Port Stephens — Water Temperature in May

Water Temperature Range

19°C

minimum

22°C

average

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

Climate and Swimming Opportunities in Port Stephens in May

Average Day Air Temperature

21°C

Average Night Air Temperature

12°C

Precipitation Amount per Month

131 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

6 hrs

Average Wind Speed

13 km/h

Average Humidity

70%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.