Cancun UV index in May
Typical ultraviolet levels for Cancun during May, from the past year of data.
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
May average
Cancun UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Cancun in May?
In May, Cancun's typical UV index is about 13.4261 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Cancun sees the strongest UV in Summer, peaking around 13.6015 in June. Plan sun protection accordingly.