All data are in degrees Fahrenheit

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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

86.0

°F

August 5, 19:07

Trend:

increasing

Yesterday:

85.5°F

Tomorrow:

86.2°F

Sunrise:

05:10

Sunset:

18:57

Day Length:

13 h. 47 min.

Osaka in August

Minimum:

52.9°F

Average:

55.7°F

Maximum:

59.8°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 86.0°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 2.2°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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 86.1°F on 2023, while the historical minimum was 81.7°F on 2016.

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 85.4°F, the minimum temperature may reach 84.7°F, and the maximum might stay at 86.2°F.

Daily water temperature in Osaka

Date Current Year

actual* / forecast**

last year 10 years average
Jul 22 84.8°F 86.8°F 81.6°F
Jul 23 84.9°F 86.5°F 81.5°F
Jul 24 85.7°F 85.3°F 81.6°F
Jul 25 85.0°F 84.2°F 82.0°F
Jul 26 85.9°F 86.3°F 82.1°F
Jul 27 85.6°F 83.5°F 81.9°F
Jul 28 84.6°F 85.4°F 82.2°F
Jul 29 84.8°F 85.9°F 82.6°F
Jul 30 86.2°F 86.9°F 83.1°F
Jul 31 85.0°F 85.9°F 83.0°F
Aug 1 85.4°F 84.2°F 82.9°F
Aug 2 86.0°F 85.6°F 83.7°F
Aug 3 85.8°F 85.6°F 83.6°F
Aug 4 85.5°F 85.7°F 83.7°F
Aug 5 86.0°F 85.3°F 83.9°F
Aug 6 86.2°F 86.8°F 84.0°F
Aug 7 86.0°F 85.6°F 83.9°F
Aug 8 85.8°F 84.3°F 83.6°F
Aug 9 85.4°F 83.9°F 83.2°F
Aug 10 84.9°F 83.5°F 82.7°F
Aug 11 84.8°F 83.4°F 82.6°F
Aug 12 84.7°F 83.3°F 82.5°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

In Osaka, the months July through October offer comfortable swimming conditions, which amounts to 114 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, 78.0°F in Summer, and 73.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Amagasaki 86.2°F 5mi
Sakai 85.6°F 8mi
Nishinomiya-hama 85.6°F 10mi
Kobe 84.1°F 18mi
Kyoto 87.0°F 27mi
Ōtsu 87.0°F 30mi
Himeji 83.1°F 46mi
Maizuru 85.2°F 53mi
Tokushima 82.4°F 69mi

* current water temperature in this city

** straight line distance from Osaka