Weather in Sydney: Climate, Seasons, and Average Monthly Temperature

Sydney, New South Wales, Australia


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As the home of Australia's most iconic beaches, Sydney is sunny and welcoming almost all year round. Australia's location in the southern hemisphere means the seasons are the opposite to those in the U.S., making Sydney the perfect winter escape for northerners.

Summer is warm but rarely uncomfortably hot, with high temperatures ranging from 78 degrees F (26 degrees C) to 81 degrees F (27 degrees C). However, the sun packs a punch in Australia, so make sure to use sun protection to prevent burns. Thunderstorms occasionally occur from October to March.

In the winter months, temperatures hit lows of 47 degrees F (8 degrees C) in July, but quickly rise again during spring. June and July are also the wettest months, making them less appealing for visitors hoping to make the most of the outdoors. However, the water is warm enough for swimming from November through to April (or even longer).

In general, Sydney's weather is mild with some seasonal variation. Here's what you need to know to plan your trip to Australia.

Fast Climate Facts

  • Hottest Month: January (74 degrees F / 23 degrees C) 
  • Coldest Month: July (55 degrees F / 13 degree C) 
  • Wettest Month: June (6.4 inches)
  • Windiest Month: December (12 mph)
  • Best Month for Swimming: February (Sea temperature of 75 degrees F / 24 degrees C)

Summer in Sydney

The summer months from December to January are warm and enjoyable with the occasional hot day. Average humidity reaches 65 percent, and the afternoon ocean breeze is welcome. The holiday period means locals and tourists alike head to the beach, and the city can be busier than usual thanks to an increase in national tourism.

Visit Sydney in early December or February to skip the rush, or make the most of the New Year's Eve celebrations and music festivals in early January. Australia works on Daylight Savings Time from October to April, meaning the summer days are long, and the evenings are pleasant.

What to pack: Shorts, dresses, and sandals or flip flops are useful in Sydney. The city's residents are generally stylish but laid-back, favoring light fabrics and lots of color. Don't forget your swimsuit.

High and Low Temperatures by Month

  • December: 78 F (26 C) / 64 F (18 C)
  • January: 81 F (27 C) / 67 F (19 C)
  • February: 80 F (27 C) / 67 F (19 C)


Sydney in autumn is perfect for sightseeing, as the humidity drops but temperatures remain warm. Many Aussies take a vacation over the Easter long weekend, and some shops and restaurants close, but the beaches are as popular as ever. Keep an eye out for humpback whales, which can be seen off the coast as they migrate north from May to August.

What to pack: Throw in a light sweater and jeans, as well as all the summer essentials.

High and Low Temperatures by Month

  • March: 77 F (25 C) / 65 F (18 C)
  • April: 73 F (23 C) / 59 F (14 C)
  • May: 68 F (20 C) / 53 F (12 C)


Winter is cool, especially overnight and in the early morning, but the sun still shines during the day. From mid-May to mid-June, you can catch Vivid, an annual culture festival that includes large-scale light projections on some of the city's most well-known buildings. Take care if you do choose to swim, as the swell can be huge and rough, especially in August.

What to pack: You'll need a warm jacket, preferably waterproof, plus jeans and comfortable shoes. A T-shirt or short-sleeved shirt will come in handy during the day.

High and Low Temperatures by Month

  • June: 64 F (18 C) / 50 F (10 C)
  • July: 63 F (17 C) / 47 F (8 C)
  • August: 66 F (18 C ) / 49 F (9 C)


Temperatures warm up quickly in spring, while humidity stays low. Jacaranda blooms blanket the city in bright purple from mid-October, reaching their peak in mid-November. You can also see the Sculpture by the Sea outdoor exhibition along the Bondi Beach to Tamarama Beach coastal walk.

What to pack: Your swimsuit and shorts, plus a light jacket.

High and Low Temperatures by Month

  • September: 70 F (21 C) / 53 F (12 C)
  • October: 74 F (23 C) / 57 F (14 C)
  • November: 75 F (24 C) / 61F (16 C)

Sydney's weather is temperate throughout much of the year, but the seasonal changes do make a difference in this coastal paradise. Here's what to expect in terms of average temperature, inches of rain, and daylight hours.

Average Monthly Temperature, Rainfall, and Daylight Hours
Month Avg. Temp. Rainfall Daylight Hours
January 74 F 3.0 inches 14 hours
February 73 F 4.8 inches 13 hours
March 72 F 3.8 inches 12 hours
April 66 F 4.9 inches 11 hours
May 61 F 3.0 inches 10 hours
June 57 F 6.4 inches 10 hours
July 56 F 3.2 inches 10 hours
August 58 F 2.5 inches 11 hours
September 62 F 2.2 inches 12 hours
October 66 F 2.1 inches 13 hours
November 69 F 3.8 inches 14 hours
December 71 F 2.8 inches 14 hours
Article Sources
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  1. Time and Date. Climate Sydney. November 2020.