Sydney is warmest in January, averaging 26° by day and 21° at night. The wettest month is March with 198 mm, and the year brings about 1062 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 26° | 21° | 105 mm | 23° | 14.0 h | Beach weather |
| February | 25° | 21° | 168 mm | 24° | 13.2 h | Rainy season |
| March | 24° | 20° | 198 mm | 24° | 12.3 h | Rainy season |
| April | 22° | 18° | 87 mm | 23° | 11.1 h | Sightseeing |
| May | 19° | 15° | 50 mm | 21° | 10.2 h | Sightseeing |
| June | 17° | 13° | 33 mm | 20° | 9.8 h | Sightseeing |
| July | 17° | 12° | 78 mm | 18° | 10.0 h | Sightseeing |
| August | 18° | 12° | 40 mm | 18° | 10.7 h | Sightseeing |
| September | 20° | 14° | 36 mm | 18° | 11.8 h | Sightseeing |
| October | 22° | 16° | 81 mm | 19° | 12.9 h | Sightseeing |
| November | 22° | 17° | 108 mm | 20° | 13.8 h | Mild |
| December | 24° | 19° | 78 mm | 21° | 14.2 h | Sightseeing |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: January — highs around 26°, nights no colder than 21°, and at most 105 mm of rain in a month. The sea sits at 23–23° then.
Walking the city: April, May, June, July, August, September, October and December — highs of 17–24° and no more than 87 mm of rain a month.
Wet season: February and March — up to 198 mm in a single month.