All data are in degrees Fahrenheit

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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.
Sea temperature in Okayama now

51.3

°F

March 4, 13:47

Trend:

increasing

Yesterday:

51.1°F

Tomorrow:

51.8°F

Sunrise:

06:31

Sunset:

18:02

Day Length:

11 h. 31 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 51.3°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 1.0°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

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 59.1°F on 2016, while the historical minimum was 46.4°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 51.8°F, with minimum temperature starting at 51.4°F, while the maximum might reach 52.0°F.

Daily water temperature in Okayama

Date Current Year

actual* / forecast**

last year 10 years average
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 50.8°F 49.2°F 49.9°F
Feb 26 50.3°F 48.7°F 49.9°F
Feb 27 50.7°F 49.0°F 50.0°F
Feb 28 51.1°F 49.5°F 50.1°F
Mar 1 50.6°F 46.8°F 49.9°F
Mar 2 51.0°F 47.5°F 50.3°F
Mar 3 51.1°F 48.1°F 50.1°F
Mar 4 51.3°F 48.7°F 50.3°F
Mar 5 51.8°F 49.4°F 50.8°F
Mar 6 52.0°F 50.1°F 51.0°F
Mar 7 51.9°F 48.3°F 50.9°F
Mar 8 52.0°F 48.7°F 51.0°F
Mar 9 51.4°F 46.4°F 50.4°F
Mar 10 51.6°F 47.7°F 50.6°F
Mar 11 51.7°F 48.4°F 50.6°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 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 52.1°F 11mi
Takamatsu 51.5°F 23mi
Marugame 52.1°F 27mi
Fukuyama 51.6°F 34mi
Himeji 51.5°F 45mi
Tokushima 52.8°F 54mi
Niihama 52.9°F 60mi
Yonago 55.1°F 64mi
Saijō 53.5°F 66mi

* current water temperature in this city

** straight line distance from Okayama