What is the current water temperature in Okayama?

Q: What is the current water temperature in Okayama?

As of now, in Okayama, the water temperature is 16.54°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Japan > Okayama

Water temperature in Okayama

Detailed information about the current water temperature in Okayama. 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

April 30, 04:10

Trend:

increasing

Yesterday:

61.6°F

Tomorrow:

61.8°F

Sunrise:

05:16

Sunset:

18:48

Day Length:

13 h. 32 min.

Okayama in May

Minimum:

51.0°F

Average:

54.1°F

Maximum:

59.1°F

Sea water temperature in Okayama today

As of now, in Okayama, 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 2.4°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 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 maximum temperature for this date. The maximum temperature recorded for this date was 61.2°F on 2021, while the historical minimum was 57.7°F on 2020.

latest data

last year

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 63.0°F, with minimum temperature starting at 61.8°F, while the maximum might reach 64.3°F.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Apr 16	59.4°F	52.5°F	56.3°F
Apr 17	58.7°F	52.3°F	56.6°F
Apr 18	59.7°F	52.7°F	56.7°F
Apr 19	59.8°F	56.2°F	57.4°F
Apr 20	59.9°F	56.4°F	57.9°F
Apr 21	59.9°F	57.8°F	58.2°F
Apr 22	60.7°F	58.6°F	58.8°F
Apr 23	61.0°F	58.6°F	58.6°F
Apr 24	60.7°F	58.8°F	58.9°F
Apr 25	61.0°F	57.1°F	58.9°F
Apr 26	61.9°F	59.0°F	59.4°F
Apr 27	61.8°F	61.9°F	59.7°F
Apr 28	60.9°F	61.6°F	59.5°F
Apr 29	61.6°F	59.0°F	59.1°F
Apr 30	61.8°F	59.8°F	59.4°F
May 1	61.8°F	59.9°F	59.4°F
May 2	62.2°F	59.8°F	59.8°F
May 3	62.7°F	61.3°F	60.3°F
May 4	62.8°F	59.6°F	60.4°F
May 5	63.1°F	60.3°F	60.7°F
May 6	63.9°F	60.5°F	61.4°F
May 7	64.3°F	62.4°F	61.9°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 Okayama by month

In Okayama, the months July through October offer comfortable swimming conditions, which amounts to 118 swimming days.

The warmest water in Okayama was recorded on September 3, 2025, reaching a 87.6°F. While the coldest temperature occurred on March 10, 2022, dipping to 44.8°F. The average readings by season are 53.7°F in Winter, 57.3°F in Spring, 76.7°F in Summer, and 74.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kurashiki	62.8°F	11mi
Takamatsu	60.6°F	23mi
Marugame	61.8°F	27mi
Fukuyama	62.1°F	34mi
Himeji	62.0°F	45mi
Tokushima	63.5°F	54mi
Niihama	62.6°F	60mi
Yonago	62.0°F	64mi
Saijō	62.0°F	66mi

* current water temperature in this city

** straight line distance from Okayama