Sydney weather
World cities · Australia · 33.87°S 151.21°E
Sydney, in Australia, has its warmest weather in January, when daytime temperatures average 26.1°C, while June nights are the coldest at around 8.1°C. The city sees roughly 1205mm of rain a year; March is normally the wettest month and September the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 26.1° | 19.1° | 115mm | 15 |
| Feb | 25.7° | 18.8° | 151mm | 16 |
| Mar | 24.5° | 17.4° | 186mm | 17 |
| Apr | 22.2° | 13.7° | 104mm | 11 |
| May | 19° | 10.7° | 99mm | 11 |
| Jun | 16.8° | 8.1° | 60mm | 9 |
| Jul | 16.8° | 8.3° | 103mm | 10 |
| Aug | 18.7° | 8.8° | 58mm | 7 |
| Sep | 21.1° | 10.6° | 51mm | 8 |
| Oct | 22.4° | 12.8° | 94mm | 12 |
| Nov | 23.3° | 15.3° | 101mm | 13 |
| Dec | 25° | 17.2° | 83mm | 12 |
Seasons in Sydney
Spring (September–November). Daytime highs in Sydney climb from 21.1°C in September to 23.3°C by November, while nights ease from 10.6°C to 15.3°C. The season brings around 246mm of rain in total.
Summer (December–February). The warmest stretch of the year: afternoons average 25.6°C, peaking in January at 26.1°C. December is usually the driest of the summer months (83mm over ~12 rainy days). Around the December solstice, Sydney gets roughly 14.3 hours of daylight.
Autumn (March–May). Daytime temperatures fall from 24.5°C in March to 19°C by May, and rainfall builds to its annual peak — March is the wettest month of the year (186mm).
Winter (June–August). Nights average 8.4°C, with June the coldest month (average low 8.1°C, daytime high 16.8°C). Expect about 26 days with measurable rain over the three months, and only around 9.7 hours of daylight in mid-June.
How Sydney compares
| Sydney | UK town average | |
|---|---|---|
| Annual rainfall | 1205mm | 1054mm |
| Rainy days per year | 141 | 167 |
| Summer daytime high | 25.6°C | 19.7°C |
| Winter night low | 8.4°C | 3.4°C |
Sydney is about 14% wetter than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Sydney weather FAQs
What is the warmest month in Sydney?
January is typically the warmest month in Sydney, with average daytime highs of 26.1°C. Summer afternoons (December–February) average around 25.6°C.
What is the wettest month in Sydney?
March is usually the wettest month, with around 186mm of rain over roughly 17 rainy days. September is typically the driest (51mm).
How much does it rain in Sydney per year?
Sydney receives roughly 1205mm of precipitation per year, spread over about 141 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Sydney?
Winter nights (June–August) in Sydney average around 8.4°C, with June typically the coldest month (average low 8.1°C).
When is the best time to visit Sydney for good weather?
Late spring and summer offer the most reliable weather in Sydney. December is typically the driest of the warm months (83mm of rain), while January is the warmest, averaging 26.1°C by day — and near the December solstice there are around 14 hours of daylight to enjoy.
How does Sydney's weather compare with the UK?
Sydney receives 1205mm of rain a year, about 14% wetter than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 25.6°C against a UK-town average of 19.7°C, and winter nights average 8.4°C versus 3.4°C.