All data are in degrees Fahrenheit

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Japan > Ōtsu

Water temperature in Ōtsu

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

56.9

°F

April 17, 15:08

Trend:

increasing

Yesterday:

56.3°F

Tomorrow:

56.9°F

Sunrise:

05:23

Sunset:

18:30

Day Length:

13 h. 7 min.

Ōtsu in April

Minimum:

52.3°F

Average:

54.3°F

Maximum:

55.7°F

Sea water temperature in Ōtsu today

As of now, in Ōtsu, the water temperature is 56.9°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 0.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 59.9°F on 2022, while the historical minimum was 53.1°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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 57.8°F, with minimum temperature starting at 56.9°F, while the maximum might reach 58.6°F.

Daily water temperature in Ōtsu

Date Current Year

actual* / forecast**

 last year 10 years average
Apr 3 55.0°F 53.6°F 54.2°F
Apr 4 54.4°F 53.7°F 54.4°F
Apr 5 53.2°F 53.4°F 54.4°F
Apr 6 53.3°F 53.8°F 54.2°F
Apr 7 54.0°F 55.9°F 54.6°F
Apr 8 55.1°F 56.4°F 55.3°F
Apr 9 55.1°F 56.6°F 55.8°F
Apr 10 55.3°F 56.6°F 55.9°F
Apr 11 55.6°F 56.0°F 55.7°F
Apr 12 57.3°F 55.5°F 56.0°F
Apr 13 57.3°F 56.5°F 56.0°F
Apr 14 58.0°F 57.8°F 56.2°F
Apr 15 55.2°F 58.2°F 55.9°F
Apr 16 56.3°F 58.0°F 56.1°F
Apr 17 56.9°F 58.4°F 56.6°F
Apr 18 56.9°F 58.3°F 56.7°F
Apr 19 57.2°F 60.4°F 57.0°F
Apr 20 57.4°F 61.0°F 57.2°F
Apr 21 57.8°F 60.7°F 57.6°F
Apr 22 58.1°F 60.4°F 57.8°F
Apr 23 58.5°F 60.1°F 58.3°F
Apr 24 58.6°F 59.9°F 58.3°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 Ōtsu by month

January

February

March

April

May

June

July

August

September

October

November

December

In Ōtsu, the months July through September offer comfortable swimming conditions, which amounts to 103 swimming days.
The warmest water in Ōtsu was recorded on August 7, 2024, reaching a 88.5°F. While the coldest temperature occurred on January 30, 2025, dipping to 43.9°F. The average readings by season are 53.7°F in Winter, 57.0°F in Spring, 76.6°F in Summer, and 70.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kyoto 56.9°F 7mi
Osaka 55.4°F 30mi
Amagasaki 55.7°F 32mi
Nishinomiya-hama 55.2°F 36mi
Sakai 55.2°F 37mi
Tsu 56.6°F 41mi
Maizuru 55.0°F 43mi
Kobe 54.8°F 44mi

* current water temperature in this city

** straight line distance from Ōtsu