San Clemente — Water Temperature in July

Water Temperature Range

17°C

minimum

20°C

average

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

July: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

25°C

Precipitation Amount per Month

1 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

11 hrs

Average Wind Speed

13 km/h

Average Humidity

69%

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.