Sydney · Australia · 1995–2024 averages
Sydney weather, month by month. October is the pick.
Thirty years of averages for Sydney, Australia — how hot it really feels, when the rain arrives, and what the air is like. October comes out on top; June is the one to skip.
The year at a glance
Tap a month for its full breakdown.
October
bestscore 86.6/100Mild, sticky and dryish, with moderate air.
- Feels like
- 21°
- mild
- Real temp
- 21°
- mild
- Humidity
- 69%
- sticky
- Rain
- 58mm
- dryish
- Cloud cover
- 49%
- bright
- Air quality
- 52
- moderate
- Daylight
- 12.9h
- even
Month by month, metric by metric
Each strip covers the same twelve months, so you can see where the rain lands and how the air shifts with it.
Feels like
peaks at 28° in January
Real temp
16–26° in the shade across the year
Humidity
67% at its driest, 75% at its most oppressive
Rain
91mm in March, 42mm in July
Cloud cover
34% at its clearest, 58% at its greyest
Air quality
worst in February, cleanest in July
Daylight
9.9h to 14.4h of daylight across the year
Sydney's air, month by month
The air is at its worst in February at 55 AQI (moderate), and at its cleanest in July at 45 (clean). It tracks the seasons closely.
Every month in full
All twelve months, all seven measures.
| Month | Feels like | Real temp | Humidity | Rain | Cloud cover | Air quality | Daylight |
|---|---|---|---|---|---|---|---|
| January | 28° warm | 26° mild | 74% sticky | 76mm some rain | 56% mixed | 54 moderate | 14.1h long days |
| February | 27° mild | 25° mild | 75% sweaty | 88mm some rain | 57% mixed | 55 moderate | 13.3h even |
| March | 25° mild | 24° mild | 75% sweaty | 91mm some rain | 54% bright | 55 moderate | 12.3h even |
| April | 21° mild | 22° mild | 74% sticky | 64mm dryish | 47% bright | 53 moderate | 11.2h shortish |
| May | 17° cool | 19° cool | 73% sticky | 54mm dryish | 43% bright | 54 moderate | 10.4h shortish |
| June | 14° cool | 16° cool | 74% sticky | 65mm dryish | 45% bright | 51 moderate | 9.9h short |
| July | 14° cool | 16° cool | 70% sticky | 42mm dryish | 37% bright | 45 clean | 10.1h shortish |
| August | 15° cool | 17° cool | 67% sticky | 43mm dryish | 34% clear | 51 moderate | 10.9h shortish |
| September | 18° cool | 20° cool | 67% sticky | 44mm dryish | 39% bright | 52 moderate | 11.9h shortish |
| October | 21° mild | 21° mild | 69% sticky | 58mm dryish | 49% bright | 52 moderate | 12.9h even |
| November | 23° mild | 23° mild | 72% sticky | 77mm some rain | 58% mixed | 51 moderate | 13.9h even |
| December | 26° mild | 24° mild | 72% sticky | 57mm dryish | 55% mixed | 54 moderate | 14.4h long days |
Sydney weather questions
- What is the best time to visit Sydney?
- October scores best across temperature, rain, humidity and air quality — 21° feels-like, 58mm of rain and 69% humidity. June is the month to avoid: 65mm of rain and 51 AQI.
- How hot does Sydney get?
- January is the peak, at 28° feels-like (26° in the shade) — warm. Even in October it reaches 21°.
- When is the rainy season in Sydney?
- March is the wettest month at 91mm, and July the driest at just 42mm.
- Is air quality a problem in Sydney?
- February is the worst month at 55 AQI (moderate), and July the best at 45 (clean).
Weather normals from Open-Meteo (ERA5 reanalysis, 1995–2024) and CAMS air quality (2015–2024), licensed CC-BY-4.0. Contains modified Copernicus Climate Change Service information. These are long-run averages, not forecasts — any given year will differ.
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