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Japan > Saijō

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

54.3

°F

April 19, 10:33

Trend:

increasing

Yesterday:

54.0°F

Tomorrow:

54.5°F

Sunrise:

05:33

Sunset:

18:41

Day Length:

13 h. 8 min.

Saijō in April

Minimum:

56.0°F

Average:

58.1°F

Maximum:

59.6°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 54.3°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 4.2°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 63.1°F on 2024, while the historical minimum was 56.5°F on 2020.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 55.4°F, with minimum temperature starting at 54.5°F, while the maximum might reach 56.3°F.

Daily water temperature in Saijō

Date Current Year

actual* / forecast**

 last year 10 years average
Apr 5 56.0°F 58.2°F 56.6°F
Apr 6 56.6°F 58.9°F 56.8°F
Apr 7 56.8°F 58.9°F 57.0°F
Apr 8 55.9°F 59.1°F 57.2°F
Apr 9 56.1°F 59.2°F 57.3°F
Apr 10 56.7°F 58.0°F 57.3°F
Apr 11 56.2°F 56.3°F 57.1°F
Apr 12 57.5°F 56.7°F 57.4°F
Apr 13 57.6°F 57.1°F 57.7°F
Apr 14 55.7°F 59.3°F 57.9°F
Apr 15 55.3°F 59.3°F 57.6°F
Apr 16 53.6°F 59.4°F 57.5°F
Apr 17 53.4°F 61.0°F 57.7°F
Apr 18 54.0°F 60.7°F 58.2°F
Apr 19 54.3°F 63.1°F 58.5°F
Apr 20 54.5°F 62.7°F 58.7°F
Apr 21 54.7°F 62.5°F 58.9°F
Apr 22 55.1°F 62.3°F 59.3°F
Apr 23 55.5°F 62.2°F 59.6°F
Apr 24 55.8°F 62.3°F 60.0°F
Apr 25 56.1°F 62.0°F 60.3°F
Apr 26 56.3°F 62.1°F 60.5°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

January

February

March

April

May

June

July

August

September

October

November

December

In Saijō, the months July through October offer comfortable swimming conditions, which amounts to 120 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 57.1°F in Winter, 58.9°F in Spring, 77.8°F in Summer, and 74.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Niihama 54.4°F 8mi
Matsuyama 56.2°F 25mi
Fukuyama 55.9°F 41mi
Marugame 54.6°F 43mi
Hiroshima 55.2°F 54mi
Kurashiki 56.2°F 57mi
Takamatsu 53.0°F 57mi
Iwakuni 56.0°F 58mi
Okayama 53.2°F 66mi

* current water temperature in this city

** straight line distance from Saijō