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

85.3

°F

August 12, 16:21

Trend:

increasing

Yesterday:

85.2°F

Tomorrow:

85.8°F

Sunrise:

05:26

Sunset:

18:58

Day Length:

13 h. 32 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 85.3°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 2.4°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 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 85.7°F on 2022, while the historical minimum was 80.5°F on 2023.

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 86.0°F, with minimum temperature starting at 85.8°F, while the maximum might reach 86.4°F.

Daily water temperature in Saijō

Date Current Year

actual* / forecast**

last year 10 years average
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 84.0°F
Aug 9 85.2°F 85.5°F 84.0°F
Aug 10 85.2°F 84.8°F 83.2°F
Aug 11 85.2°F 84.4°F 82.8°F
Aug 12 85.3°F 83.6°F 82.9°F
Aug 13 85.8°F 83.4°F 83.4°F
Aug 14 86.1°F 84.4°F 83.7°F
Aug 15 86.4°F 84.8°F 84.0°F
Aug 16 86.4°F 85.9°F 84.0°F
Aug 17 86.1°F 85.6°F 83.7°F
Aug 18 85.8°F 84.8°F 83.4°F
Aug 19 85.8°F 86.5°F 83.4°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 86.1°F 8mi
Matsuyama 77.6°F 25mi
Fukuyama 87.0°F 41mi
Marugame 83.0°F 43mi
Hiroshima 82.9°F 54mi
Kurashiki 87.7°F 57mi
Takamatsu 82.0°F 57mi
Iwakuni 83.3°F 58mi
Okayama 84.1°F 66mi

* current water temperature in this city

** straight line distance from Saijō