Port Saint Johns — Water Temperature in July

Water Temperature Range

17°C

minimum

21°C

average

24°C

maximum

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

July: Climate and Swimming Opportunities

Average Night Air Temperature

12°C

Average Day Air Temperature

23°C

Precipitation Amount per Month

39 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

7 hrs

Average Wind Speed

11 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.