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

82.6

°F

September 19, 07:14

Trend:

decreasing

Yesterday:

83.0°F

Tomorrow:

82.1°F

Sunrise:

06:00

Sunset:

18:16

Day Length:

12 h. 16 min.

Beppu in September

Minimum:

57.9°F

Average:

59.1°F

Maximum:

60.6°F

Sea water temperature in Beppu today

As of now, in Beppu, the water temperature is 82.6°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 4.3°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 slightly 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 83.5°F on 2024, while the historical minimum was 74.9°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 81.4°F, the minimum temperature may reach 80.8°F, and the maximum might stay at 82.1°F.

Daily water temperature in Beppu

Date Current Year

actual* / forecast**

last year 10 years average
Sep 5 81.5°F 81.6°F 80.3°F
Sep 6 83.1°F 82.8°F 80.3°F
Sep 7 82.9°F 82.6°F 80.1°F
Sep 8 84.0°F 83.3°F 80.0°F
Sep 9 84.0°F 82.6°F 79.9°F
Sep 10 83.3°F 84.8°F 80.1°F
Sep 11 84.0°F 84.2°F 80.1°F
Sep 12 84.0°F 84.1°F 80.2°F
Sep 13 83.0°F 83.6°F 80.0°F
Sep 14 82.8°F 83.9°F 79.9°F
Sep 15 83.1°F 83.3°F 79.6°F
Sep 16 83.5°F 83.2°F 79.7°F
Sep 17 83.2°F 82.9°F 79.3°F
Sep 18 83.0°F 83.8°F 78.7°F
Sep 19 82.6°F 83.5°F 78.3°F
Sep 20 82.1°F 83.0°F 77.9°F
Sep 21 82.0°F 82.9°F 77.7°F
Sep 22 81.6°F 82.2°F 77.4°F
Sep 23 81.4°F 81.2°F 77.1°F
Sep 24 81.0°F 80.0°F 76.7°F
Sep 25 80.9°F 79.3°F 76.6°F
Sep 26 80.8°F 79.4°F 76.5°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 Beppu by month

In Beppu, the months July through October offer comfortable swimming conditions, which amounts to 117 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, 77.0°F in Summer, and 74.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Ōita 81.9°F 7mi
Kitakyushu 85.0°F 54mi
Shimonoseki 85.2°F 57mi
Kumamoto 85.0°F 57mi
Iwakuni 81.9°F 74mi

* current water temperature in this city

** straight line distance from Beppu