Surfside Beach — Water Temperature in May

Water Temperature Range

21°C

minimum

26°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

27°C

Precipitation Amount per Month

91 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

15 km/h

Average Humidity

73%

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.