What is the current water temperature in Osaka?

As of now, in Osaka, the water temperature is 24.47°C. It's safe to say that the water is comfortably warm for various water-related activities.

Japan > Osaka

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.

76.0

°F

July 9, 06:20

Trend:

stable

Yesterday:

76.3°F

Tomorrow:

76.1°F

Sunrise:

04:52

Sunset:

19:14

Day Length:

14 h. 22 min.

Osaka in July

Minimum:

53.1°F

Average:

55.8°F

Maximum:

60.2°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 76.0°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.4°F lower 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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 84.2°F on 2024, while the historical minimum was 75.7°F on 2020.

latest data

last year

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 76.9°F, with minimum temperature starting at 76.1°F, while the maximum might reach 77.9°F.

Daily water temperature in Osaka

Date	Current Year actual* / forecast**	last year	10 years average
Jun 25	73.8°F	77.1°F	73.6°F
Jun 26	74.9°F	80.7°F	74.4°F
Jun 27	73.9°F	80.9°F	74.9°F
Jun 28	75.1°F	78.9°F	74.8°F
Jun 29	73.7°F	79.5°F	74.9°F
Jun 30	74.4°F	81.0°F	75.7°F
Jul 1	74.2°F	82.9°F	76.2°F
Jul 2	74.1°F	79.5°F	76.2°F
Jul 3	74.4°F	81.9°F	76.7°F
Jul 4	75.3°F	82.7°F	77.2°F
Jul 5	76.7°F	85.1°F	78.1°F
Jul 6	76.8°F	84.5°F	78.3°F
Jul 7	76.7°F	82.2°F	78.3°F
Jul 8	76.3°F	85.3°F	78.7°F
Jul 9	76.0°F	83.2°F	78.5°F
Jul 10	76.1°F	83.3°F	78.5°F
Jul 11	76.4°F	83.3°F	78.9°F
Jul 12	76.7°F	83.0°F	79.1°F
Jul 13	76.6°F	83.6°F	79.0°F
Jul 14	76.9°F	83.4°F	79.3°F
Jul 15	77.6°F	85.6°F	80.1°F
Jul 16	77.9°F	84.5°F	80.3°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 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 September 1, 2025, reaching a 87.0°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	76.1°F	5mi
Sakai	76.0°F	8mi
Nishinomiya-hama	76.1°F	10mi
Kobe	75.8°F	18mi
Kyoto	73.2°F	27mi
Ōtsu	73.2°F	30mi
Himeji	74.2°F	46mi
Maizuru	76.1°F	53mi
Tokushima	74.7°F	69mi

* current water temperature in this city

** straight line distance from Osaka