Climate averages 1991–2020
Cozumel weather
in May.
A hot, moderately wet month: the 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Cozumel: daytime highs average 28.1°C and nights cool to about 26.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 84 mm of rain on roughly 11 days, which makes May a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 06 min on an average May day.
The nearest other city in this atlas is Playa del Carmen (20 km away). In May its highs average 29.3°C, 1.1°C warmer than Cozumel, with 82 mm of rain.
Among the 153 cities listed in Mexico, Cozumel ranks 107th of 153 for the warmest May highs and joint 126th of 153 for the driest May (rainfall, lowest first). The mean May high of those 153 cities is 29.6°C; Cozumel is 1.5°C cooler than that mean.
From May to June, average highs rise by 0.4°C to 28.5°C, and monthly rainfall rises from 84 mm to 168 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Cozumel climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.3°C23.4°C | 23.4°C | 64 | 11.6 | 11.011 h |
| February | 25.7°C23.8°C | 23.8°C | 28 | 6.9 | 11.511 h |
| March | 26.3°C24.3°C | 24.3°C | 26 | 5.7 | 12.012 h |
| April | 27.3°C25.3°C | 25.3°C | 29 | 5.7 | 12.613 h |
| May, selected | 28.1°C26.1°C | 26.1°C | 84 | 11.1 | 13.113 h |
| June | 28.5°C26.6°C | 26.6°C | 168 | 17.4 | 13.413 h |
| July | 28.9°C27.0°C | 27.0°C | 82 | 14.1 | 13.213 h |
| August | 29.1°C27.0°C | 27.0°C | 107 | 16.2 | 12.813 h |
| September | 28.8°C26.6°C | 26.6°C | 179 | 21.1 | 12.312 h |
| October | 27.9°C25.9°C | 25.9°C | 215 | 19.7 | 11.712 h |
| November | 26.7°C24.9°C | 24.9°C | 103 | 12.9 | 11.211 h |
| December | 25.9°C24.1°C | 24.1°C | 66 | 11.7 | 10.911 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Playa del Carmen in MayMexico · 20 kmHigh 29.3°C · Low 25.1°C · 82 mm rain
- Cancún in MayMexico · 76 kmHigh 29.0°C · Low 25.4°C · 75 mm rain
- Chetumal in MayMexico · 262 kmHigh 31.6°C · Low 24.8°C · 93 mm rain
- Kanasín in MayMexico · 276 kmHigh 36.1°C · Low 24.4°C · 51 mm rain
- Mérida in MayMexico · 284 kmHigh 35.7°C · Low 24.3°C · 51 mm rain
- Campeche in MayMexico · 380 kmHigh 35.3°C · Low 25.4°C · 50 mm rain
- Pinar del Río in MayCuba · 398 kmHigh 31.2°C · Low 22.7°C · 110 mm rain
- Belmopan in MayBelize · 409 kmHigh 32.0°C · Low 23.8°C · 95 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Cozumel) is explained once on the Cozumel year overview and on the Sources, method and limits page.