Cozumel Weather in May
Thinking of visiting Cozumel in May? Expect high temperatures reaching 29°C (84°F) during the day, dropping to 26°C (79°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Cozumel in May
Past climate data indicates that roughly 7 days will see rain, totalling around 91 mm (3.6 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Cozumel in May
May tends to be one of the perfect months in Cozumel, with 29°C (84°F) in the afternoon and 26°C (79°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Cozumel in May
There are approximately 228 hours of sunshine this month, resulting in mostly clear days.
Average water temperature in May
At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May and December typically offer the best weather for Cozumel.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cozumel's climate page.
Cozumel Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F) *
Chance of Rain
22%
Precipitation
91 mm (3.6 in)
Rainy days
7 days
Sunshine
228 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cozumel typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in May
Historical weather for Cozumel in May
Browse day-by-day weather records for Cozumel spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cozumel historical weather extremes in May
Our historical data for Cozumel spans 1992 to 2026, revealing these weather extremes.
- The warmest day in May was on May 2, 2003, with a maximum of 39°C (102°F).
- Cozumel experienced its chilliest May day on May 9, 2001, reaching only 24°C (75°F).
- Nighttime temperatures dropped to 16°C (61°F) on May 1, 2023, marking the coldest May night on record.
Best Places in Mexico in May
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in May →
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What to Wear in Cozumel in May
Warm but pleasant conditions in Cozumel in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Cozumel in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cozumel's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Cozumel climate overview or explore weather in Mexico.
