Sydney weather in May
May in Sydney: nice, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Sydney · #213 of 604 destinations to visit in May · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Sydney climate normals — May
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 51 mm / 2 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 8.6 h/day | |
| Daylight | 10.4 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sydney in May — FAQ
- Is May a good time to visit Sydney?
- May in Sydney: nice, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Sydney on SeasonMap's comfort score (85/100).
- What is the weather like in Sydney in May?
- In May, Sydney averages a daily high of 18.8°C and a low of 12.3°C, with about 50.8 mm of rain over roughly 7.4 rainy days.
- What is the air quality in Sydney in May?
- Sydney has a mean US Air Quality Index of about 46 in May.