Saint John's — Water Temperature in May

Water Temperature Range

26°C

minimum

27°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

24°C

Average Day Air Temperature

30°C

Precipitation Amount per Month

94 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

8 hrs

Average Wind Speed

18 km/h

Average Humidity

78%

At such water and air temperatures, swimming feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.