All data are in degrees Fahrenheit

en

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

85.0

°F

August 6, 10:30

Trend:

stable

Yesterday:

84.8°F

Tomorrow:

84.8°F

Sunrise:

05:11

Sunset:

18:56

Day Length:

13 h. 45 min.

Osaka in August

Minimum:

52.9°F

Average:

55.4°F

Maximum:

59.8°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 85.0°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 0.7°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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 86.8°F on 2024, while the historical minimum was 82.0°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 83.8°F, the minimum temperature may reach 83.3°F, and the maximum might stay at 84.8°F.

Daily water temperature in Osaka

Date Current Year

actual* / forecast**

last year 10 years average
Jul 23 86.9°F 84.9°F 82.3°F
Jul 24 87.2°F 85.7°F 82.3°F
Jul 25 86.2°F 85.0°F 82.7°F
Jul 26 85.3°F 85.9°F 82.7°F
Jul 27 85.4°F 85.6°F 82.4°F
Jul 28 85.4°F 84.6°F 82.7°F
Jul 29 85.7°F 84.8°F 83.1°F
Jul 30 84.6°F 86.2°F 83.5°F
Jul 31 84.7°F 85.0°F 83.3°F
Aug 1 86.6°F 85.4°F 83.3°F
Aug 2 86.0°F 86.0°F 83.9°F
Aug 3 86.9°F 85.8°F 83.9°F
Aug 4 86.6°F 85.5°F 84.0°F
Aug 5 84.8°F 86.0°F 84.1°F
Aug 6 85.0°F 85.7°F 84.3°F
Aug 7 84.8°F 86.8°F 84.1°F
Aug 8 84.5°F 85.4°F 83.8°F
Aug 9 83.9°F 84.8°F 83.2°F
Aug 10 83.3°F 84.2°F 82.6°F
Aug 11 83.3°F 84.2°F 82.6°F
Aug 12 83.4°F 83.4°F 82.7°F
Aug 13 83.6°F 83.1°F 82.9°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 116 swimming days.
The warmest water in Osaka was recorded on July 24, 2026, reaching a 87.2°F. While the coldest temperature occurred on February 15, 2025, dipping to 42.4°F. The average readings by season are 54.7°F in Winter, 58.7°F in Spring, 78.3°F in Summer, and 73.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Amagasaki 84.6°F 5mi
Sakai 85.3°F 8mi
Nishinomiya-hama 84.4°F 10mi
Kobe 83.9°F 18mi
Kyoto 87.2°F 27mi
Ōtsu 87.2°F 30mi
Himeji 84.5°F 46mi
Maizuru 86.2°F 53mi
Tokushima 83.0°F 69mi

* current water temperature in this city

** straight line distance from Osaka