Shanghai — Water Temperature in April

Water Temperature Range

9°C

minimum

14°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

11°C

Average Day Air Temperature

19°C

Precipitation Amount per Month

78 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

5 hrs

Average Wind Speed

13 km/h

Average Humidity

77%

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.