Perth weather in July
July in Perth: cool, rainy, with clean air — a great time to visit.
#11 of 12 months in Perth · #315 of 604 destinations to visit in July · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Perth climate normals — July
| Daytime high | 17°C / 63°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 95 mm / 3.7 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 9°C / 47°F | |
| Sunshine | 8.1 h/day | |
| Daylight | 10.3 h | |
| Wind | 25 km/h / 16 mph | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Perth in July — FAQ
- Is July a good time to visit Perth?
- July in Perth: cool, rainy, with clean air — a great time to visit. It ranks #11 of 12 months for Perth on SeasonMap's comfort score (78/100).
- What is the weather like in Perth in July?
- In July, Perth averages a daily high of 17.2°C and a low of 10.1°C, with about 94.8 mm of rain over roughly 11.6 rainy days.
- What is the air quality in Perth in July?
- Perth has a mean US Air Quality Index of about 29 in July.