Wainui Bay — Water Temperature in May

Water Temperature Range

16°C

minimum

18°C

average

21°C

maximum

Water Temperature Chart for May

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

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

Climate and Swimming Opportunities in Wainui Bay in May

Average Day Air Temperature

17°C

Average Night Air Temperature

11°C

Precipitation Amount per Month

124 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

5 hrs

Average Wind Speed

15 km/h

Average Humidity

89%

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.