What is the current water temperature in Saijō?

Q: What is the current water temperature in Saijō?

As of now, in Saijō, the water temperature is 13.42°C. 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.

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.

56.2

°F

January 17, 13:23

Trend:

increasing

Yesterday:

56.0°F

Tomorrow:

56.2°F

Sunrise:

07:12

Sunset:

17:23

Day Length:

10 h. 11 min.

Saijō in January

Minimum:

56.5°F

Average:

58.6°F

Maximum:

60.0°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 56.2°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 0.3°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 stay about the same.

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 58.7°F on 2020, while the historical minimum was 55.0°F on 2023.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 55.7°F, the minimum temperature may reach 55.4°F, and the maximum might stay at 56.2°F.

Daily water temperature in Saijō

Date	Current Year actual* / forecast**	last year	10 years average
Jan 3	59.1°F	58.0°F	58.4°F
Jan 4	58.9°F	57.9°F	58.3°F
Jan 5	58.7°F	57.6°F	58.2°F
Jan 6	58.6°F	57.5°F	57.8°F
Jan 7	58.6°F	57.1°F	57.5°F
Jan 8	57.9°F	56.5°F	57.1°F
Jan 9	57.6°F	56.4°F	56.8°F
Jan 10	57.7°F	56.4°F	56.6°F
Jan 11	57.5°F	56.1°F	56.5°F
Jan 12	56.8°F	56.1°F	56.1°F
Jan 13	57.1°F	55.3°F	56.1°F
Jan 14	57.1°F	54.8°F	56.3°F
Jan 15	57.2°F	55.9°F	56.4°F
Jan 16	56.0°F	55.5°F	56.2°F
Jan 17	56.2°F	55.6°F	56.4°F
Jan 18	56.2°F	55.5°F	56.5°F
Jan 19	56.2°F	55.9°F	56.5°F
Jan 20	55.9°F	55.3°F	56.2°F
Jan 21	55.5°F	54.9°F	55.7°F
Jan 22	55.4°F	54.8°F	55.7°F
Jan 23	55.5°F	54.7°F	55.8°F
Jan 24	55.5°F	53.9°F	55.7°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 57.1°F in Winter, 58.7°F in Spring, 78.2°F in Summer, and 74.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Niihama	54.0°F	8mi
Matsuyama	57.1°F	25mi
Fukuyama	55.4°F	41mi
Marugame	52.8°F	43mi
Hiroshima	57.4°F	54mi
Kurashiki	54.4°F	57mi
Takamatsu	52.3°F	57mi
Iwakuni	55.8°F	58mi
Okayama	53.0°F	66mi

* current water temperature in this city

** straight line distance from Saijō