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 19.31°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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.

66.8

°F

November 19, 03:39

Trend:

decreasing

Yesterday:

66.9°F

Tomorrow:

66.6°F

Sunrise:

06:41

Sunset:

16:58

Day Length:

10 h. 17 min.

Okayama in November

Minimum:

49.9°F

Average:

53.8°F

Maximum:

59.1°F

Sea water temperature in Okayama today

As of now, in Okayama, the water temperature is 66.8°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.4°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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 69.0°F on 2024, while the historical minimum was 65.3°F on 2021.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 65.7°F, the minimum temperature may reach 64.9°F, and the maximum might stay at 66.6°F.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Nov 5	70.4°F	71.5°F	69.8°F
Nov 6	70.1°F	71.9°F	69.8°F
Nov 7	70.3°F	71.5°F	69.5°F
Nov 8	70.1°F	71.3°F	69.4°F
Nov 9	69.8°F	71.0°F	69.0°F
Nov 10	68.9°F	70.6°F	68.7°F
Nov 11	68.8°F	70.4°F	68.4°F
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	66.8°F	69.0°F	66.4°F
Nov 20	66.6°F	68.7°F	66.3°F
Nov 21	66.2°F	68.0°F	65.9°F
Nov 22	66.0°F	67.7°F	65.6°F
Nov 23	65.7°F	67.2°F	65.4°F
Nov 24	65.5°F	67.0°F	65.2°F
Nov 25	65.2°F	66.4°F	64.8°F
Nov 26	64.9°F	66.1°F	64.6°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	66.6°F	11mi
Takamatsu	67.2°F	23mi
Marugame	66.7°F	27mi
Fukuyama	66.8°F	34mi
Himeji	66.9°F	45mi
Tokushima	67.8°F	54mi
Niihama	67.3°F	60mi
Yonago	66.6°F	64mi
Saijō	67.5°F	66mi

* current water temperature in this city

** straight line distance from Okayama