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 8.54°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.

47.4

°F

February 11, 09:07

Trend:

decreasing

Yesterday:

47.7°F

Tomorrow:

47.3°F

Sunrise:

06:55

Sunset:

17:43

Day Length:

10 h. 48 min.

Okayama in February

Minimum:

52.0°F

Average:

54.4°F

Maximum:

58.5°F

Sea water temperature in Okayama today

As of now, in Okayama, the water temperature is 47.4°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 2.1°F lower 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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.1°F on 2016, while the historical minimum was 46.0°F on 2021.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 47.2°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Jan 28	49.8°F	49.3°F	50.9°F
Jan 29	49.3°F	49.3°F	50.7°F
Jan 30	48.4°F	49.3°F	50.5°F
Jan 31	48.9°F	49.0°F	50.5°F
Feb 1	48.6°F	49.5°F	50.5°F
Feb 2	48.3°F	50.1°F	50.5°F
Feb 3	48.3°F	50.7°F	50.5°F
Feb 4	48.1°F	48.1°F	50.2°F
Feb 5	48.4°F	48.1°F	50.2°F
Feb 6	47.4°F	47.6°F	49.7°F
Feb 7	48.2°F	47.7°F	49.8°F
Feb 8	48.5°F	48.2°F	49.8°F
Feb 9	48.0°F	48.8°F	49.5°F
Feb 10	47.7°F	47.6°F	49.7°F
Feb 11	47.4°F	48.0°F	49.4°F
Feb 12	47.3°F	47.5°F	49.4°F
Feb 13	47.5°F	47.9°F	49.6°F
Feb 14	47.2°F	47.3°F	49.3°F
Feb 15	47.0°F	46.9°F	49.0°F
Feb 16	47.2°F	47.5°F	49.2°F
Feb 17	47.2°F	47.8°F	49.3°F
Feb 18	47.3°F	48.1°F	49.4°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	49.6°F	11mi
Takamatsu	49.1°F	23mi
Marugame	49.0°F	27mi
Fukuyama	51.5°F	34mi
Himeji	48.6°F	45mi
Tokushima	50.0°F	54mi
Niihama	51.2°F	60mi
Yonago	55.2°F	64mi
Saijō	52.8°F	66mi

* current water temperature in this city

** straight line distance from Okayama