16°C (61°F) | 0" |
| 1971 | 23°C (74°F) | 18°C (65°F) | 1.47" |