Sydney features a humid subtropical climate with warm, sunny summers and mild, cooler winters. The city enjoys abundant sunshine, moderate humidity, and refreshing sea breezes. Seasonal changes are gentle, with no extreme temperature swings, making Sydney an inviting destination for outdoor activities, beach visits, and festivals nearly all year round.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Sydney’s climate is classified as humid subtropical, marked by warm to hot summers (December–February) and mild winters (June–August). Average summer temperatures range from 19°C to 26°C, with occasional heatwaves pushing highs above 35°C, especially in the western suburbs. Humidity peaks in summer, and the city enjoys up to 14 hours of daylight, with water temperatures ideal for swimming at 22–24°C. Rainfall is highest in late summer and early autumn, often arriving as brief but heavy showers or thunderstorms. Summer also brings the famous 'southerly buster,' a strong cool wind that can rapidly lower temperatures in the afternoon.
Autumn (March–May) is mild and pleasant, with temperatures from 11°C to 25°C and lower humidity. Rainfall remains moderate, but days are often sunny and ideal for outdoor activities. Winter temperatures range from 8°C to 18°C, with the coldest months in June and July. Rain is most frequent in June, but winters are generally mild and frost is rare. Spring (September–November) sees temperatures rise from 12°C to 24°C, humidity is moderate, and rainfall is relatively low, making it one of the sunniest and most comfortable times of year. Sydney averages around 2,640–3,000 hours of sunshine annually, with winter often sunnier than summer due to fewer cloudy days. Winds are strongest from October to January, especially along the coast, and sea breezes provide relief on hot days.
The city’s weather is influenced by the Pacific Ocean, resulting in microclimates – coastal areas are cooler and wetter, while inland suburbs can be significantly warmer. Sydney’s climate is also shaped by global weather patterns, occasionally bringing droughts, bushfires, or storms. Overall, Sydney’s gentle seasonal transitions and ample sunshine create ideal conditions for year-round exploration and outdoor living.
| Average climate data for Sydney, Australia | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | -1 | -1 | 3 | 8 | 16 | 21 | 22 | 20 | 15 | 10 | 4 | 1 | 22 |
| Average minimum temperature (°C) | -5 | -5 | -3 | 1 | 6 | 11 | 13 | 13 | 9 | 5 | 1 | -3 | -5 |
| Average precipitation (mm) | 39 | 27 | 29 | 29 | 32 | 55 | 66 | 59 | 52 | 48 | 46 | 45 | 528 |
| Average rainfall days (days) | 9 | 7 | 7 | 6 | 6 | 9 | 9 | 9 | 8 | 9 | 10 | 10 | 99 |
| Average snowfall (mm) | 9 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 |
| Average snowfall days (days) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Average relative humidity (%) | 74 | 70 | 75 | 76 | 74 | 71 | 77 | 79 | 79 | 73 | 72 | 69 | 74 |
| Average wind speed (km/h) | 8 | 9 | 10 | 10 | 9 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 8 |
| Average water temperature (°C) | 2 | 1 | 1 | 3 | 7 | 14 | 18 | 19 | 15 | 10 | 7 | 5 | 9 |
| Average daily daylight hours (h) | 7 | 9 | 11 | 14 | 17 | 18 | 17 | 15 | 12 | 10 | 7 | 6 | 12 |
| Average daily sunshine hours (h) | 1 | 2 | 4 | 6 | 8 | 9 | 8 | 7 | 5 | 3 | 1 | 1 | 5 |
| Average cloud coverage (%) | 67 | 60 | 64 | 58 | 46 | 40 | 42 | 45 | 42 | 45 | 51 | 55 | 51 |
| Average UV index | 0 | 1 | 1 | 3 | 4 | 5 | 5 | 4 | 3 | 1 | 0 | 0 | 2 |
The best time to visit Sydney is during spring (September to November) and autumn (March to May), when temperatures are mild (15–25°C), humidity is comfortable, and rainfall is moderate. These seasons offer sunny days, fewer crowds, and ideal conditions for sightseeing, coastal walks, and enjoying the city’s vibrant festivals and outdoor events.
The least favourable times to visit are mid-summer (January–February), when heat and humidity peak and tourist crowds fill the beaches, and mid-winter (July), when rain is most frequent and daylight hours are shortest. While both periods have their charms, outdoor activities and sightseeing can be less comfortable.
Sydney has a humid subtropical climate with warm, sunny summers and mild, cooler winters. Rainfall is spread throughout the year, with peaks in late summer and early winter. The city enjoys abundant sunshine and gentle seasonal changes.
Summer temperatures in Sydney typically range from 19°C to 26°C, but heatwaves can push highs above 35°C, especially in the western suburbs. Humidity is also higher, making it feel warmer.
Rainfall is moderate, with the wettest months in late summer (February–March) and winter (June). Showers are usually brief but can be heavy. There is no true dry season, but spring and late autumn are drier.
Yes, Sydney is the windiest Australian capital, especially from October to January. Coastal areas experience strong sea breezes in summer, while winter winds are cooler and come from the west or northwest.
The Pacific Ocean near Sydney is warmest from December to March, with water temperatures of 22–24°C. Outside these months, the water is cooler, and wetsuits are recommended for extended swimming or surfing.
Pack light, breathable clothing and sun protection for summer, and bring layers and a rain jacket for spring, autumn, or winter. Comfortable shoes are essential for exploring the city and its coastal walks.
Sydney can experience heatwaves, storms, and occasionally droughts or bushfires, especially in the west. However, extreme cold is rare, and snow does not fall in the city.
The warmest month, with the highest average maximum temperature, is July (22 °C). The month with the lowest average maximum temperature is January (-0.6 °C). Overall, the average maximum temperature over the whole year is 10 °C.
The month with the highest average minimum temperature is July (13.5 °C). The coldest month, with the lowest average minimum temperature, is February (-5.4 °C). Overall, the average minimum temperature over the whole year is 3.6 °C.
The month with the highest average water temperature is August (18.7 °C). The month with the lowest average water temperature is February (1 °C). Overall, the average water temperature over the whole year is 8.5 °C.
The wettest month, with the highest amount of precipitation, is July (65.9 mm). The driest month, with the least amount of precipitation, is February (27.2 mm). Over the whole year there are 527.7 mm of rainfall on average.
The month with the most days of rain is December (10.1 days). The month with the fewest days of rain is May (6 days). Over the whole year there are 99 days of rain on average.
The month with the most snowfall is January (9.1 mm). The months with the least snowfall are April, May, June, July, August, September, October, November and December (0 mm). Over the whole year there are 12.1 mm of snowfall on average.
The month with the most days of snowfall is January (1 days). The months with the fewest days of snowfall are May, July, October and November (0 days). Over the whole year there are 1.9 days of snowfall on average.
The month with the highest average relative humidity is September (79.3 %). The month with the lowest average relative humidity is December (69.3 %). The overall average relative humidity over the whole year is 74.1 %.
The windiest month, with the highest average wind speed, is March (10 km/h). The calmest month, with the lowest average wind speed, is September (6.8 km/h). The overall average wind speed over the whole year is 8.2 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is January (66.5 %). The month with the clearest skies, so the lowest cloud coverage, is June (39.6 %). Over the whole year there is an average cloud coverage of 51.3 %.
The month with the longest days, so the most daylight, is June (Average daylight: 18 h). The month with the shortest days, so the least daylight, is December (Average daylight: 6 h). Over the whole year there are 12 h of daylight per day on average.
The month with the most sunshine per day is June (Average sunshine: 9 h). The month with the least sunshine per day is December (Average sunshine: 1 h). Over the whole year there are 4.6 h of sunlight per day on average.
The months with the highest average UV index are June and July (UV index: 5). The months with the lowest average UV index are January, November and December (UV index: 0). Over the whole year the average UV index is 2.2.
