Jekyll Island — Water Temperature in May

Water Temperature Range

19°C

minimum

24°C

average

27°C

maximum

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

17°C

Average Day Air Temperature

27°C

Precipitation Amount per Month

70 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

14 km/h

Average Humidity

71%

At such water and air temperatures, swimming is pleasant and refreshing rather than hot. After you get in, it feels comfortable, and you’ll warm up quickly when you come out.