Cabo Polonio — Water Temperature in May

Water Temperature Range

11°C

minimum

16°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

11°C

Average Day Air Temperature

18°C

Precipitation Amount per Month

97 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

5 hrs

Average Wind Speed

15 km/h

Average Humidity

80%

At such water and air temperatures, swimming often feels chilly and is best for short swims. Getting out can feel cold, so it helps to have dry clothes ready right away.