Port Willunga — Water Temperature in May

Water Temperature Range

14°C

minimum

17°C

average

19°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

	2026	2025	2024	2023
MAY 1	20°C	19°C	19°C	17°C
MAY 2	20°C	20°C	19°C	17°C
MAY 3	20°C	20°C	19°C	16°C
MAY 4	20°C	18°C	18°C	16°C
MAY 5	20°C	18°C	19°C	15°C
MAY 6	20°C	18°C	18°C	16°C
MAY 7	-	18°C	19°C	16°C
MAY 8	-	19°C	18°C	16°C
MAY 9	-	19°C	18°C	16°C
MAY 10	-	19°C	19°C	16°C
MAY 11	-	19°C	18°C	16°C
MAY 12	-	19°C	18°C	16°C
MAY 13	-	19°C	18°C	17°C
MAY 14	-	19°C	17°C	16°C
MAY 15	-	18°C	18°C	16°C
MAY 16	-	18°C	18°C	16°C
MAY 17	-	19°C	17°C	16°C
MAY 18	-	18°C	17°C	16°C
MAY 19	-	18°C	17°C	17°C
MAY 20	-	18°C	17°C	17°C
MAY 21	-	18°C	17°C	16°C
MAY 22	-	18°C	17°C	16°C
MAY 23	-	18°C	17°C	16°C
MAY 24	-	18°C	18°C	16°C
MAY 25	-	18°C	17°C	15°C
MAY 26	-	17°C	17°C	15°C
MAY 27	-	18°C	16°C	16°C
MAY 28	-	17°C	16°C	15°C
MAY 29	-	17°C	16°C	16°C
MAY 30	-	17°C	17°C	16°C
MAY 31	-	17°C	16°C	16°C

Climate and Swimming Opportunities in Port Willunga in May

Average Day Air Temperature

18°C

Average Night Air Temperature

10°C

Precipitation Amount per Month

55 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

5 hrs

Average Wind Speed

15 km/h

Average Humidity

67%

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.