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

80.2

°F

June 30, 03:27

Trend:

increasing

Yesterday:

79.5°F

Tomorrow:

80.7°F

Sunrise:

04:48

Sunset:

19:15

Day Length:

14 h. 27 min.

Osaka in July

Minimum:

53.1°F

Average:

55.9°F

Maximum:

60.2°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 80.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 5.3°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

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 80.8°F on 2022, while the historical minimum was 72.1°F on 2015.

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 suggests a gradual increase. The average temperature is expected to rise up to 81.8°F, with minimum temperature starting at 80.7°F, while the maximum might reach 82.9°F.

Daily water temperature in Osaka

Date Current Year

actual* / forecast**

last year 10 years average
Jun 16 70.0°F 74.5°F 71.5°F
Jun 17 71.7°F 74.6°F 72.0°F
Jun 18 73.5°F 74.5°F 72.1°F
Jun 19 76.9°F 72.5°F 72.4°F
Jun 20 79.2°F 72.5°F 72.9°F
Jun 21 77.6°F 72.6°F 72.8°F
Jun 22 78.2°F 72.1°F 72.8°F
Jun 23 77.7°F 72.2°F 73.0°F
Jun 24 77.4°F 72.3°F 73.1°F
Jun 25 77.1°F 73.9°F 73.5°F
Jun 26 80.7°F 74.1°F 74.2°F
Jun 27 80.9°F 75.3°F 74.8°F
Jun 28 78.9°F 75.0°F 74.6°F
Jun 29 79.5°F 75.0°F 74.2°F
Jun 30 80.2°F 75.0°F 74.9°F
Jul 1 80.7°F 75.0°F 75.3°F
Jul 2 80.9°F 75.2°F 75.6°F
Jul 3 81.3°F 76.0°F 76.0°F
Jul 4 81.8°F 77.4°F 76.5°F
Jul 5 82.4°F 80.2°F 77.1°F
Jul 6 82.6°F 80.4°F 77.3°F
Jul 7 82.9°F 81.2°F 77.6°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, 77.9°F in Summer, and 73.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Amagasaki 80.1°F 5mi
Sakai 80.5°F 8mi
Nishinomiya-hama 80.2°F 10mi
Kobe 78.7°F 18mi
Kyoto 79.2°F 27mi
Ōtsu 79.2°F 30mi
Himeji 78.0°F 46mi
Maizuru 75.4°F 53mi
Tokushima 75.7°F 69mi

* current water temperature in this city

** straight line distance from Osaka