What is the current water temperature in Niihama?

Q: What is the current water temperature in Niihama?

As of now, in Niihama, the water temperature is 12.68°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.

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Water temperature in Niihama

Detailed information about the current water temperature in Niihama. 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.

54.8

°F

March 30, 04:31

Trend:

increasing

Yesterday:

54.7°F

Tomorrow:

54.9°F

Sunrise:

05:58

Sunset:

18:25

Day Length:

12 h. 27 min.

Niihama in April

Minimum:

54.8°F

Average:

56.8°F

Maximum:

58.6°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 54.8°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 stay about the same.

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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 56.0°F on 2020, while the historical minimum was 52.6°F on 2022.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 55.6°F, with minimum temperature starting at 54.9°F, while the maximum might reach 56.2°F.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
Mar 16	52.2°F	51.0°F	53.1°F
Mar 17	52.5°F	50.8°F	53.4°F
Mar 18	52.4°F	51.5°F	53.4°F
Mar 19	53.3°F	52.1°F	53.7°F
Mar 20	51.3°F	49.7°F	53.3°F
Mar 21	52.9°F	49.3°F	53.7°F
Mar 22	52.0°F	50.3°F	53.7°F
Mar 23	53.2°F	51.9°F	54.2°F
Mar 24	53.3°F	52.1°F	53.9°F
Mar 25	53.8°F	51.5°F	53.8°F
Mar 26	54.1°F	52.8°F	54.2°F
Mar 27	54.7°F	53.8°F	54.0°F
Mar 28	56.2°F	54.3°F	54.3°F
Mar 29	54.7°F	54.9°F	54.7°F
Mar 30	54.8°F	55.3°F	54.8°F
Mar 31	54.9°F	55.6°F	54.9°F
Apr 1	55.6°F	55.9°F	55.6°F
Apr 2	55.5°F	56.1°F	55.5°F
Apr 3	55.3°F	56.4°F	55.3°F
Apr 4	55.7°F	56.5°F	55.6°F
Apr 5	55.9°F	54.6°F	55.8°F
Apr 6	56.2°F	55.8°F	56.2°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 Niihama by month

In Niihama, the months July through October offer comfortable swimming conditions, which amounts to 124 swimming days.

The warmest water in Niihama was recorded on August 3, 2024, reaching a 88.8°F. While the coldest temperature occurred on February 26, 2022, dipping to 48.0°F. The average readings by season are 55.9°F in Winter, 58.6°F in Spring, 78.8°F in Summer, and 75.1°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Saijō	55.3°F	8mi
Matsuyama	54.2°F	32mi
Marugame	53.0°F	35mi
Fukuyama	54.6°F	36mi
Takamatsu	52.7°F	50mi
Kurashiki	54.5°F	50mi
Hiroshima	55.5°F	58mi
Okayama	53.6°F	60mi

* current water temperature in this city

** straight line distance from Niihama