Weather on September 17 in Sydney
Historical weather data for September 17 in Sydney, Australia
Based on 55 years of data from SYDNEY (OBSERVATORY HILL)
About This Date
September 17th in Sydney, Australia typically brings pleasant fall weather, with average highs around 22°C and lows near 12°C. Over 55 years of records, the warmest September 17th was in 1996 (24°C average), while the coldest was 2019 (12°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 25% of September 17th dates historically, with the wettest September 17th recording 5.22" 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 September 17th in Sydney? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 23°C (73°F) | 19°C (66°F) | -- |
| 2024 | 18°C (65°F) | 12°C (53°F) | -- |
| 2023 | 29°C (85°F) | 18°C (65°F) | -- |
| 2022 | 22°C (71°F) | 17°C (62°F) | -- |
| 2021 | 21°C (70°F) | 12°C (53°F) | -- |
| 2020 | 30°C (86°F) | 16°C (60°F) | -- |
| 2019 | 14°C (58°F) | 9°C (48°F) | 1.92" |
| 2018 | 18°C (65°F) | 8°C (46°F) | 0" |
| 2017 | 18°C (65°F) | 8°C (47°F) | 0" |
| 2016 | 22°C (72°F) | 11°C (51°F) | 0" |
| 2015 | 20°C (68°F) | 12°C (54°F) | 0" |
| 2014 | 22°C (72°F) | 13°C (56°F) | -- |
| 2013 | 24°C (75°F) | 15°C (59°F) | 3.22" |
| 2012 | 21°C (70°F) | 14°C (58°F) | 0" |
| 2011 | 26°C (78°F) | 14°C (58°F) | 0" |
| 2010 | 19°C (67°F) | 9°C (49°F) | 0" |
| 2009 | 32°C (90°F) | 14°C (58°F) | 0" |
| 2008 | 16°C (61°F) | 11°C (51°F) | 0" |
| 2007 | 19°C (66°F) | 14°C (57°F) | 0" |
| 2006 | 22°C (71°F) | 12°C (54°F) | 0" |
| 2005 | 19°C (66°F) | 9°C (48°F) | 0.8" |
| 2004 | 22°C (72°F) | 11°C (52°F) | 0" |
| 2003 | 25°C (77°F) | 13°C (56°F) | 0" |
| 2002 | 19°C (67°F) | 17°C (63°F) | 0.04" |
| 2001 | 22°C (71°F) | 15°C (59°F) | 0" |
| 2000 | 26°C (79°F) | 11°C (52°F) | 0" |
| 1999 | 21°C (69°F) | 13°C (55°F) | 0.86" |
| 1998 | 21°C (69°F) | 9°C (48°F) | 0" |
| 1997 | 16°C (61°F) | 12°C (54°F) | 0.82" |
| 1996 | 28°C (82°F) | 20°C (68°F) | 0" |
| 1995 | 16°C (60°F) | 14°C (58°F) | 1.12" |
| 1994 | 19°C (67°F) | 9°C (48°F) | 0" |
| 1993 | 22°C (71°F) | 12°C (53°F) | 0" |
| 1992 | 20°C (68°F) | 12°C (53°F) | 0.02" |
| 1991 | 23°C (74°F) | 17°C (62°F) | 0" |
| 1990 | 17°C (63°F) | 9°C (49°F) | 0.04" |
| 1989 | 19°C (67°F) | 8°C (47°F) | 0" |
| 1988 | 23°C (74°F) | 16°C (60°F) | 5.22" |
| 1987 | 21°C (70°F) | 11°C (52°F) | 0" |
| 1986 | 19°C (67°F) | 13°C (55°F) | 0.24" |
| 1985 | 19°C (67°F) | 12°C (53°F) | 0" |
| 1984 | 18°C (65°F) | 14°C (57°F) | 0" |
| 1983 | 20°C (68°F) | 11°C (52°F) | 0" |
| 1982 | 27°C (80°F) | 13°C (55°F) | 0" |
| 1981 | 26°C (79°F) | 13°C (56°F) | 0" |
| 1980 | 24°C (76°F) | 11°C (51°F) | 0" |
| 1979 | 29°C (85°F) | 14°C (58°F) | 0" |
| 1978 | 20°C (68°F) | 8°C (47°F) | 0" |
| 1977 | 19°C (67°F) | 9°C (49°F) | 0" |
| 1976 | 19°C (67°F) | 11°C (51°F) | 0" |
| 1975 | 28°C (83°F) | 16°C (60°F) | 0.56" |
| 1974 | 18°C (65°F) | 11°C (51°F) | 0" |
| 1973 | 18°C (64°F) | 11°C (52°F) | 0.23" |
| 1972 | 29°C (85°F) | 11°C (52°F) | 0" |
| 1971 | 17°C (63°F) | 12°C (54°F) | 0.13" |