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

84.1

°F

August 30, 04:15

Trend:

decreasing

Yesterday:

84.2°F

Tomorrow:

84.0°F

Sunrise:

05:46

Sunset:

18:42

Day Length:

12 h. 56 min.

Ōita in September

Minimum:

57.6°F

Average:

59.1°F

Maximum:

60.7°F

Sea water temperature in Ōita today

As of now, in Ōita, the water temperature is 84.1°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 3.4°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 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 82.1°F on 2023, while the historical minimum was 76.9°F on 2015.

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. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 83.4°F, the minimum temperature may reach 83.1°F, and the maximum might stay at 84.0°F.

Daily water temperature in Ōita

Date Current Year

actual* / forecast**

last year 10 years average
Aug 16 83.0°F 85.4°F 81.9°F
Aug 17 83.2°F 86.1°F 81.8°F
Aug 18 83.3°F 85.2°F 81.5°F
Aug 19 83.1°F 85.0°F 81.4°F
Aug 20 83.2°F 84.5°F 81.5°F
Aug 21 82.9°F 84.1°F 81.5°F
Aug 22 82.9°F 84.4°F 81.8°F
Aug 23 82.2°F 84.3°F 81.9°F
Aug 24 82.2°F 83.6°F 81.7°F
Aug 25 84.0°F 84.1°F 81.9°F
Aug 26 83.9°F 84.5°F 81.7°F
Aug 27 84.2°F 83.2°F 81.4°F
Aug 28 82.9°F 82.7°F 81.2°F
Aug 29 84.2°F 82.3°F 80.8°F
Aug 30 84.1°F 81.9°F 80.8°F
Aug 31 84.0°F 80.5°F 80.6°F
Sep 1 83.8°F 80.2°F 80.4°F
Sep 2 83.5°F 79.8°F 80.1°F
Sep 3 83.3°F 79.8°F 79.9°F
Sep 4 83.2°F 80.8°F 79.9°F
Sep 5 83.2°F 80.5°F 79.8°F
Sep 6 83.1°F 81.4°F 79.7°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 Ōita by month

In Ōita, the months July through October offer comfortable swimming conditions, which amounts to 115 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, 76.5°F in Summer, and 73.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Beppu 84.1°F 7mi
Kumamoto 85.4°F 60mi
Kitakyushu 86.1°F 61mi
Shimonoseki 85.4°F 63mi
Iwakuni 82.6°F 73mi

* current water temperature in this city

** straight line distance from Ōita