All data are in degrees Fahrenheit

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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.
Sea temperature in Saijō now

85.6

°F

August 9, 15:17

Trend:

decreasing

Yesterday:

85.6°F

Tomorrow:

84.8°F

Sunrise:

05:24

Sunset:

19:01

Day Length:

13 h. 37 min.

Saijō in August

Minimum:

55.6°F

Average:

57.1°F

Maximum:

58.2°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 85.6°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. 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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly 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 86.4°F on 2024, while the historical minimum was 81.8°F on 2017.

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 shows a gradual cooling trend. The average temperature is expected to be 85.2°F, the minimum temperature may reach 84.6°F, and the maximum might stay at 85.8°F.

Daily water temperature in Saijō

Date Current Year

actual* / forecast**

last year 10 years average
Jul 26 86.7°F 84.3°F 82.3°F
Jul 27 86.7°F 84.0°F 82.6°F
Jul 28 87.6°F 83.3°F 83.1°F
Jul 29 86.7°F 82.9°F 83.5°F
Jul 30 85.4°F 84.3°F 83.3°F
Jul 31 85.1°F 84.0°F 83.3°F
Aug 1 83.9°F 83.6°F 83.5°F
Aug 2 85.5°F 85.0°F 83.7°F
Aug 3 85.3°F 86.7°F 84.1°F
Aug 4 86.5°F 83.1°F 84.1°F
Aug 5 88.0°F 83.9°F 84.3°F
Aug 6 86.2°F 86.7°F 84.3°F
Aug 7 86.4°F 87.2°F 84.3°F
Aug 8 85.6°F 85.6°F 83.9°F
Aug 9 85.6°F 85.6°F 83.8°F
Aug 10 84.8°F 84.7°F 83.0°F
Aug 11 84.6°F 84.6°F 82.8°F
Aug 12 84.7°F 83.6°F 82.9°F
Aug 13 85.2°F 83.4°F 83.4°F
Aug 14 85.5°F 84.4°F 83.7°F
Aug 15 85.8°F 84.8°F 84.0°F
Aug 16 85.7°F 85.9°F 84.0°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 5, 2026, reaching a 88.0°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, 58.8°F in Spring, 78.2°F in Summer, and 74.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Niihama 85.9°F 8mi
Matsuyama 77.9°F 25mi
Fukuyama 84.2°F 41mi
Marugame 83.2°F 43mi
Hiroshima 84.1°F 54mi
Kurashiki 84.5°F 57mi
Takamatsu 82.6°F 57mi
Iwakuni 84.3°F 58mi
Okayama 84.4°F 66mi

* current water temperature in this city

** straight line distance from Saijō