Penestin — Water Temperature in May

Water Temperature Range

11°C

minimum

14°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

10°C

Average Day Air Temperature

20°C

Precipitation Amount per Month

62 mm

Number of Rainy Days

Daylight per Day

15 hrs

Sunshine per Day

7 hrs

Average Wind Speed

18 km/h

Average Humidity

79%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.