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

76.2

°F

October 16, 12:36

Trend:

decreasing

Yesterday:

76.4°F

Tomorrow:

76.1°F

Sunrise:

06:18

Sunset:

17:40

Day Length:

11 h. 22 min.

Ōita in October

Minimum:

57.1°F

Average:

59.2°F

Maximum:

60.5°F

Sea water temperature in Ōita today

As of now, in Ōita, the water temperature is 76.2°F. It's safe to say that the water is comfortably warm for various water-related activities. 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 slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 77.9°F on 2025, while the historical minimum was 72.7°F on 2018.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 75.5°F, the minimum temperature may reach 74.9°F, and the maximum might stay at 76.1°F.

Daily water temperature in Ōita

Date Current Year

actual* / forecast**

last year 10 years average
Oct 2 77.9°F 78.7°F 76.8°F
Oct 3 77.7°F 78.4°F 76.8°F
Oct 4 77.6°F 78.0°F 76.7°F
Oct 5 77.2°F 77.7°F 76.5°F
Oct 6 78.1°F 78.2°F 76.6°F
Oct 7 77.4°F 78.5°F 76.3°F
Oct 8 77.0°F 78.0°F 76.0°F
Oct 9 76.2°F 77.7°F 75.8°F
Oct 10 75.9°F 77.3°F 75.7°F
Oct 11 76.0°F 77.5°F 75.5°F
Oct 12 75.9°F 77.4°F 75.3°F
Oct 13 76.4°F 78.4°F 75.2°F
Oct 14 76.5°F 77.9°F 75.1°F
Oct 15 76.4°F 77.8°F 74.7°F
Oct 16 76.2°F 77.9°F 74.6°F
Oct 17 76.1°F 78.0°F 74.4°F
Oct 18 75.9°F 77.5°F 74.3°F
Oct 19 75.7°F 77.0°F 74.0°F
Oct 20 75.7°F 76.6°F 74.0°F
Oct 21 75.5°F 76.2°F 73.8°F
Oct 22 75.1°F 75.8°F 73.5°F
Oct 23 74.9°F 75.2°F 73.2°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 76.2°F 7mi
Kumamoto 77.5°F 60mi
Kitakyushu 75.6°F 61mi
Shimonoseki 75.5°F 63mi
Iwakuni 76.4°F 73mi

* current water temperature in this city

** straight line distance from Ōita