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

82.7

°F

August 30, 04:16

Trend:

decreasing

Yesterday:

82.7°F

Tomorrow:

82.6°F

Sunrise:

05:41

Sunset:

18:40

Day Length:

12 h. 59 min.

Hiroshima in September

Minimum:

55.1°F

Average:

56.7°F

Maximum:

57.7°F

Sea water temperature in Hiroshima today

As of now, in Hiroshima, the water temperature is 82.7°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 2.0°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 stay about the same.

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 83.4°F on 2024, while the historical minimum was 75.5°F on 2015.

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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 81.9°F, the minimum temperature may reach 81.6°F, and the maximum might stay at 82.6°F.

Daily water temperature in Hiroshima

Date Current Year

actual* / forecast**

last year 10 years average
Aug 16 82.4°F 85.4°F 82.2°F
Aug 17 83.9°F 85.1°F 82.0°F
Aug 18 84.6°F 84.5°F 81.5°F
Aug 19 83.4°F 84.8°F 81.5°F
Aug 20 84.4°F 84.4°F 81.6°F
Aug 21 83.6°F 82.5°F 81.6°F
Aug 22 84.1°F 83.6°F 81.6°F
Aug 23 84.4°F 83.0°F 81.7°F
Aug 24 83.6°F 83.6°F 81.3°F
Aug 25 83.8°F 83.9°F 81.3°F
Aug 26 84.1°F 83.6°F 81.2°F
Aug 27 83.7°F 84.7°F 81.2°F
Aug 28 82.2°F 84.5°F 81.0°F
Aug 29 82.7°F 83.8°F 80.6°F
Aug 30 82.7°F 83.4°F 80.6°F
Aug 31 82.6°F 83.5°F 80.5°F
Sep 1 82.3°F 82.2°F 80.3°F
Sep 2 81.9°F 80.7°F 79.9°F
Sep 3 81.7°F 80.4°F 79.7°F
Sep 4 81.6°F 81.5°F 79.6°F
Sep 5 81.6°F 80.6°F 79.6°F
Sep 6 81.6°F 81.0°F 79.6°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 73.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Iwakuni 82.6°F 21mi
Matsuyama 77.9°F 43mi
Fukuyama 86.0°F 53mi
Saijō 84.9°F 54mi
Niihama 86.1°F 58mi

* current water temperature in this city

** straight line distance from Hiroshima