Sea Temperature in Hiroshima in December

Complete information on the sea temperature range in the Seto Inland Sea in Hiroshima in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Hiroshima. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Hiroshima in December

12°C

MINIMUN

16°C

AVERAGE

20°C

MAXIMUM

Historical Data of Water Temperature in December in Hiroshima

Water Temperature Chart for Seto Inland Sea in Hiroshima in December

Sea Temperature Table in Hiroshima in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	19°C	19°C	19°C	18.8°C
Dec 2	19°C	19°C	20°C	19.0°C
Dec 3	19°C	18°C	19°C	18.5°C
Dec 4	19°C	18°C	19°C	18.5°C
Dec 5	18°C	18°C	18°C	18.0°C
Dec 6	18°C	17°C	19°C	17.8°C
Dec 7	18°C	18°C	18°C	18.0°C
Dec 8	18°C	18°C	18°C	18.3°C
Dec 9	17°C	18°C	18°C	17.8°C
Dec 10	17°C	17°C	18°C	17.3°C
Dec 11	17°C	17°C	18°C	17.3°C
Dec 12	17°C	17°C	18°C	17.3°C
Dec 13	17°C	17°C	17°C	17.0°C
Dec 14	17°C	17°C	17°C	17.0°C
Dec 15	16°C	17°C	17°C	16.8°C
Dec 16	16°C	17°C	17°C	16.8°C
Dec 17	17°C	17°C	17°C	17.0°C
Dec 18	16°C	16°C	17°C	16.3°C
Dec 19	16°C	17°C	17°C	16.8°C
Dec 20	16°C	17°C	16°C	16.3°C
Dec 21	16°C	16°C	16°C	15.8°C
Dec 22	16°C	16°C	16°C	15.8°C
Dec 23	16°C	16°C	16°C	16.0°C
Dec 24	16°C	16°C	16°C	15.8°C
Dec 25	15°C	16°C	16°C	15.5°C
Dec 26	15°C	16°C	16°C	15.5°C
Dec 27	15°C	15°C	15°C	15.0°C
Dec 28	15°C	16°C	15°C	15.3°C
Dec 29	15°C	15°C	15°C	14.8°C
Dec 30	15°C	15°C	15°C	14.8°C

Hiroshima Climate and Swimming Opportunities in December

12°C

Average Day Air Temperature

3°C

Average Night Air Temperature

55 mm

Precipitation Amount per Month

10 days

Number of Rainy Days

10 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

12 km/h

Average Wind Speed

70%

Average
humidity

Hiroshima lies within the Hiroshima Prefecture in Japan. The average daytime temperature in Hiroshima in December is 12°C (53°F), while the nighttime average is 3°C (37°F). There are typically 10 rainy days during the month, with a total precipitation of 55 mm (2.2 inches). The daylight duration in December in Hiroshima is 10 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 12 km/h (7 mph), and the humidity level is around 70%.

The water temperature in Hiroshima in December ranges from 14°C to 19°C (57°F to 66°F). At the beginning of the month, the average temperature is around 18°C (64°F), shifting to 17°C (63°F) by mid-December and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Hiroshima for December is 17°C (63°F).

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Hiroshima

What is the sea temperature in Hiroshima in December?

The water temperature in the Seto Inland Sea in Hiroshima in December ranges from 14°C to 19°C (57°F to 66°F).

Is it possible to swim in the Sea of Japan in Aomori in December?

The average sea temperature in Aomori in December is 14°C (57°F), and the air temperature is 2°C (35°F), so the water is chilly, and the cold air makes getting out of the water uncomfortable. Only experienced swimmers should consider it.