Fremont — Water Temperature in April

Water Temperature Range

10°C

minimum

13°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

9°C

Average Day Air Temperature

19°C

Precipitation Amount per Month

39 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

10 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 very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.