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 18.1°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.

64.6

°F

November 26, 04:06

Trend:

decreasing

Yesterday:

64.8°F

Tomorrow:

64.2°F

Sunrise:

06:48

Sunset:

16:55

Day Length:

10 h. 7 min.

Okayama in December

Minimum:

50.4°F

Average:

53.6°F

Maximum:

59.0°F

Sea water temperature in Okayama today

As of now, in Okayama, the water temperature is 64.6°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 about the same as 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 66.1°F on 2024, while the historical minimum was 63.3°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 shows a gradual cooling trend. The average temperature is expected to be 63.3°F, the minimum temperature may reach 62.5°F, and the maximum might stay at 64.2°F.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Nov 12	68.5°F	70.1°F	68.1°F
Nov 13	68.3°F	69.7°F	67.8°F
Nov 14	68.0°F	69.5°F	67.6°F
Nov 15	67.6°F	69.5°F	67.5°F
Nov 16	67.4°F	69.2°F	67.1°F
Nov 17	67.2°F	69.0°F	66.9°F
Nov 18	66.9°F	68.8°F	66.6°F
Nov 19	66.1°F	69.0°F	66.4°F
Nov 20	65.7°F	68.7°F	66.2°F
Nov 21	65.4°F	68.0°F	65.8°F
Nov 22	65.3°F	67.7°F	65.6°F
Nov 23	64.9°F	67.2°F	65.3°F
Nov 24	64.9°F	67.0°F	65.1°F
Nov 25	64.8°F	66.4°F	64.8°F
Nov 26	64.6°F	66.1°F	64.6°F
Nov 27	64.2°F	65.8°F	64.2°F
Nov 28	64.0°F	65.0°F	64.0°F
Nov 29	63.6°F	65.4°F	63.6°F
Nov 30	63.2°F	64.0°F	63.2°F
Dec 1	63.1°F	63.9°F	63.1°F
Dec 2	62.8°F	63.4°F	62.8°F
Dec 3	62.5°F	62.6°F	62.5°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 Okayama by month

In Okayama, the months July through October offer comfortable swimming conditions, which amounts to 117 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	63.9°F	11mi
Takamatsu	64.9°F	23mi
Marugame	65.0°F	27mi
Fukuyama	63.9°F	34mi
Himeji	65.8°F	45mi
Tokushima	65.6°F	54mi
Niihama	65.3°F	60mi
Yonago	66.2°F	64mi
Saijō	66.1°F	66mi

* current water temperature in this city

** straight line distance from Okayama