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

72.2

°F

June 21, 22:35

Trend:

stable

Yesterday:

72.5°F

Tomorrow:

72.6°F

Sunrise:

04:56

Sunset:

19:21

Day Length:

14 h. 25 min.

Saijō in June

Minimum:

56.0°F

Average:

57.8°F

Maximum:

59.0°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 72.2°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is about the same as 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 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 75.0°F on 2025, while the historical minimum was 70.0°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 73.4°F, with minimum temperature starting at 72.6°F, while the maximum might reach 74.0°F.

Daily water temperature in Saijō

Date Current Year

actual* / forecast**

last year 10 years average
Jun 7 71.3°F 68.7°F 69.5°F
Jun 8 70.8°F 68.9°F 69.4°F
Jun 9 70.6°F 68.9°F 69.9°F
Jun 10 70.0°F 69.1°F 70.0°F
Jun 11 68.9°F 69.2°F 70.3°F
Jun 12 70.5°F 69.2°F 70.4°F
Jun 13 70.7°F 69.3°F 70.6°F
Jun 14 70.4°F 69.4°F 70.9°F
Jun 15 71.0°F 69.4°F 71.0°F
Jun 16 71.2°F 69.7°F 71.5°F
Jun 17 72.8°F 70.5°F 71.9°F
Jun 18 71.8°F 73.0°F 72.1°F
Jun 19 72.8°F 74.6°F 72.0°F
Jun 20 72.5°F 75.2°F 72.1°F
Jun 21 72.2°F 75.0°F 72.4°F
Jun 22 72.6°F 74.0°F 72.7°F
Jun 23 72.8°F 73.9°F 73.0°F
Jun 24 73.3°F 73.7°F 73.5°F
Jun 25 73.4°F 73.6°F 73.6°F
Jun 26 73.7°F 75.6°F 73.9°F
Jun 27 73.9°F 77.2°F 74.1°F
Jun 28 74.0°F 74.8°F 74.2°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, 58.8°F in Spring, 78.2°F in Summer, and 74.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Niihama 73.3°F 8mi
Matsuyama 69.1°F 25mi
Fukuyama 72.5°F 41mi
Marugame 70.4°F 43mi
Hiroshima 72.0°F 54mi
Kurashiki 71.0°F 57mi
Takamatsu 71.4°F 57mi
Iwakuni 71.4°F 58mi
Okayama 71.8°F 66mi

* current water temperature in this city

** straight line distance from Saijō