Sydney weather in December
December is a fair month to visit Sydney: highs of 24°C (76°F) and about 72 mm (2.8 in) of rain on average. Nights average 19°C (65°F) and cloud cover 60% (NASA POWER, 2001–2025 averages). It is the 6th driest month of the year and the 3rd warmest. Compared with November, it is warmer and about as wet; January brings highs of 26°C (78°F) and 83 mm (3.3 in) of rain.
Is December a good time to visit Sydney?
fair month Weather score 76/100.
December is a fair month in Sydney. The weather is usually best in Apr–May, Sep–Oct.
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Does it rain a lot in Sydney in December?
Some rain is normal: about 72 mm (2.8 in) falls in an average December. It is the 6th driest month of the year.
How warm is Sydney in December?
Days average 24°C (76°F) and nights 19°C (65°F).
Sydney weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 26°C (78°F) | 20°C (69°F) | 83 mm | 59% | fair |
| February | 25°C (77°F) | 21°C (69°F) | 134 mm | 61% | least pleasant |
| March | 24°C (75°F) | 20°C (67°F) | 104 mm | 59% | fair |
| April | 22°C (72°F) | 18°C (64°F) | 73 mm | 54% | best |
| May | 20°C (67°F) | 15°C (59°F) | 54 mm | 52% | best |
| June | 17°C (63°F) | 13°C (55°F) | 87 mm | 58% | least pleasant |
| July | 17°C (62°F) | 12°C (53°F) | 44 mm | 49% | fair |
| August | 17°C (63°F) | 12°C (53°F) | 47 mm | 46% | fair |
| September | 20°C (67°F) | 14°C (56°F) | 43 mm | 47% | best |
| October | 22°C (71°F) | 15°C (60°F) | 64 mm | 55% | best |
| November | 23°C (73°F) | 17°C (63°F) | 83 mm | 61% | fair |
| December | 24°C (76°F) | 19°C (65°F) | 72 mm | 60% | fair |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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