San Bartolo — Water Temperature in May

Water Temperature Range

15°C

minimum

18°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

1 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

4 hrs

Average Wind Speed

12 km/h

Average Humidity

85%

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.