Weather in Sydney in december
Climate normals based on 10 years of historical data for Sydney, Australien.
Average high
25°C
Average low
18°C
Rainfall
69 mm
10 rainy days
Sunshine
3.9h/day
Luftfuktighet
71%
Sea temperature
20.6°C
How Hot Is Sydney in december?
Early summer hits its stride in Sydney: 25°C afternoons, 18°C cool mornings.
Sunshine Hours in december
Sydney's long December days are partially clouded: 3.9h of direct sun on a typical day.
Does It Rain In Sydney In december?
Sydney's December is moderately rainy — 69mm across 10 days.
Is Sydney Humid In december?
Expect a humid December in Sydney: 71% on average, with little overnight relief.
How Warm Is The Sea In Sydney In december?
The sea is cool but swimmable off Sydney in December — averaging 20.6°C.
Wind In Sydney In december
Sea breeze or thermal winds keep Sydney moving at 23 kph in December.
Cloud Cover In Sydney In december
Grey, cloudy days are the norm: 63% average cover in Sydney.
Cities With Similar Weather In december
Weather in Sydney, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 26°C / 20°C | 108mm | Details → |
| Vädret i februari | 26°C / 20°C | 113mm | Details → |
| Vädret i mars | 25°C / 19°C | 164mm | Details → |
| Vädret i april | 22°C / 16°C | 104mm | Details → |
| Vädret i maj | 19°C / 12°C | 71mm | Details → |
| Vädret i juni | 17°C / 10°C | 87mm | Details → |
| Vädret i juli | 17°C / 9°C | 66mm | Details → |
| Vädret i augusti | 18°C / 10°C | 51mm | Details → |
| Vädret i september | 20°C / 12°C | 47mm | Details → |
| Vädret i oktober | 22°C / 14°C | 86mm | Details → |
| Vädret i november | 23°C / 16°C | 88mm | Details → |
| Vädret i december | 25°C / 18°C | 69mm |