Opito Bay — Water Temperature in May

Water Temperature Range

15°C

minimum

18°C

average

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

Climate and Swimming Opportunities in Opito Bay in May

Average Day Air Temperature

17°C

Average Night Air Temperature

10°C

Precipitation Amount per Month

112 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

4 hrs

Average Wind Speed

17 km/h

Average Humidity

85%

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.