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

82.5

°F

September 16, 11:07

Trend:

stable

Yesterday:

82.5°F

Tomorrow:

82.2°F

Sunrise:

05:57

Sunset:

18:20

Day Length:

12 h. 23 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 82.5°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 3.6°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 fall a bit.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 82.7°F on 2024, while the historical minimum was 75.4°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 81.3°F, the minimum temperature may reach 80.4°F, and the maximum might stay at 82.2°F.

Daily water temperature in Ōita

Date Current Year

actual* / forecast**

last year 10 years average
Sep 2 84.3°F 79.8°F 80.5°F
Sep 3 83.5°F 79.8°F 80.2°F
Sep 4 82.2°F 80.8°F 80.1°F
Sep 5 81.4°F 80.5°F 79.9°F
Sep 6 81.1°F 81.4°F 79.8°F
Sep 7 81.6°F 81.5°F 79.8°F
Sep 8 82.7°F 82.0°F 79.5°F
Sep 9 82.6°F 81.5°F 79.3°F
Sep 10 82.1°F 82.9°F 79.6°F
Sep 11 83.5°F 82.8°F 79.6°F
Sep 12 83.8°F 83.2°F 79.7°F
Sep 13 82.7°F 82.7°F 79.6°F
Sep 14 82.6°F 83.4°F 79.5°F
Sep 15 82.5°F 83.0°F 78.9°F
Sep 16 82.5°F 82.7°F 78.9°F
Sep 17 82.2°F 83.5°F 78.6°F
Sep 18 82.0°F 83.6°F 78.4°F
Sep 19 81.7°F 83.1°F 78.1°F
Sep 20 81.2°F 82.5°F 77.6°F
Sep 21 81.0°F 82.3°F 77.4°F
Sep 22 80.7°F 81.7°F 77.1°F
Sep 23 80.4°F 80.3°F 76.8°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, 76.6°F in Summer, and 73.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Beppu 83.1°F 7mi
Kumamoto 82.7°F 60mi
Kitakyushu 84.4°F 61mi
Shimonoseki 84.2°F 63mi
Iwakuni 81.3°F 73mi

* current water temperature in this city

** straight line distance from Ōita