Deale — Water Temperature in May

Water Temperature Range

10°C

minimum

17°C

average

22°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	2025	2024	2023	2022
MAY 1	14°C	15°C	15°C	14°C
MAY 2	14°C	16°C	14°C	14°C
MAY 3	14°C	17°C	15°C	14°C
MAY 4	15°C	16°C	16°C	15°C
MAY 5	15°C	18°C	17°C	15°C
MAY 6	16°C	17°C	18°C	15°C
MAY 7	15°C	18°C	16°C	15°C
MAY 8	15°C	17°C	17°C	15°C
MAY 9	15°C	18°C	15°C	15°C
MAY 10	15°C	17°C	16°C	15°C
MAY 11	15°C	18°C	16°C	14°C
MAY 12	15°C	18°C	16°C	14°C
MAY 13	16°C	18°C	17°C	14°C
MAY 14	15°C	17°C	16°C	14°C
MAY 15	16°C	17°C	17°C	14°C
MAY 16	17°C	19°C	18°C	15°C
MAY 17	17°C	18°C	18°C	16°C
MAY 18	17°C	18°C	18°C	17°C
MAY 19	18°C	19°C	19°C	17°C
MAY 20	18°C	20°C	20°C	17°C
MAY 21	19°C	20°C	20°C	17°C
MAY 22	19°C	20°C	21°C	16°C
MAY 23	18°C	19°C	21°C	16°C
MAY 24	18°C	19°C	20°C	17°C
MAY 25	18°C	18°C	21°C	17°C
MAY 26	18°C	17°C	20°C	18°C
MAY 27	19°C	18°C	21°C	18°C
MAY 28	19°C	18°C	21°C	19°C
MAY 29	19°C	17°C	21°C	19°C
MAY 30	19°C	18°C	19°C	20°C
MAY 31	19°C	18°C	19°C	21°C

May: Climate and Swimming Opportunities

Average Night Air Temperature

12°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

104 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

8 hrs

Average Wind Speed

12 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.