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

79.9

°F

September 8, 15:56

Trend:

decreasing

Yesterday:

80.0°F

Tomorrow:

79.7°F

Sunrise:

05:52

Sunset:

18:31

Day Length:

12 h. 39 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 79.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.6°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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 84.0°F on 2025, while the historical minimum was 77.8°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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 79.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Beppu

Date Current Year

actual* / forecast**

last year 10 years average
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 82.1°F
Aug 30 84.7°F 84.6°F 82.2°F
Aug 31 84.6°F 85.3°F 82.1°F
Sep 1 84.4°F 84.5°F 81.8°F
Sep 2 83.3°F 85.2°F 81.5°F
Sep 3 81.8°F 84.3°F 81.1°F
Sep 4 81.8°F 82.0°F 80.8°F
Sep 5 81.0°F 81.5°F 80.6°F
Sep 6 80.7°F 83.1°F 80.7°F
Sep 7 80.0°F 82.9°F 80.5°F
Sep 8 79.9°F 84.0°F 80.4°F
Sep 9 79.7°F 84.0°F 80.3°F
Sep 10 80.0°F 83.3°F 80.5°F
Sep 11 80.0°F 84.0°F 80.5°F
Sep 12 80.1°F 84.0°F 80.6°F
Sep 13 79.9°F 83.0°F 80.5°F
Sep 14 79.8°F 82.8°F 80.3°F
Sep 15 79.4°F 83.1°F 80.0°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 79.2°F 7mi
Kitakyushu 84.2°F 54mi
Shimonoseki 83.7°F 57mi
Kumamoto 83.0°F 57mi
Iwakuni 80.5°F 74mi

* current water temperature in this city

** straight line distance from Beppu