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

75.0

°F

October 22, 07:18

Trend:

decreasing

Yesterday:

75.4°F

Tomorrow:

74.9°F

Sunrise:

06:21

Sunset:

17:28

Day Length:

11 h. 7 min.

Hiroshima in October

Minimum:

54.9°F

Average:

56.4°F

Maximum:

57.6°F

Sea water temperature in Hiroshima today

As of now, in Hiroshima, the water temperature is 75.0°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.2°F higher 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 maximum temperature for this date. The maximum temperature recorded for this date was 74.8°F on 2024, while the historical minimum was 71.3°F on 2015.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 74.3°F, the minimum temperature may reach 73.7°F, and the maximum might stay at 74.9°F.

Daily water temperature in Hiroshima

Date Current Year

actual* / forecast**

last year 10 years average
Oct 8 76.9°F 77.6°F 75.6°F
Oct 9 77.6°F 77.1°F 75.4°F
Oct 10 77.7°F 76.7°F 75.3°F
Oct 11 77.1°F 76.4°F 75.1°F
Oct 12 76.4°F 76.8°F 74.9°F
Oct 13 77.9°F 76.3°F 74.9°F
Oct 14 77.4°F 75.8°F 74.5°F
Oct 15 77.2°F 76.1°F 74.5°F
Oct 16 77.7°F 75.8°F 74.4°F
Oct 17 77.4°F 76.1°F 74.2°F
Oct 18 76.9°F 76.9°F 74.2°F
Oct 19 76.2°F 76.5°F 73.8°F
Oct 20 75.8°F 76.2°F 73.6°F
Oct 21 75.4°F 75.9°F 73.2°F
Oct 22 75.0°F 74.8°F 72.8°F
Oct 23 74.9°F 74.9°F 72.6°F
Oct 24 74.7°F 74.6°F 72.5°F
Oct 25 74.6°F 74.5°F 72.4°F
Oct 26 74.2°F 74.1°F 72.0°F
Oct 27 74.0°F 74.3°F 71.8°F
Oct 28 73.9°F 74.0°F 71.7°F
Oct 29 73.7°F 73.7°F 71.5°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 113 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, 76.6°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Iwakuni 75.6°F 21mi
Matsuyama 75.0°F 43mi
Fukuyama 76.2°F 53mi
Saijō 75.9°F 54mi
Niihama 76.2°F 58mi

* current water temperature in this city

** straight line distance from Hiroshima