All data are in degrees Fahrenheit

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Water temperature in Hiroshima

Detailed information about the current water temperature in Hiroshima. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Hiroshima now

54.7

°F

January 24, 12:48

Trend:

decreasing

Yesterday:

54.9°F

Tomorrow:

54.3°F

Sunrise:

07:13

Sunset:

17:31

Day Length:

10 h. 18 min.

Hiroshima in January

Minimum:

56.6°F

Average:

58.6°F

Maximum:

59.9°F

Sea water temperature in Hiroshima today

As of now, in Hiroshima, the water temperature is 54.7°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.9°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 57.2°F on 2020, while the historical minimum was 54.4°F on 2018.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 53.6°F, the minimum temperature may reach 53.0°F, and the maximum might stay at 54.3°F.

Daily water temperature in Hiroshima

Date Current Year

actual* / forecast**

last year 10 years average
Jan 10 57.8°F 57.2°F 56.7°F
Jan 11 57.6°F 57.0°F 56.5°F
Jan 12 57.3°F 56.8°F 56.2°F
Jan 13 57.5°F 56.9°F 56.4°F
Jan 14 57.7°F 56.8°F 56.6°F
Jan 15 57.9°F 57.0°F 56.6°F
Jan 16 57.5°F 57.1°F 56.8°F
Jan 17 56.6°F 56.5°F 56.6°F
Jan 18 56.5°F 56.6°F 56.6°F
Jan 19 54.6°F 56.8°F 56.5°F
Jan 20 54.7°F 56.7°F 56.2°F
Jan 21 55.1°F 56.1°F 55.9°F
Jan 22 55.0°F 54.6°F 55.7°F
Jan 23 54.9°F 54.7°F 55.7°F
Jan 24 54.7°F 54.6°F 55.6°F
Jan 25 54.3°F 54.8°F 55.2°F
Jan 26 54.0°F 53.8°F 54.8°F
Jan 27 53.9°F 53.9°F 54.7°F
Jan 28 53.4°F 53.9°F 54.3°F
Jan 29 53.3°F 52.4°F 54.2°F
Jan 30 53.1°F 52.6°F 54.0°F
Jan 31 53.0°F 52.8°F 53.9°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Hiroshima by month

In Hiroshima, the months July through October offer comfortable swimming conditions, which amounts to 114 swimming days.
The warmest water in Hiroshima was recorded on August 3, 2024, reaching a 86.4°F. While the coldest temperature occurred on February 20, 2018, dipping to 49.3°F. The average readings by season are 56.9°F in Winter, 58.1°F in Spring, 76.8°F in Summer, and 73.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Iwakuni 54.7°F 21mi
Matsuyama 56.2°F 43mi
Fukuyama 52.7°F 53mi
Saijō 55.7°F 54mi
Niihama 54.8°F 58mi

* current water temperature in this city

** straight line distance from Hiroshima