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Water temperature in Osaka

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

55.4

°F

April 17, 11:53

Trend:

stable

Yesterday:

54.9°F

Tomorrow:

55.4°F

Sunrise:

05:25

Sunset:

18:31

Day Length:

13 h. 6 min.

Osaka in April

Minimum:

50.6°F

Average:

55.8°F

Maximum:

60.2°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 55.4°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 3.4°F lower 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 slightly 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 62.2°F on 2024, while the historical minimum was 55.7°F on 2020.

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 minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 56.0°F, with minimum temperature starting at 55.4°F, while the maximum might reach 56.6°F.

Daily water temperature in Osaka

Date Current Year

actual* / forecast**

 last year 10 years average
Apr 3 56.2°F 56.4°F 56.3°F
Apr 4 57.2°F 56.5°F 56.2°F
Apr 5 54.4°F 56.0°F 56.3°F
Apr 6 53.8°F 55.2°F 56.0°F
Apr 7 54.8°F 55.6°F 56.4°F
Apr 8 55.3°F 57.1°F 57.0°F
Apr 9 55.7°F 57.4°F 57.3°F
Apr 10 56.0°F 55.2°F 57.3°F
Apr 11 56.6°F 54.4°F 57.1°F
Apr 12 56.3°F 56.2°F 57.2°F
Apr 13 56.5°F 57.0°F 57.1°F
Apr 14 58.9°F 59.7°F 58.1°F
Apr 15 56.0°F 56.9°F 57.5°F
Apr 16 54.9°F 60.8°F 58.2°F
Apr 17 55.4°F 62.2°F 58.8°F
Apr 18 55.4°F 62.1°F 58.8°F
Apr 19 55.7°F 59.1°F 59.0°F
Apr 20 55.6°F 60.1°F 58.9°F
Apr 21 56.0°F 60.2°F 59.3°F
Apr 22 56.1°F 60.4°F 59.5°F
Apr 23 56.4°F 60.5°F 59.8°F
Apr 24 56.6°F 60.6°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 Osaka by month

January

February

March

April

May

June

July

August

September

October

November

December

In Osaka, the months July through October offer comfortable swimming conditions, which amounts to 113 swimming days.
The warmest water in Osaka was recorded on August 17, 2020, reaching a 86.9°F. While the coldest temperature occurred on February 15, 2025, dipping to 42.4°F. The average readings by season are 55.3°F in Winter, 58.9°F in Spring, 77.8°F in Summer, and 73.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Amagasaki 55.7°F 5mi
Sakai 55.2°F 8mi
Nishinomiya-hama 55.2°F 10mi
Kobe 54.8°F 18mi
Kyoto 56.9°F 27mi
Ōtsu 56.9°F 30mi
Himeji 52.6°F 46mi
Maizuru 55.0°F 53mi
Tokushima 55.1°F 69mi

* current water temperature in this city

** straight line distance from Osaka