Hachijojima Island — Water Temperature in March

Water Temperature Range

12°C

minimum

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

March: Climate and Swimming Opportunities

Average Night Air Temperature

4°C

Average Day Air Temperature

13°C

Precipitation Amount per Month

130 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

5 hrs

Average Wind Speed

13 km/h

Average Humidity

68%

With such a ratio between the average monthly temperatures of water and air, swimming usually feels uncomfortably cold. Even a short dip can leave you chilled, especially once you get out into the cool air.