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

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