Karoulia — Water Temperature in May

Water Temperature Range

15°C

minimum

19°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

24°C

Precipitation Amount per Month

30 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

10 km/h

Average Humidity

67%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.