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

81.4

°F

September 11, 23:31

Trend:

decreasing

Yesterday:

82.2°F

Tomorrow:

81.2°F

Sunrise:

05:47

Sunset:

18:21

Day Length:

12 h. 34 min.

Saijō in September

Minimum:

55.3°F

Average:

56.8°F

Maximum:

58.1°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 81.4°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.8°F lower 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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 85.9°F on 2024, while the historical minimum was 80.3°F on 2016.

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 80.8°F, the minimum temperature may reach 80.3°F, and the maximum might stay at 81.3°F.

Daily water temperature in Saijō

Date Current Year

actual* / forecast**

last year 10 years average
Aug 28 85.9°F 83.9°F 83.7°F
Aug 29 85.4°F 84.9°F 83.7°F
Aug 30 87.2°F 85.9°F 84.0°F
Aug 31 87.3°F 85.4°F 83.9°F
Sep 1 86.9°F 85.3°F 83.6°F
Sep 2 86.6°F 86.5°F 83.4°F
Sep 3 85.9°F 86.4°F 83.1°F
Sep 4 85.7°F 86.1°F 82.9°F
Sep 5 84.9°F 85.4°F 82.7°F
Sep 6 84.3°F 84.7°F 82.5°F
Sep 7 83.6°F 84.1°F 82.5°F
Sep 8 83.3°F 83.8°F 82.1°F
Sep 9 82.7°F 83.6°F 82.0°F
Sep 10 82.2°F 83.9°F 82.1°F
Sep 11 81.4°F 83.6°F 82.2°F
Sep 12 81.2°F 84.2°F 82.0°F
Sep 13 81.3°F 83.8°F 82.1°F
Sep 14 81.3°F 83.8°F 82.1°F
Sep 15 80.8°F 83.1°F 81.6°F
Sep 16 80.6°F 83.3°F 81.4°F
Sep 17 80.3°F 84.7°F 81.1°F
Sep 18 80.5°F 85.9°F 81.3°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 81.8°F 8mi
Matsuyama 77.5°F 25mi
Fukuyama 81.2°F 41mi
Marugame 81.1°F 43mi
Hiroshima 78.3°F 54mi
Kurashiki 81.2°F 57mi
Takamatsu 81.1°F 57mi
Iwakuni 78.5°F 58mi
Okayama 81.2°F 66mi

* current water temperature in this city

** straight line distance from Saijō