What is the current water temperature in Ōita?

Q: What is the current water temperature in Ōita?

As of now, in Ōita, the water temperature is 14.53°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Japan > Ōita

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.

58.2

°F

January 11, 20:11

Trend:

stable

Yesterday:

59.9°F

Tomorrow:

58.2°F

Sunrise:

07:18

Sunset:

17:25

Day Length:

10 h. 7 min.

Ōita in January

Minimum:

58.5°F

Average:

59.8°F

Maximum:

61.1°F

Sea water temperature in Ōita today

As of now, in Ōita, the water temperature is 58.2°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.2°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 stay about the same.

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 60.6°F on 2025, while the historical minimum was 57.7°F on 2021.

latest data

last year

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 57.1°F, the minimum temperature may reach 56.4°F, and the maximum might stay at 58.2°F.

Daily water temperature in Ōita

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	60.9°F	59.6°F	59.8°F
Jan 2	61.3°F	59.2°F	59.7°F
Jan 3	60.4°F	59.8°F	59.4°F
Jan 4	60.1°F	58.9°F	59.3°F
Jan 5	60.2°F	58.9°F	59.3°F
Jan 6	60.5°F	60.0°F	59.4°F
Jan 7	60.0°F	59.9°F	59.1°F
Jan 8	59.3°F	60.2°F	59.1°F
Jan 9	59.5°F	60.4°F	59.2°F
Jan 10	59.9°F	60.4°F	59.2°F
Jan 11	58.2°F	60.6°F	59.3°F
Jan 12	58.2°F	60.8°F	59.4°F
Jan 13	57.6°F	59.0°F	58.7°F
Jan 14	57.1°F	58.9°F	58.3°F
Jan 15	57.2°F	58.8°F	58.3°F
Jan 16	56.9°F	58.6°F	58.0°F
Jan 17	56.6°F	58.5°F	57.8°F
Jan 18	56.4°F	58.4°F	57.6°F
Dec 28	61.3°F	61.0°F	60.6°F
Dec 29	61.1°F	60.8°F	60.4°F
Dec 30	60.9°F	60.8°F	60.1°F
Dec 31	61.6°F	59.6°F	60.0°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 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, 59.4°F in Spring, 76.8°F in Summer, and 74.2°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Beppu	57.1°F	7mi
Kumamoto	55.2°F	60mi
Kitakyushu	56.5°F	61mi
Shimonoseki	56.5°F	63mi
Iwakuni	57.1°F	73mi

* current water temperature in this city

** straight line distance from Ōita