All data are in degrees Fahrenheit

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Water temperature in Ōita

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

80.3

°F

August 17, 11:43

Trend:

stable

Yesterday:

80.3°F

Tomorrow:

80.0°F

Sunrise:

05:37

Sunset:

18:58

Day Length:

13 h. 21 min.

Ōita in August

Minimum:

57.6°F

Average:

59.1°F

Maximum:

60.2°F

Sea water temperature in Ōita today

As of now, in Ōita, the water temperature is 80.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.8°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 86.1°F on 2024, while the historical minimum was 79.3°F on 2019.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 80.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Ōita

Date Current Year

actual* / forecast**

last year 10 years average
Aug 3 87.0°F 82.5°F 82.2°F
Aug 4 86.3°F 82.3°F 82.6°F
Aug 5 86.2°F 83.5°F 82.9°F
Aug 6 84.2°F 84.6°F 82.6°F
Aug 7 84.0°F 84.4°F 82.5°F
Aug 8 83.2°F 84.0°F 82.6°F
Aug 9 83.0°F 83.4°F 82.0°F
Aug 10 83.0°F 82.5°F 81.1°F
Aug 11 82.5°F 82.4°F 81.0°F
Aug 12 81.4°F 82.3°F 81.1°F
Aug 13 82.3°F 82.0°F 81.3°F
Aug 14 80.4°F 81.2°F 81.3°F
Aug 15 80.5°F 81.6°F 81.7°F
Aug 16 80.3°F 83.0°F 82.1°F
Aug 17 80.3°F 83.2°F 82.1°F
Aug 18 80.0°F 83.3°F 81.8°F
Aug 19 79.9°F 83.1°F 81.7°F
Aug 20 80.0°F 83.2°F 81.8°F
Aug 21 80.0°F 82.9°F 81.8°F
Aug 22 80.3°F 82.9°F 82.1°F
Aug 23 80.3°F 82.2°F 82.1°F
Aug 24 80.1°F 82.2°F 81.9°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 Ōita by month

In Ōita, the months July through October offer comfortable swimming conditions, which amounts to 117 swimming days.
The warmest water in Ōita was recorded on August 5, 2024, reaching a 87.4°F. While the coldest temperature occurred on March 26, 2025, dipping to 49.6°F. The average readings by season are 59.2°F in Winter, 59.5°F in Spring, 76.9°F in Summer, and 74.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Beppu 79.8°F 7mi
Kumamoto 82.8°F 60mi
Kitakyushu 84.0°F 61mi
Shimonoseki 82.0°F 63mi
Iwakuni 81.7°F 73mi

* current water temperature in this city

** straight line distance from Ōita