Phoenix weather in July
July in Phoenix: sweltering, dry — not the time — 42°C afternoons.
#12 of 12 months in Phoenix · #868 of 897 destinations to visit in July · comfort 35/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Phoenix in July
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Phoenix climate normals — July
| Daytime high | 42°C / 108°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 29°C / 85°F | |
| Rainfall | 27 mm / 1.1 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 27% | 🌵 dry |
| Dew point | 12°C / 53°F | |
| Sunshine | 12.3 h/day | |
| Daylight | 14.1 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 65 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Phoenix in July — FAQ
- Is July a good time to visit Phoenix?
- July in Phoenix: sweltering, dry — not the time — 42°C afternoons. It ranks #12 of 12 months for Phoenix on SeasonMap's comfort score (35/100).
- What is the weather like in Phoenix in July?
- In July, Phoenix averages a daily high of 42°C and a low of 29.2°C, with about 27 mm of rain over roughly 4.2 rainy days.
- What is the air quality in Phoenix in July?
- Phoenix has a mean US Air Quality Index of about 65 in July.