Sydney, Australia: Annual Weather Averages
January is the hottest month in Sydney with an average temperature of 23°C (73°F) and the coldest is July at 13°C (55°F) with the most daily sunshine hours at 9 in December. The wettest month is March with an average of 164mm of rain. The best month to swim in the sea is in January when the average sea temperature is 23°C (73°F).
Average Temperature: Sydney
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 23 | 23 | 22 | 19 | 16 | 14 | 13 | 14 | 16 | 18 | 20 | 22 |
| °F | 73 | 73 | 72 | 66 | 61 | 57 | 55 | 57 | 61 | 64 | 68 | 72 |
Average High/Low Temperature: Sydney
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 26 | 26 | 25 | 23 | 20 | 18 | 17 | 18 | 20 | 22 | 24 | 26 |
| Low °C | 19 | 19 | 18 | 15 | 12 | 10 | 8 | 9 | 12 | 14 | 16 | 18 |
| High °F | 79 | 79 | 77 | 73 | 68 | 64 | 63 | 64 | 68 | 72 | 75 | 79 |
| Low °F | 66 | 66 | 64 | 59 | 54 | 50 | 46 | 48 | 54 | 57 | 61 | 64 |
Average Day/Night Temperature: Sydney
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 25 | 24 | 23 | 21 | 18 | 15 | 15 | 16 | 18 | 21 | 22 | 24 |
| Night °C | 23 | 23 | 22 | 19 | 16 | 13 | 13 | 13 | 16 | 19 | 20 | 22 |
| Day °F | 77 | 76 | 74 | 69 | 64 | 59 | 59 | 60 | 65 | 69 | 71 | 75 |
| Night °F | 73 | 73 | 71 | 67 | 60 | 56 | 55 | 56 | 61 | 65 | 68 | 71 |
Average Rainfall: Sydney
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 131 | 126 | 164 | 133 | 101 | 140 | 56 | 99 | 65 | 88 | 116 | 85 |
| Days | 16 | 14 | 15 | 12 | 13 | 13 | 11 | 10 | 11 | 13 | 15 | 14 |
Average Daily Sunshine Hours: Sydney
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 9 | 9 | 9 | 9 | 9 |
Average Sea Temperature: Sydney
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 23 | 23 | 23 | 22 | 20 | 19 | 18 | 18 | 18 | 18 | 19 | 21 |
| °F | 73 | 73 | 73 | 72 | 68 | 66 | 64 | 64 | 64 | 64 | 66 | 70 |
