Sydney, Australia Weather
Sydney hourly forecast: next 24 hours
Today's high of 58°F (15°C) is about 11°F (6°C) below the typical September high of 69°F (20°C).
Current conditions in detail
Sydney weather tomorrow (Thursday, September 17)
Tomorrow in Sydney looks sunny, with a high of 58° and an overnight low of 52°. Precipitation chance is modest at 17%. Winds top out near 28 mph, and the UV index reaches 6 (high).
Sydney 14-day forecast
About the weather in 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).
Sydney weather: 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.
Season by season
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.
Average temperatures in Sydney by month
| 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% |