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 15.38°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.

59.7

°F

December 31, 11:16

Trend:

stable

Yesterday:

59.6°F

Tomorrow:

59.4°F

Sunrise:

07:12

Sunset:

17:08

Day Length:

9 h. 56 min.

Saijō in January

Minimum:

56.5°F

Average:

58.4°F

Maximum:

60.0°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 59.7°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 1.0°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 fall 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 59.9°F on 2019, while the historical minimum was 57.0°F on 2017.

latest data

last year

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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 58.9°F, the minimum temperature may reach 58.3°F, and the maximum might stay at 59.4°F.

Daily water temperature in Saijō

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	59.4°F	58.3°F	58.4°F
Jan 2	59.3°F	58.0°F	58.3°F
Jan 3	59.2°F	58.0°F	58.2°F
Jan 4	59.1°F	57.9°F	58.1°F
Jan 5	59.0°F	57.6°F	58.0°F
Jan 6	58.6°F	57.5°F	57.6°F
Jan 7	58.3°F	57.1°F	57.3°F
Dec 17	61.4°F	61.3°F	61.3°F
Dec 18	60.9°F	61.2°F	60.9°F
Dec 19	61.0°F	61.0°F	60.8°F
Dec 20	59.7°F	61.0°F	60.3°F
Dec 21	60.3°F	60.0°F	60.2°F
Dec 22	60.0°F	59.7°F	59.8°F
Dec 23	60.0°F	59.5°F	59.7°F
Dec 24	59.8°F	59.5°F	59.5°F
Dec 25	59.6°F	59.2°F	59.3°F
Dec 26	59.7°F	59.0°F	59.0°F
Dec 27	59.2°F	58.5°F	58.8°F
Dec 28	59.1°F	58.7°F	58.6°F
Dec 29	59.5°F	58.8°F	58.5°F
Dec 30	59.6°F	58.9°F	58.6°F
Dec 31	59.7°F	58.5°F	58.7°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 122 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, 58.8°F in Spring, 77.9°F in Summer, and 74.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Niihama	58.6°F	8mi
Matsuyama	60.5°F	25mi
Fukuyama	56.3°F	41mi
Marugame	57.8°F	43mi
Hiroshima	59.9°F	54mi
Kurashiki	56.9°F	57mi
Takamatsu	56.8°F	57mi
Iwakuni	59.4°F	58mi
Okayama	56.5°F	66mi

* current water temperature in this city

** straight line distance from Saijō