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 12.44°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.

54.4

°F

March 25, 05:50

Trend:

stable

Yesterday:

54.4°F

Tomorrow:

54.6°F

Sunrise:

06:05

Sunset:

18:22

Day Length:

12 h. 17 min.

Saijō in March

Minimum:

56.8°F

Average:

58.4°F

Maximum:

59.7°F

Sea water temperature in Saijō today

As of now, in Saijō, the water temperature is 54.4°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 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 57.3°F on 2016, while the historical minimum was 52.2°F on 2025.

latest data

last year

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 55.0°F, with minimum temperature starting at 54.4°F, while the maximum might reach 55.8°F.

Daily water temperature in Saijō

Date	Current Year actual* / forecast**	last year	10 years average
Mar 11	53.4°F	50.6°F	53.5°F
Mar 12	53.2°F	51.3°F	53.6°F
Mar 13	53.2°F	51.8°F	53.7°F
Mar 14	53.1°F	51.0°F	53.8°F
Mar 15	53.3°F	51.6°F	53.9°F
Mar 16	52.4°F	52.1°F	53.8°F
Mar 17	53.5°F	51.2°F	54.1°F
Mar 18	53.6°F	51.8°F	54.0°F
Mar 19	54.0°F	52.3°F	54.3°F
Mar 20	53.0°F	51.6°F	54.1°F
Mar 21	54.2°F	49.4°F	54.2°F
Mar 22	53.5°F	51.3°F	54.4°F
Mar 23	54.1°F	53.0°F	54.8°F
Mar 24	54.4°F	53.5°F	54.5°F
Mar 25	54.4°F	52.2°F	54.5°F
Mar 26	54.6°F	54.0°F	54.8°F
Mar 27	54.4°F	55.5°F	54.5°F
Mar 28	54.7°F	55.7°F	54.8°F
Mar 29	55.1°F	56.0°F	55.2°F
Mar 30	55.2°F	56.2°F	55.3°F
Mar 31	55.1°F	56.4°F	55.3°F
Apr 1	55.8°F	56.5°F	55.9°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, 58.7°F in Spring, 78.2°F in Summer, and 74.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Niihama	53.2°F	8mi
Matsuyama	53.5°F	25mi
Fukuyama	52.5°F	41mi
Marugame	51.7°F	43mi
Hiroshima	53.8°F	54mi
Kurashiki	54.3°F	57mi
Takamatsu	52.3°F	57mi
Iwakuni	53.4°F	58mi
Okayama	53.3°F	66mi

* current water temperature in this city

** straight line distance from Saijō