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Climate · Sydney

Sydney in December

Warm and damp, as the days hold steady.

Typical weather, averaged over 30 years

December in Sydney is warm: highs near 79°F, lows near 65°F. Rain falls on about two days a week, and daylight holds at about 14 hours 22 minutes.December in Sydney is warm: highs near 26°C, lows near 18°C. Rain falls on about two days a week, and daylight holds at about 14 hours 22 minutes.

High
79°F26°Caverage
Low
65°F18°Caverage
Wet days
2a week · 32% of days
Daylight
14h 22mon average

Is December a good time to visit Sydney?

Yes. December is one of Sydney's best months (March to May, or September to December).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 79°F in December, against 63°F to 81°F through the year.Highs near 26°C in December, against 17°C to 27°C through the year.

Chance of a wet day

32% of days in December, against 23% to 43% through the year.

Cloud cover

41% cover in December, against 27% to 44% through the year.

Daylight

14h 22m in December, against 9h 56m to 14h 22m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November76°24°low 61°low 16°2 wet days a weekRain on about two days a week.
  2. December79°26°low 65°low 18°2 wet days a weekRain on about two days a week.
  3. January81°27°low 68°low 20°2 wet days a weekRain on about two days a week.

Where Sydney sits, in December

Australia/Sydney
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
5:39 AMsets 8:02 PM
Above the sea
60 mlow-lying
Latitude
33.9°Ssouthern hemisphere
Nearest of ours
Canberra250 km south-west

The land around Sydney, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Australia in December

high · low · wet days
See December on the planning mapThe whole year in Sydney

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Sydney. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (60 m) against the climate model's (8 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (60 m) against the climate model's (8 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.