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 10.16°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 > 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.

50.3

°F

February 25, 10:36

Trend:

increasing

Yesterday:

50.2°F

Tomorrow:

50.3°F

Sunrise:

06:40

Sunset:

17:56

Day Length:

11 h. 16 min.

Okayama in March

Minimum:

51.5°F

Average:

54.1°F

Maximum:

58.9°F

Sea water temperature in Okayama today

As of now, in Okayama, the water temperature is 50.3°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 0.5°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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 58.6°F on 2016, while the historical minimum was 45.9°F on 2022.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 48.8°F, the minimum temperature may reach 47.3°F, and the maximum might stay at 50.5°F.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Feb 11	48.5°F	48.0°F	49.4°F
Feb 12	48.4°F	47.5°F	49.3°F
Feb 13	47.8°F	47.9°F	49.4°F
Feb 14	47.6°F	47.3°F	49.1°F
Feb 15	48.5°F	46.9°F	49.0°F
Feb 16	47.3°F	47.5°F	49.1°F
Feb 17	48.2°F	47.8°F	49.2°F
Feb 18	49.2°F	48.1°F	49.4°F
Feb 19	48.4°F	47.4°F	49.4°F
Feb 20	49.1°F	47.7°F	49.6°F
Feb 21	48.8°F	48.3°F	49.5°F
Feb 22	48.7°F	48.2°F	49.5°F
Feb 23	49.7°F	48.2°F	49.8°F
Feb 24	50.2°F	48.7°F	49.7°F
Feb 25	50.3°F	49.2°F	49.8°F
Feb 26	50.3°F	48.7°F	49.8°F
Feb 27	50.4°F	49.0°F	49.9°F
Feb 28	50.5°F	49.5°F	50.0°F
Mar 1	47.3°F	46.8°F	49.8°F
Mar 2	47.7°F	47.5°F	50.2°F
Mar 3	47.6°F	48.1°F	50.1°F
Mar 4	47.8°F	48.7°F	50.3°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	51.0°F	11mi
Takamatsu	48.6°F	23mi
Marugame	51.5°F	27mi
Fukuyama	52.6°F	34mi
Himeji	49.5°F	45mi
Tokushima	49.4°F	54mi
Niihama	51.8°F	60mi
Yonago	55.0°F	64mi
Saijō	53.2°F	66mi

* current water temperature in this city

** straight line distance from Okayama