All data are in degrees Fahrenheit

en

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

73.3

°F

July 7, 06:16

Trend:

increasing

Yesterday:

73.3°F

Tomorrow:

73.7°F

Sunrise:

05:02

Sunset:

19:22

Day Length:

14 h. 20 min.

Saijō in July

Minimum:

55.9°F

Average:

57.5°F

Maximum:

58.6°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 73.3°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 4.8°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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 81.9°F on 2025, while the historical minimum was 76.0°F on 2020.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 73.6°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Saijō

Date Current Year

actual* / forecast**

last year 10 years average
Jun 23 72.1°F 73.9°F 72.9°F
Jun 24 71.8°F 73.7°F 73.3°F
Jun 25 71.2°F 73.6°F 73.4°F
Jun 26 72.5°F 75.6°F 73.8°F
Jun 27 71.6°F 77.2°F 73.9°F
Jun 28 72.6°F 74.8°F 74.0°F
Jun 29 70.6°F 77.8°F 74.6°F
Jun 30 70.1°F 80.5°F 75.2°F
Jul 1 70.2°F 81.9°F 75.7°F
Jul 2 71.0°F 81.5°F 75.8°F
Jul 3 71.6°F 80.9°F 76.1°F
Jul 4 71.7°F 83.8°F 76.7°F
Jul 5 73.0°F 83.0°F 76.8°F
Jul 6 73.3°F 83.2°F 78.1°F
Jul 7 73.3°F 81.9°F 78.1°F
Jul 8 73.7°F 84.5°F 78.5°F
Jul 9 73.2°F 82.0°F 78.0°F
Jul 10 73.5°F 82.8°F 78.4°F
Jul 11 73.5°F 82.1°F 78.3°F
Jul 12 73.5°F 81.7°F 78.4°F
Jul 13 73.8°F 81.6°F 78.6°F
Jul 14 74.2°F 81.7°F 79.1°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 57.0°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 73.2°F 8mi
Matsuyama 71.2°F 25mi
Fukuyama 74.2°F 41mi
Marugame 74.2°F 43mi
Hiroshima 72.6°F 54mi
Kurashiki 74.2°F 57mi
Takamatsu 73.4°F 57mi
Iwakuni 73.6°F 58mi
Okayama 74.7°F 66mi

* current water temperature in this city

** straight line distance from Saijō