What is the current water temperature in Saijō?

Q: What is the current water temperature in Saijō?

As of now, in Saijō, the water temperature is 16.28°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Japan > Saijō

Water temperature in Saijō

Detailed information about the current water temperature in Saijō. 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.

61.3

°F

April 16, 13:34

Trend:

stable

Yesterday:

61.3°F

Tomorrow:

61.6°F

Sunrise:

05:36

Sunset:

18:39

Day Length:

13 h. 3 min.

Saijō in April

Minimum:

56.4°F

Average:

58.3°F

Maximum:

59.6°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 61.3°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 3.7°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 61.0°F on 2022, while the historical minimum was 53.6°F on 2025.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 62.4°F, with minimum temperature starting at 61.6°F, while the maximum might reach 63.5°F.

Daily water temperature in Saijō

Date	Current Year actual* / forecast**	last year	10 years average
Apr 2	56.0°F	56.6°F	55.9°F
Apr 3	56.8°F	56.8°F	55.9°F
Apr 4	57.1°F	57.0°F	56.2°F
Apr 5	57.5°F	56.0°F	56.4°F
Apr 6	57.8°F	56.6°F	56.7°F
Apr 7	59.0°F	56.8°F	56.9°F
Apr 8	56.9°F	55.9°F	56.9°F
Apr 9	57.1°F	56.1°F	57.1°F
Apr 10	57.7°F	56.7°F	57.2°F
Apr 11	59.6°F	56.2°F	57.1°F
Apr 12	59.9°F	57.5°F	57.5°F
Apr 13	60.0°F	57.6°F	57.8°F
Apr 14	61.2°F	55.7°F	58.1°F
Apr 15	61.3°F	55.3°F	57.6°F
Apr 16	61.3°F	53.6°F	57.6°F
Apr 17	61.6°F	53.4°F	57.8°F
Apr 18	61.6°F	54.0°F	57.8°F
Apr 19	62.2°F	56.6°F	58.4°F
Apr 20	62.3°F	56.9°F	58.6°F
Apr 21	62.8°F	58.9°F	59.0°F
Apr 22	63.3°F	60.7°F	59.5°F
Apr 23	63.5°F	60.7°F	59.8°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 Saijō by month

In Saijō, the months July through October offer comfortable swimming conditions, which amounts to 123 swimming days.

The warmest water in Saijō was recorded on August 1, 2024, reaching a 87.8°F. While the coldest temperature occurred on March 9, 2025, dipping to 49.4°F. The average readings by season are 57.0°F in Winter, 58.7°F in Spring, 78.2°F in Summer, and 74.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Niihama	61.3°F	8mi
Matsuyama	61.3°F	25mi
Fukuyama	59.3°F	41mi
Marugame	59.5°F	43mi
Hiroshima	60.7°F	54mi
Kurashiki	59.0°F	57mi
Takamatsu	58.5°F	57mi
Iwakuni	60.2°F	58mi
Okayama	58.3°F	66mi

* current water temperature in this city

** straight line distance from Saijō