Fremont — Water Temperature in May

Water Temperature Range

10°C

minimum

14°C

average

18°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

11°C

Average Day Air Temperature

19°C

Precipitation Amount per Month

8 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.