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 18.83°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.

65.9

°F

November 20, 10:38

Trend:

decreasing

Yesterday:

66.1°F

Tomorrow:

65.6°F

Sunrise:

06:36

Sunset:

16:51

Day Length:

10 h. 15 min.

Osaka in November

Minimum:

49.6°F

Average:

54.8°F

Maximum:

59.6°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 65.9°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 0.5°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 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 68.1°F on 2024, while the historical minimum was 65.0°F on 2023.

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 shows a gradual cooling trend. The average temperature is expected to be 64.7°F, the minimum temperature may reach 64.0°F, and the maximum might stay at 65.6°F.

Daily water temperature in Osaka

Date	Current Year actual* / forecast**	last year	10 years average
Nov 6	68.0°F	71.3°F	69.3°F
Nov 7	67.1°F	71.1°F	69.0°F
Nov 8	67.2°F	71.1°F	68.8°F
Nov 9	67.4°F	70.8°F	68.5°F
Nov 10	67.4°F	70.4°F	68.1°F
Nov 11	68.2°F	70.3°F	68.0°F
Nov 12	68.2°F	70.1°F	67.8°F
Nov 13	68.0°F	69.9°F	67.5°F
Nov 14	68.0°F	69.7°F	67.4°F
Nov 15	65.8°F	68.7°F	67.3°F
Nov 16	66.2°F	68.5°F	66.9°F
Nov 17	66.3°F	68.6°F	66.8°F
Nov 18	66.1°F	68.8°F	66.6°F
Nov 19	66.1°F	68.5°F	66.6°F
Nov 20	65.9°F	68.1°F	66.4°F
Nov 21	65.6°F	68.1°F	66.2°F
Nov 22	65.1°F	67.4°F	65.7°F
Nov 23	64.9°F	67.2°F	65.4°F
Nov 24	64.8°F	66.6°F	65.3°F
Nov 25	64.5°F	65.6°F	65.0°F
Nov 26	64.3°F	65.7°F	64.8°F
Nov 27	64.0°F	65.6°F	64.5°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 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 55.3°F in Winter, 58.9°F in Spring, 78.1°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Amagasaki	65.8°F	5mi
Sakai	66.1°F	8mi
Nishinomiya-hama	65.9°F	10mi
Kobe	66.6°F	18mi
Kyoto	61.3°F	27mi
Ōtsu	61.3°F	30mi
Himeji	66.7°F	46mi
Maizuru	66.4°F	53mi
Tokushima	67.5°F	69mi

* current water temperature in this city

** straight line distance from Osaka