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 17.31°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.

63.2

°F

May 10, 04:55

Trend:

stable

Yesterday:

63.8°F

Tomorrow:

63.8°F

Sunrise:

05:06

Sunset:

18:56

Day Length:

13 h. 50 min.

Okayama in May

Minimum:

51.0°F

Average:

54.1°F

Maximum:

59.1°F

Sea water temperature in Okayama today

As of now, in Okayama, the water temperature is 63.2°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 1.8°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 62.0°F on 2017, while the historical minimum was 60.6°F on 2021.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 64.3°F, with minimum temperature starting at 63.7°F, while the maximum might reach 65.0°F.

Daily water temperature in Okayama

Date	Current Year actual* / forecast**	last year	10 years average
Apr 26	61.9°F	59.0°F	59.4°F
Apr 27	61.8°F	61.9°F	59.7°F
Apr 28	60.9°F	61.6°F	59.5°F
Apr 29	61.6°F	59.0°F	59.4°F
Apr 30	61.7°F	59.8°F	59.6°F
May 1	62.1°F	59.9°F	59.6°F
May 2	61.9°F	59.8°F	60.0°F
May 3	62.4°F	61.3°F	60.5°F
May 4	61.4°F	59.6°F	60.5°F
May 5	61.5°F	60.3°F	60.8°F
May 6	64.1°F	60.5°F	61.7°F
May 7	62.5°F	62.4°F	62.0°F
May 8	63.3°F	62.6°F	62.2°F
May 9	63.8°F	62.4°F	62.0°F
May 10	63.2°F	61.7°F	61.4°F
May 11	63.8°F	62.3°F	62.0°F
May 12	63.7°F	62.2°F	61.9°F
May 13	63.8°F	61.8°F	62.0°F
May 14	64.1°F	62.7°F	62.3°F
May 15	65.0°F	63.7°F	63.2°F
May 16	64.9°F	62.7°F	63.1°F
May 17	64.9°F	62.4°F	63.1°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	64.0°F	11mi
Takamatsu	60.7°F	23mi
Marugame	62.0°F	27mi
Fukuyama	64.3°F	34mi
Himeji	61.6°F	45mi
Tokushima	62.2°F	54mi
Niihama	62.8°F	60mi
Yonago	62.0°F	64mi
Saijō	62.0°F	66mi

* current water temperature in this city

** straight line distance from Okayama