Sydney, Australia Climate & Monthly Averages
The climate of Sydney
Weather in Sydney follows a humid subtropical pattern. The warmest and coolest months, January and July, average 80°F (27°C) and 62°F (17°C) by day; nights in those months run 67°F (20°C) and 47°F (8°C).
Climate quick facts
- Hottest month: January - highs near 80°F (27°C)
- Coldest month: July - highs near 62°F (17°C)
- Decade extremes (2015-2024): 108°F (42°C) high · 34°F (1°C) low
- Wettest month: March (15 rainy days) · Sunniest: December (11.6 h sun/day)
- Climate type: humid subtropical
- Annual swing: 11°C between the average warmest and coolest month · day to night: 8°C
- Average humidity: 73%
Temperatures through the year
July sits at the other end of the year: 62°F (17°C) by day, 47°F (8°C) at night. Warmth peaks in January: highs of 80°F (27°C), lows of 67°F (20°C). Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 108°F (42°C) and the lowest daily minimum 34°F (1°C). Sunshine averages 9.9 hours a day over the year, peaking in December at 11.6 hours.
Rain, sun and snow
Seven of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is August through December. March is the wettest month at 6.0 inches (152 mm) over 15 days; September is the driest.
How Sydney compares
- Sydney sits close to the middle of our dataset on most measures: 64°F (18°C) as an annual average, 38.4 inches (976 mm) of precipitation and 9.9 hours of sun a day.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 80° | 67° | 13 | 3.9 in | 10.9 h/day | 14.2 h | 41% | 77% |
| February | 79° | 66° | 13 | 4.2 in | 10.6 h/day | 13.4 h | 47% | 76% |
| March | 77° | 64° | 15 | 6.0 in | 9.5 h/day | 12.4 h | 48% | 77% |
| April | 72° | 58° | 10 | 3.8 in | 9.4 h/day | 11.3 h | 34% | 77% |
| May | 67° | 52° | 8 | 2.4 in | 8.7 h/day | 10.4 h | 24% | 74% |
| June | 62° | 48° | 10 | 3.0 in | 8.2 h/day | 9.9 h | 33% | 76% |
| July | 62° | 47° | 7 | 2.6 in | 8.9 h/day | 10.1 h | 24% | 71% |
| August | 65° | 47° | 6 | 1.9 in | 9.2 h/day | 10.9 h | 20% | 68% |
| September | 69° | 51° | 8 | 1.9 in | 10.4 h/day | 11.9 h | 25% | 67% |
| October | 72° | 56° | 11 | 2.9 in | 10.3 h/day | 13.0 h | 36% | 71% |
| November | 74° | 60° | 11 | 3.2 in | 11.0 h/day | 13.9 h | 37% | 72% |
| December | 78° | 64° | 10 | 2.6 in | 11.6 h/day | 14.4 h | 33% | 73% |
Sydney month by month
Average high and low for each month, with the bar showing where it sits in Sydney's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 13 days
- Sunshine
- 10.9 h
- Daylight
- 14.2 h
February
- Rain
- 13 days
- Sunshine
- 10.6 h
- Daylight
- 13.4 h
March
- Rain
- 15 days
- Sunshine
- 9.5 h
- Daylight
- 12.4 h
April
- Rain
- 10 days
- Sunshine
- 9.4 h
- Daylight
- 11.3 h
May
- Rain
- 8 days
- Sunshine
- 8.7 h
- Daylight
- 10.4 h
June
- Rain
- 10 days
- Sunshine
- 8.2 h
- Daylight
- 9.9 h
July
- Rain
- 7 days
- Sunshine
- 8.9 h
- Daylight
- 10.1 h
August
- Rain
- 6 days
- Sunshine
- 9.2 h
- Daylight
- 10.9 h
September
- Rain
- 8 days
- Sunshine
- 10.4 h
- Daylight
- 11.9 h
October
- Rain
- 11 days
- Sunshine
- 10.3 h
- Daylight
- 13.0 h
November
- Rain
- 11 days
- Sunshine
- 11.0 h
- Daylight
- 13.9 h
December
- Rain
- 10 days
- Sunshine
- 11.6 h
- Daylight
- 14.4 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Sydney
Spring (September through November)
Spring in Sydney settles into easy warmth, with daytime highs averaging 72°F (22°C) and nights around 56°F (13°C); rain falls on around 30 of the 90 days. Daylight is generous - around 10.6 hours of sun a day.
Summer (December through February)
Summer in Sydney is mild and warm, with daytime highs averaging 79°F (26°C) and nights around 66°F (19°C); rain falls on around 36 of the 90 days. Daylight is generous - around 11.0 hours of sun a day.
Fall (March through May)
Fall is pleasantly warm here - highs near 72°F (22°C), nights near 58°F (15°C), and rain falls on around 33 of the 90 days.
Winter (June through August)
Through winter, Sydney is crisp but comfortable: 63°F (17°C) by day, 47°F (9°C) after dark, and expect showers on roughly 23 days across the season.
Climate questions, answered
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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 sit near 66°F (19°C), with rain on about 7 days a month. For the same question asked the other way round, see where else is warm in July.
Pack for Sydney with a compact umbrella or rain shell. Even in January, lows of 67°F (20°C) make an extra layer worth the space.
Sydney temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.