Palo Alto — Water Temperature in July

Water Temperature Range

11°C

minimum

14°C

average

18°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	2025	2024	2023	2022
JUL 1	13°C	12°C	16°C	11°C
JUL 2	13°C	11°C	16°C	15°C
JUL 3	14°C	12°C	16°C	15°C
JUL 4	15°C	12°C	17°C	14°C
JUL 5	14°C	12°C	17°C	12°C
JUL 6	13°C	12°C	17°C	13°C
JUL 7	14°C	12°C	17°C	11°C
JUL 8	14°C	12°C	17°C	15°C
JUL 9	13°C	12°C	16°C	14°C
JUL 10	14°C	13°C	17°C	12°C
JUL 11	13°C	13°C	17°C	12°C
JUL 12	14°C	12°C	16°C	15°C
JUL 13	14°C	13°C	16°C	11°C
JUL 14	14°C	13°C	16°C	14°C
JUL 15	13°C	13°C	16°C	11°C
JUL 16	13°C	13°C	15°C	12°C
JUL 17	14°C	13°C	16°C	13°C
JUL 18	14°C	13°C	16°C	11°C
JUL 19	14°C	14°C	16°C	14°C
JUL 20	14°C	14°C	16°C	14°C
JUL 21	14°C	14°C	16°C	15°C
JUL 22	14°C	13°C	16°C	12°C
JUL 23	14°C	14°C	16°C	11°C
JUL 24	14°C	14°C	16°C	11°C
JUL 25	14°C	14°C	16°C	14°C
JUL 26	14°C	14°C	16°C	14°C
JUL 27	13°C	14°C	16°C	11°C
JUL 28	14°C	14°C	16°C	13°C
JUL 29	14°C	14°C	16°C	12°C
JUL 30	14°C	14°C	17°C	15°C
JUL 31	15°C	14°C	16°C	14°C

July: Climate and Swimming Opportunities

Average Night Air Temperature

15°C

Average Day Air Temperature

21°C

Precipitation Amount per Month

0 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

11 hrs

Average Wind Speed

14 km/h

Average Humidity

66%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.