Sydney has a humid subtropical climate: warm to hot summers, mild winters and rain spread through the year, with the wettest months usually in late summer and autumn.
Season by season
Spring (September–November)
Warm, bright days, jacarandas in purple bloom in November and whales off the coast early in the season. One of the best times to visit.
Summer (December–February)
Hot and often humid, with thunderstorms and the busiest beaches. New Year’s Eve and the school holidays push prices to their peak.
Autumn (March–May)
Settled, warm weather and the sea at its warmest in March. Mardi Gras and Easter bring crowds; May starts to cool.
Winter (June–August)
Mild, often sunny days around 17–19 °C and cool nights. Too cold for most to swim, but good for walking, whale watching and Vivid Sydney.
Month by month
| Month | Avg high / low | Wet days | Daylight | Our verdict |
|---|---|---|---|---|
| January | 26° / 19°C | ≈12 | ≈14.2 h | Peak season |
| February | 26° / 19°C | ≈12 | ≈13.4 h | Peak season |
| March | 25° / 18°C | ≈13 | ≈12.3 h | Best |
| April | 23° / 15°C | ≈11 | ≈11.2 h | Best |
| May | 20° / 12°C | ≈11 | ≈10.3 h | Good |
| June | 18° / 10°C | ≈11 | ≈9.9 h | Good |
| July | 17° / 8°C | ≈9 | ≈10.1 h | Good |
| August | 19° / 9°C | ≈8 | ≈10.8 h | Good |
| September | 21° / 12°C | ≈9 | ≈11.8 h | Best |
| October | 23° / 14°C | ≈10 | ≈12.9 h | Best |
| November | 24° / 16°C | ≈11 | ≈13.8 h | Best |
| December | 26° / 18°C | ≈11 | ≈14.4 h | Peak season |
Approximate long-term averages, rounded; daylight is the approximate time between sunrise and sunset mid-month (Sydney’s latitude). Seasons are reversed from the northern hemisphere: summer is December to February.
Festivals & events
- January Sydney Festival, with theatre, music and outdoor events across the city.
- February–March Sydney Gay and Lesbian Mardi Gras, ending with the parade on Oxford Street.
- May–June Vivid Sydney: light installations, projections and music around the harbour.
- 31 December New Year’s Eve fireworks over the harbour; vantage points fill up very early.
Crowds & booking ahead
Expect the heaviest crowds and highest prices from mid-December to late January, at Easter and during Vivid. Book hotels for New Year’s Eve many months ahead. For the best mix of weather and space, come in March, April, October or November.
