Gangneung — Water Temperature in April

Water Temperature Range

7°C

minimum

12°C

average

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

April: Climate and Swimming Opportunities

Average Night Air Temperature

7°C

Average Day Air Temperature

18°C

Precipitation Amount per Month

67 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

7 hrs

Average Wind Speed

11 km/h

Average Humidity

63%

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.