Black Point Green Point — Water Temperature in May

Water Temperature Range

9°C

minimum

13°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

20°C

Average Day Air Temperature

31°C

Precipitation Amount per Month

62 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

10 hrs

Average Wind Speed

13 km/h

Average Humidity

71%

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.