Weather on December 31 in Sydney

Historical weather data for December 31 in Sydney, Australia

Avg High26°C (79°F)
Avg Low19°C (67°F)
Warmest198528°C
Coldest198419°C

Based on 55 years of data from SYDNEY (OBSERVATORY HILL)

About This Date

December 31st in Sydney, Australia typically brings pleasant winter weather, with average highs around 26°C and lows near 19°C. Over 55 years of records, the warmest December 31st was in 1985 (28°C average), while the coldest was 1984 (19°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 22% of December 31st dates historically, with the wettest December 31st recording 1.54" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.

Planning for December 31st in Sydney? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecip
202522°C (72°F)18°C (65°F)--
202425°C (77°F)22°C (71°F)--
2023--18°C (64°F)--
202223°C (74°F)19°C (67°F)--
202124°C (76°F)19°C (66°F)--
202023°C (73°F)21°C (69°F)--
201936°C (96°F)21°C (69°F)0"
201831°C (87°F)22°C (71°F)0"
201726°C (78°F)20°C (68°F)0.6"
201630°C (86°F)24°C (75°F)0"
201527°C (80°F)17°C (63°F)0"
201425°C (77°F)19°C (67°F)0"
201326°C (79°F)18°C (64°F)0"
201227°C (81°F)18°C (65°F)0.02"
201123°C (74°F)17°C (62°F)0"
201027°C (81°F)22°C (71°F)0"
200925°C (77°F)20°C (68°F)0"
200832°C (89°F)19°C (67°F)0"
200726°C (78°F)19°C (67°F)0"
200623°C (74°F)18°C (65°F)0"
200529°C (85°F)23°C (74°F)0"
200424°C (76°F)16°C (60°F)0"
200327°C (81°F)21°C (69°F)0"
200227°C (80°F)19°C (67°F)0"
200127°C (81°F)19°C (67°F)0"
200024°C (75°F)18°C (65°F)0"
199922°C (72°F)16°C (61°F)0.22"
199824°C (76°F)21°C (70°F)0.2"
199727°C (80°F)21°C (69°F)0"
199625°C (77°F)16°C (61°F)0.14"
199527°C (80°F)21°C (70°F)0.08"
199426°C (78°F)18°C (65°F)0"
199327°C (81°F)18°C (65°F)0"
199226°C (78°F)20°C (68°F)0"
199122°C (72°F)17°C (63°F)1.54"
199030°C (86°F)23°C (73°F)0"
198926°C (78°F)19°C (66°F)0"
198826°C (78°F)18°C (65°F)0"
198724°C (76°F)20°C (68°F)0"
198627°C (81°F)19°C (67°F)0"
198534°C (93°F)21°C (70°F)0"
198421°C (70°F)16°C (61°F)0.56"
198326°C (78°F)21°C (70°F)0"
198227°C (81°F)22°C (71°F)0.04"
198125°C (77°F)19°C (66°F)0"
198025°C (77°F)18°C (64°F)1.34"
197927°C (80°F)19°C (67°F)0"
197824°C (75°F)15°C (59°F)0"
197725°C (77°F)21°C (69°F)0"
197625°C (77°F)19°C (66°F)0.08"
197526°C (79°F)20°C (68°F)0"
197424°C (76°F)19°C (67°F)0"
197323°C (73°F)20°C (68°F)0.81"
197223°C (73°F)19°C (67°F)0"
197128°C (83°F)24°C (76°F)0"

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