Fort Myers Beach — Water Temperature in May

Water Temperature Range

23°C

minimum

27°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

19°C

Average Day Air Temperature

31°C

Precipitation Amount per Month

74 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

10 hrs

Average Wind Speed

13 km/h

Average Humidity

71%

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.