Sydney Climate by Month – Rainy Season, Temperature Averages
Summary
The climate figures for Sydney are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 1,019 mm.
The rainy season runs January–March. The wettest month is March with 157.3 mm across 16 rain days; the driest is September at just 53.9 mm.
The hottest month is January (average high 26.5°C) and the coolest is June (16.8°C).
The most comfortable time to visit Sydney is September — less rain and milder heat.
Monthly averages · 2016–2025
| Monthly averages | High | Low | Rainfall | Rainy season |
|---|---|---|---|---|
| January | 26.5° | 19.3° | 107 mm | 13 |
| February | 26.0° | 19.1° | 109 mm | 13 |
| March | 24.8° | 18.1° | 157 mm | 16 |
| April | 22.7° | 14.6° | 77 mm | 10 |
| May | 19.6° | 11.2° | 78 mm | 9 |
| June | 16.8° | 8.7° | 74 mm | 10 |
| July | 17.0° | 8.1° | 75 mm | 7 |
| August | 18.1° | 8.7° | 69 mm | 8 |
| September | 20.9° | 10.6° | 54 mm | 7 |
| October | 22.6° | 13.3° | 73 mm | 11 |
| November | 23.7° | 15.4° | 81 mm | 11 |
| December | 25.9° | 17.6° | 65 mm | 10 |