Cancún weather in July
July in Cancún: sweltering, rainy, with very humid — an excellent time to visit.
#6 of 12 months in Cancún · #213 of 604 destinations to visit in July · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Cancún climate normals — July
| Daytime high | 31°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 81°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 86 mm / 3.4 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 13.3 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 63 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cancún in July — FAQ
- Is July a good time to visit Cancún?
- July in Cancún: sweltering, rainy, with very humid — an excellent time to visit. It ranks #6 of 12 months for Cancún on SeasonMap's comfort score (84/100).
- What is the weather like in Cancún in July?
- In July, Cancún averages a daily high of 30.5°C and a low of 27°C, with about 85.8 mm of rain over roughly 15 rainy days.
- What is the air quality in Cancún in July?
- Cancún has a mean US Air Quality Index of about 63 in July.