What is the current water temperature in Osaka?

Q: What is the current water temperature in Osaka?

As of now, in Osaka, the water temperature is 16.56°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

61.8

°F

May 9, 11:32

Trend:

decreasing

Yesterday:

62.0°F

Tomorrow:

61.6°F

Sunrise:

05:01

Sunset:

18:49

Day Length:

13 h. 48 min.

Osaka in May

Minimum:

51.4°F

Average:

55.6°F

Maximum:

60.4°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 61.8°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 1.1°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 fall 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 minimum temperature for this date. The maximum temperature recorded for this date was 66.4°F on 2023, while the historical minimum was 61.8°F on 2017.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 62.8°F, with minimum temperature starting at 61.6°F, while the maximum might reach 63.5°F.

Daily water temperature in Osaka

Date	Current Year actual* / forecast**	last year	10 years average
Apr 25	59.1°F	61.4°F	60.4°F
Apr 26	57.8°F	61.0°F	60.3°F
Apr 27	58.8°F	61.2°F	60.4°F
Apr 28	59.8°F	61.3°F	60.7°F
Apr 29	59.1°F	61.3°F	61.4°F
Apr 30	58.8°F	61.5°F	61.9°F
May 1	59.9°F	61.7°F	61.4°F
May 2	60.6°F	62.0°F	61.8°F
May 3	59.6°F	61.8°F	61.8°F
May 4	60.8°F	63.2°F	62.1°F
May 5	63.3°F	65.4°F	62.7°F
May 6	63.1°F	65.1°F	63.1°F
May 7	65.4°F	64.7°F	63.4°F
May 8	62.0°F	64.6°F	63.1°F
May 9	61.8°F	63.6°F	62.9°F
May 10	61.6°F	61.0°F	62.7°F
May 11	62.1°F	61.5°F	63.2°F
May 12	62.7°F	62.1°F	63.8°F
May 13	63.3°F	62.7°F	64.4°F
May 14	63.3°F	62.7°F	64.4°F
May 15	63.5°F	63.9°F	64.6°F
May 16	63.5°F	63.4°F	64.6°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 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, 58.8°F in Spring, 77.8°F in Summer, and 73.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Amagasaki	61.8°F	5mi
Sakai	61.7°F	8mi
Nishinomiya-hama	61.8°F	10mi
Kobe	62.0°F	18mi
Kyoto	62.3°F	27mi
Ōtsu	62.3°F	30mi
Himeji	60.3°F	46mi
Maizuru	60.4°F	53mi
Tokushima	59.8°F	69mi

* current water temperature in this city

** straight line distance from Osaka