Cancún weather in May
May in Cancún: sweltering, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Cancún · #170 of 604 destinations to visit in May · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Cancún climate normals — May
| Daytime high | 30°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 92 mm / 3.6 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 11.6 h/day | |
| Daylight | 13.1 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cancún in May — FAQ
- Is May a good time to visit Cancún?
- May in Cancún: sweltering, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Cancún on SeasonMap's comfort score (86/100).
- What is the weather like in Cancún in May?
- In May, Cancún averages a daily high of 29.6°C and a low of 25.8°C, with about 91.7 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Cancún in May?
- Cancún has a mean US Air Quality Index of about 47 in May.