Akita — Water Temperature in May

Water Temperature Range

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

8°C

Average Day Air Temperature

16°C

Precipitation Amount per Month

95 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

6 hrs

Average Wind Speed

14 km/h

Average Humidity

75%

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.