All data are in degrees Fahrenheit

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Water temperature in Beppu

Detailed information about the current water temperature in Beppu. 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 Beppu now

83.6

°F

August 30, 09:41

Trend:

stable

Yesterday:

83.5°F

Tomorrow:

83.5°F

Sunrise:

05:46

Sunset:

18:43

Day Length:

12 h. 57 min.

Beppu in September

Minimum:

57.9°F

Average:

59.2°F

Maximum:

60.6°F

Sea water temperature in Beppu today

As of now, in Beppu, the water temperature is 83.6°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 1.6°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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 84.6°F on 2025, while the historical minimum was 79.1°F on 2016.

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 82.7°F, the minimum temperature may reach 82.2°F, and the maximum might stay at 83.5°F.

Daily water temperature in Beppu

Date Current Year

actual* / forecast**

last year 10 years average
Aug 16 80.0°F 84.5°F 82.3°F
Aug 17 80.9°F 83.6°F 82.3°F
Aug 18 81.3°F 83.5°F 82.0°F
Aug 19 81.7°F 84.0°F 82.1°F
Aug 20 81.7°F 84.3°F 82.2°F
Aug 21 82.1°F 84.3°F 82.3°F
Aug 22 82.0°F 84.1°F 82.7°F
Aug 23 83.0°F 83.7°F 82.8°F
Aug 24 83.6°F 83.2°F 82.6°F
Aug 25 83.5°F 85.0°F 82.8°F
Aug 26 84.5°F 85.1°F 82.8°F
Aug 27 83.1°F 84.6°F 82.5°F
Aug 28 83.4°F 83.4°F 82.1°F
Aug 29 83.5°F 84.1°F 81.9°F
Aug 30 83.6°F 84.6°F 82.0°F
Aug 31 83.5°F 85.3°F 81.9°F
Sep 1 83.1°F 84.5°F 81.5°F
Sep 2 83.0°F 85.2°F 81.4°F
Sep 3 82.7°F 84.3°F 81.1°F
Sep 4 82.3°F 82.0°F 80.7°F
Sep 5 82.2°F 81.5°F 80.6°F
Sep 6 82.3°F 83.1°F 80.7°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 Beppu by month

In Beppu, the months July through October offer comfortable swimming conditions, which amounts to 119 swimming days.
The warmest water in Beppu was recorded on August 6, 2024, reaching a 87.8°F. While the coldest temperature occurred on March 26, 2025, dipping to 51.2°F. The average readings by season are 59.2°F in Winter, 59.8°F in Spring, 77.4°F in Summer, and 74.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Ōita 82.9°F 7mi
Kitakyushu 84.6°F 54mi
Shimonoseki 84.1°F 57mi
Kumamoto 87.6°F 57mi
Iwakuni 83.9°F 74mi

* current water temperature in this city

** straight line distance from Beppu