What is the current water temperature in Saijō?

As of now, in Saijō, the water temperature is 25.6°C. It's safe to say that the water is comfortably warm for various water-related activities.

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.

78.1

°F

October 11, 05:29

Trend:

decreasing

Yesterday:

78.4°F

Tomorrow:

77.8°F

Sunrise:

06:09

Sunset:

17:39

Day Length:

11 h. 30 min.

Saijō in October

Minimum:

55.0°F

Average:

56.4°F

Maximum:

57.9°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 78.1°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.0°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 fall a bit.

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 maximum temperature for this date. The maximum temperature recorded for this date was 77.8°F on 2021, while the historical minimum was 73.1°F on 2015.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 77.3°F, the minimum temperature may reach 76.7°F, and the maximum might stay at 77.8°F.

Daily water temperature in Saijō

Date	Current Year actual* / forecast**	last year	10 years average
Sep 27	80.2°F	82.4°F	78.6°F
Sep 28	80.5°F	81.8°F	78.6°F
Sep 29	80.3°F	81.4°F	78.6°F
Sep 30	79.8°F	81.2°F	78.4°F
Oct 1	79.8°F	81.0°F	78.2°F
Oct 2	79.2°F	81.4°F	78.2°F
Oct 3	78.9°F	81.0°F	78.1°F
Oct 4	78.5°F	80.5°F	78.0°F
Oct 5	78.2°F	80.0°F	77.8°F
Oct 6	78.9°F	79.8°F	77.5°F
Oct 7	79.9°F	78.7°F	77.4°F
Oct 8	79.2°F	78.3°F	77.0°F
Oct 9	78.7°F	78.4°F	76.7°F
Oct 10	78.4°F	77.9°F	76.4°F
Oct 11	78.1°F	77.5°F	76.1°F
Oct 12	77.8°F	77.4°F	75.8°F
Oct 13	77.7°F	78.3°F	75.7°F
Oct 14	77.4°F	77.8°F	75.4°F
Oct 15	77.3°F	78.1°F	75.3°F
Oct 16	77.2°F	77.7°F	75.2°F
Oct 17	77.0°F	77.9°F	75.0°F
Oct 18	76.7°F	77.7°F	74.7°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 121 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 57.1°F in Winter, 58.8°F in Spring, 77.9°F in Summer, and 74.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Niihama	78.5°F	8mi
Matsuyama	76.0°F	25mi
Fukuyama	78.8°F	41mi
Marugame	79.1°F	43mi
Hiroshima	77.6°F	54mi
Kurashiki	80.3°F	57mi
Takamatsu	79.2°F	57mi
Iwakuni	77.5°F	58mi
Okayama	78.9°F	66mi

* current water temperature in this city

** straight line distance from Saijō