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 10.11°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

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.

50.2

°F

February 27, 19:01

Trend:

increasing

Yesterday:

48.9°F

Tomorrow:

50.4°F

Sunrise:

06:31

Sunset:

17:51

Day Length:

11 h. 20 min.

Osaka in March

Minimum:

52.1°F

Average:

55.6°F

Maximum:

60.2°F

Sea water temperature in Osaka today

As of now, in Osaka, the water temperature is 50.2°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.8°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 59.0°F on 2016, while the historical minimum was 46.8°F on 2022.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 48.4°F, the minimum temperature may reach 47.5°F, and the maximum might stay at 50.4°F.

Daily water temperature in Osaka

Date	Current Year actual* / forecast**	last year	10 years average
Feb 13	45.7°F	46.2°F	50.1°F
Feb 14	44.5°F	44.3°F	49.5°F
Feb 15	45.9°F	42.4°F	49.5°F
Feb 16	45.8°F	44.0°F	49.9°F
Feb 17	46.9°F	46.7°F	50.5°F
Feb 18	46.9°F	47.0°F	50.6°F
Feb 19	47.0°F	46.3°F	50.6°F
Feb 20	47.6°F	46.9°F	50.7°F
Feb 21	46.9°F	47.9°F	50.6°F
Feb 22	47.2°F	47.9°F	50.7°F
Feb 23	49.6°F	46.6°F	50.8°F
Feb 24	49.2°F	47.2°F	50.6°F
Feb 25	50.1°F	48.0°F	50.6°F
Feb 26	48.9°F	48.0°F	50.7°F
Feb 27	50.2°F	48.1°F	51.0°F
Feb 28	50.4°F	48.8°F	51.2°F
Mar 1	47.5°F	48.3°F	50.9°F
Mar 2	47.9°F	48.1°F	51.3°F
Mar 3	47.8°F	48.7°F	51.2°F
Mar 4	48.2°F	49.3°F	51.5°F
Mar 5	48.6°F	50.0°F	51.9°F
Mar 6	48.7°F	50.7°F	52.0°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, 58.6°F in Spring, 78.3°F in Summer, and 73.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Amagasaki	50.3°F	5mi
Sakai	50.0°F	8mi
Nishinomiya-hama	50.4°F	10mi
Kobe	49.6°F	18mi
Kyoto	48.5°F	27mi
Ōtsu	48.5°F	30mi
Himeji	48.8°F	46mi
Maizuru	51.9°F	53mi
Tokushima	52.5°F	69mi

* current water temperature in this city

** straight line distance from Osaka