Sydney weather in December
Sydney in December averages 22°C (72°F), 68 mm of rain and 7.5 hours of sun a day.
Of the twelve months in Sydney, December is the third warmest and the fourth driest.
- Average temp
- 22°C (72°F)
18–26°C · 65–80°F
- Rainfall
- 68 mm
Showers likely
- Sunshine
- 7.5 h
hours per day
What is Sydney like in December?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Some rain is likely; pack for showers.
Evening
Evenings stay warm.
What should I pack for Sydney in December?
A light rain jacket
About 68 mm falls this month — showers rather than washouts.
December compared with November and January
December in Sydney is 1.8°C warmer than November and about as wet as it, which averages 21°C (69°F).
December in Sydney is 1.4°C cooler than January and 12 mm drier than it, which averages 24°C (75°F).
Daylight in Sydney in December
On 15 December the sun is up for 14 hours 24 minutes in Sydney, rising about 05:38 and setting about 20:02 local time.
No month in Sydney has more daylight than December.
Where to stay in Sydney
Dates are a starting point for December.
Travel guides for Sydney
What to read before you book.
Sydney weather by month
TemperatureRainfall
How December compares with the rest of the year
December is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 24°C / 75°F | 80 mm |
| February | 24°C / 74°F | 116 mm |
| March | 22°C / 72°F | 90 mm |
| April | 19°C / 67°F | 95 mm |
| May | 16°C / 62°F | 89 mm |
| June | 14°C / 57°F | 121 mm |
| July | 13°C / 56°F | 70 mm |
| August | 14°C / 58°F | 63 mm |
| September | 17°C / 62°F | 57 mm |
| October | 19°C / 66°F | 55 mm |
| November | 21°C / 69°F | 71 mm |
| December | 22°C / 72°F | 68 mm |
Check another month
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FAQs about Sydney in December
December climate averages for Sydney, 1991–2020.
Sydney averages 22°C (72°F) in December, ranging from about 18°C (65°F) at night to 26°C (80°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 68 mm falls across December, enough to need a light jacket but not enough to reshape a trip.
No. December averages 22°C (72°F) against 24°C (75°F) in January — 1.4°C cooler.
December is 1.8°C warmer than November, and about as wet.
Yes. December falls inside the most comfortable stretch of the year here, October to January, on temperature and rainfall together.
About 7.5 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what December is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 14 hours 24 minutes of daylight in mid-December, the most of any month in Sydney.
On 15 December, sunrise is about 05:38 and sunset about 20:02 local time. Both shift across the month.
