What is the current water temperature in Okayama?

As of now, in Okayama, the water temperature is 26.07°C. It's safe to say that the water is comfortably warm for various water-related activities.

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.

78.9

°F

October 11, 05:34

Trend:

decreasing

Yesterday:

79.2°F

Tomorrow:

78.7°F

Sunrise:

06:06

Sunset:

17:36

Day Length:

11 h. 30 min.

Okayama in October

Minimum:

49.6°F

Average:

53.6°F

Maximum:

58.4°F

Sea water temperature in Okayama today

As of now, in Okayama, the water temperature is 78.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.7°F higher 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 78.1°F on 2024, while the historical minimum was 73.3°F on 2015.

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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 78.1°F, the minimum temperature may reach 77.6°F, and the maximum might stay at 78.7°F.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Sep 27	80.3°F	81.9°F	79.0°F
Sep 28	81.0°F	81.9°F	79.0°F
Sep 29	81.1°F	81.4°F	79.0°F
Sep 30	80.9°F	81.2°F	78.8°F
Oct 1	80.2°F	81.7°F	78.7°F
Oct 2	80.1°F	81.5°F	78.5°F
Oct 3	80.0°F	81.2°F	78.4°F
Oct 4	79.7°F	80.9°F	78.3°F
Oct 5	79.8°F	80.5°F	78.1°F
Oct 6	80.1°F	80.3°F	77.9°F
Oct 7	79.7°F	79.6°F	77.6°F
Oct 8	79.2°F	79.1°F	77.1°F
Oct 9	79.7°F	78.8°F	77.0°F
Oct 10	79.2°F	78.5°F	76.4°F
Oct 11	78.9°F	78.1°F	76.2°F
Oct 12	78.7°F	78.6°F	76.0°F
Oct 13	78.4°F	78.0°F	75.7°F
Oct 14	78.2°F	78.3°F	75.5°F
Oct 15	78.0°F	78.1°F	75.3°F
Oct 16	77.9°F	77.8°F	75.2°F
Oct 17	77.7°F	78.0°F	75.0°F
Oct 18	77.6°F	78.1°F	74.9°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 116 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 54.1°F in Winter, 57.6°F in Spring, 76.5°F in Summer, and 74.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kurashiki	80.3°F	11mi
Takamatsu	79.2°F	23mi
Marugame	79.1°F	27mi
Fukuyama	78.8°F	34mi
Himeji	78.3°F	45mi
Tokushima	77.0°F	54mi
Niihama	78.5°F	60mi
Yonago	76.5°F	64mi
Saijō	78.1°F	66mi

* current water temperature in this city

** straight line distance from Okayama