Climate in Sydney (New South Wales), Australia

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Celsius

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Daily percent of sunshine

The mean percent of sunhours during the day over the year

Average water temperature

The mean water temperature over the year. Show in Celsius

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Millimeter

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average humidity

The mean monthly relative humidity over the year

Average wind speed

The mean monthly wind speed over the year (in meters per second)

Weather Forecasts for Sydney (New South Wales)

MON Jan 17
86°F | 71°F
Patchy rain possible

Patchy rain possible

TUE Jan 18
73°F | 70°F
Heavy rain

Heavy rain

WED Jan 19
73°F | 69°F
Patchy rain possible

Patchy rain possible

The best time of year to visit Sydney in Australia

Sydney has a humid subtropical climate meaning mild cool winters and hot summers. Rain and sunshine is spread out evenly throughout the year.

Summer in Sydney starts in December and lasts until the end of March. In the summer months it is hot and the maximum average temperatures are between 25 and 27 degrees Celsius (77-80.6° Fahrenheit). In recent years heat waves and drought have become more common. July is the coldest month with an average of 17.8 degrees Celsius (64° F) in the day and the temperature is almost always above zero at night.

The best time to go to Sydney is in spring. In the months September and October it is quite dry and it is pleasantly warm without getting to hot. Sydney has 105 days of clear days a year making it a sunny destination.

During the month of April, May, September, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).

Other facts from our historical climate data:

  • When is summer in Sydney?
    The hottest season / summer takes place in January, February, March and December.
  • Which is the warmest month in Sydney?
    January has an average maximum temperature of 27°C (80°F) and is the warmest month of the year.
  • Which is the coldest month in Sydney?
    The coldest month is July with an average maximum temperature of 17°C (64°F).
  • Which is the wettest month in Sydney?
    June tops the wettest month list with 144mm (5.7in) of rainfall.
  • Which is the driest month in Sydney?
    September is the driest month with 64mm (2.5in) of precipitation.
  • Which is the sunniest month in Sydney?
    December is the sunniest month with an average of 257 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.