Sydney, Australia Climate & Monthly Averages
The climate of Sydney
Sydney has a humid subtropical climate, marked by hot, humid summers and generally mild winters. Average daytime highs range from about 62°F (17°C) in July to around 80°F (27°C) in January, and the city records roughly 122 days of measurable precipitation a year.
Climate quick facts
- Hottest month: January - highs near 80°F (27°C)
- Coldest month: July - highs near 62°F (17°C)
- Record high: 108°F (42°C) · Record low: 34°F (1°C) (2015–2024)
- Wettest month: March (15 rainy days) · Sunniest: December (11.6 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
Temperatures through the year
The warmest stretch of the year centers on January. Highs average 80°F (27°C) and overnight lows stay near 67°F (20°C). The coolest month is July, with typical highs of 62°F (17°C) and lows around 47°F (8°C). Based on 2015–2024 weather data, temperatures have reached as high as 108°F (42°C) and dropped as low as 34°F (1°C).
Rain, sun and snow
March is usually the wettest month. It brings about 6.0 inches (152 mm) of rain over 15 days, while September is the driest. December brings the most sunshine, averaging 11.6 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 80° | 67° | 13 | 3.9 in | 10.9 h/day | 77% |
| February | 79° | 66° | 13 | 4.2 in | 10.6 h/day | 76% |
| March | 77° | 64° | 15 | 6.0 in | 9.5 h/day | 77% |
| April | 72° | 58° | 10 | 3.8 in | 9.4 h/day | 77% |
| May | 67° | 52° | 8 | 2.4 in | 8.7 h/day | 74% |
| June | 62° | 48° | 10 | 3.0 in | 8.2 h/day | 76% |
| July | 62° | 47° | 7 | 2.6 in | 8.9 h/day | 71% |
| August | 65° | 47° | 6 | 1.9 in | 9.2 h/day | 68% |
| September | 69° | 51° | 8 | 1.9 in | 10.4 h/day | 67% |
| October | 72° | 56° | 11 | 2.9 in | 10.3 h/day | 71% |
| November | 74° | 60° | 11 | 3.2 in | 11.0 h/day | 72% |
| December | 78° | 64° | 10 | 2.6 in | 11.6 h/day | 73% |
Sydney month by month
Sydney weather in January
January brings highs around 80°F (27°C), lows near 67°F (20°C), about 13 wet days - typically the hottest month of the year in Sydney.
Sydney weather in February
February brings highs around 79°F (26°C), lows near 66°F (19°C), about 13 wet days.
Sydney weather in March
March brings highs around 77°F (25°C), lows near 64°F (18°C), about 15 wet days - typically the wettest month of the year in Sydney.
Sydney weather in April
April brings highs around 72°F (22°C), lows near 58°F (15°C), about 10 wet days.
Sydney weather in May
May brings highs around 67°F (20°C), lows near 52°F (11°C), about 8 wet days.
Sydney weather in June
June brings highs around 62°F (17°C), lows near 48°F (9°C), about 10 wet days.
Sydney weather in July
July brings highs around 62°F (17°C), lows near 47°F (8°C), about 7 wet days - typically the coldest month of the year in Sydney.
Sydney weather in August
August brings highs around 65°F (18°C), lows near 47°F (9°C), about 6 wet days.
Sydney weather in September
September brings highs around 69°F (20°C), lows near 51°F (11°C), about 8 wet days - typically the driest month of the year in Sydney.
Sydney weather in October
October brings highs around 72°F (22°C), lows near 56°F (13°C), about 11 wet days.
Sydney weather in November
November brings highs around 74°F (24°C), lows near 60°F (16°C), about 11 wet days.
Sydney weather in December
December brings highs around 78°F (26°C), lows near 64°F (18°C), about 10 wet days - typically the sunniest month of the year in Sydney.
Seasons in Sydney
Spring (September through November)
Spring in Sydney brings comfortable warmth, with daytime highs averaging 72°F (22°C) and nights around 56°F (13°C); expect showers on roughly 30 days across the season.
Summer (December through February)
Summer in Sydney is pleasantly warm, with daytime highs averaging 79°F (26°C) and nights around 66°F (19°C); expect showers on roughly 36 days across the season.
Fall (March through May)
Fall in Sydney is pleasantly warm, with daytime highs averaging 72°F (22°C) and nights around 58°F (15°C); expect showers on roughly 33 days across the season.
Winter (June through August)
Winter in Sydney stays on the cool side of mild, with daytime highs averaging 63°F (17°C) and nights around 47°F (9°C); expect showers on roughly 23 days across the season.
Climate questions, answered
What is the average temperature in Sydney?
Is Sydney hot in summer?
Is Sydney cold in winter?
How many rainy days does Sydney get in a year?
Best time to visit Sydney
The best time to visit Sydney is generally July to September and May, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 66°F (19°C).
Pack for Sydney with a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - January nights average 67°F (20°C).
Sydney temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.