Very hot in May
35°C average high
avg high · 24° at night
25°C+ on almost every day · often 35°C+
Mexico
Cancún weather in May
Is it warm? Yes. May in Cancún is hot: afternoons average 30°C and nights 25°C. Most days (80%) peak between 28°C and 32°C.
Hot · average high
30°C
25°C or more on almost every day.
- Average low25°overnight
- Sea27°average, 2023–2025
- Rainy days985 mm in the month
- SkySome cloud44% cloud · 40% clear days
How warm it really gets
Every May afternoon from 2011–2025: 465 days. Most (80%) peaked between 28° and 32°.
May, year by year
The average May high in each year. The warmest, 2024, averaged 33°C; the coolest, 2014, 28°C.
Compared with home
Average May highs. Expect rain on about 9 days (85 mm in a typical month).
- Cancún30°
- London17°
- Manchester16°
- Cork15°
- Dublin15°
- Glasgow15°
- Belfast14°
Warmer in May, not much further
Flying times are estimates from Dublin; Cancún is about 9h 45m.
Very hot in May
35°C average high
avg high · 21° at night
25°C+ on almost every day · often 35°C+
Hot in May
31°C average high
avg high · 24° at night
25°C+ on almost every day
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology