Yeosu Strait — Water Temperature in May

Water Temperature Range

13°C

minimum

15°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

21°C

Precipitation Amount per Month

140 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

7 hrs

Average Wind Speed

11 km/h

Average Humidity

70%

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.