Cayo Largo — Water Temperature in May

Water Temperature Range

26°C

minimum

29°C

average

32°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
MAY 1	-10°C	29°C	27°C	29°C
MAY 2	29°C	28°C	27°C	28°C
MAY 3	29°C	28°C	26°C	29°C
MAY 4	29°C	29°C	27°C	29°C
MAY 5	29°C	29°C	28°C	29°C
MAY 6	29°C	29°C	27°C	29°C
MAY 7	30°C	29°C	28°C	29°C
MAY 8	30°C	29°C	28°C	29°C
MAY 9	30°C	29°C	29°C	29°C
MAY 10	30°C	29°C	29°C	29°C
MAY 11	30°C	29°C	29°C	29°C
MAY 12	30°C	29°C	30°C	29°C
MAY 13	31°C	29°C	29°C	30°C
MAY 14	31°C	29°C	29°C	30°C
MAY 15	31°C	29°C	29°C	30°C
MAY 16	30°C	29°C	30°C	30°C
MAY 17	30°C	29°C	30°C	30°C
MAY 18	30°C	29°C	30°C	30°C
MAY 19	30°C	29°C	30°C	29°C
MAY 20	30°C	29°C	30°C	29°C
MAY 21	30°C	29°C	30°C	29°C
MAY 22	30°C	29°C	30°C	29°C
MAY 23	30°C	29°C	30°C	29°C
MAY 24	30°C	29°C	31°C	28°C
MAY 25	30°C	29°C	31°C	28°C
MAY 26	30°C	29°C	30°C	28°C
MAY 27	30°C	29°C	31°C	28°C
MAY 28	30°C	29°C	30°C	29°C
MAY 29	30°C	29°C	31°C	28°C
MAY 30	30°C	29°C	31°C	29°C
MAY 31	30°C	30°C	31°C	29°C

May: Climate and Swimming Opportunities

Average Night Air Temperature

21°C

Average Day Air Temperature

31°C

Precipitation Amount per Month

137 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

8 hrs

Average Wind Speed

12 km/h

Average Humidity

79%

At such water and air temperatures, swimming feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.