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 12.23°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.

54.0

°F

January 17, 12:59

Trend:

increasing

Yesterday:

53.9°F

Tomorrow:

54.1°F

Sunrise:

07:12

Sunset:

17:22

Day Length:

10 h. 10 min.

Niihama in January

Minimum:

55.2°F

Average:

57.2°F

Maximum:

59.2°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 54.0°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 0.8°F lower 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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 57.9°F on 2016, while the historical minimum was 52.7°F on 2021.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 53.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
Jan 3	57.5°F	56.6°F	56.9°F
Jan 4	56.7°F	56.4°F	56.8°F
Jan 5	56.8°F	56.1°F	56.6°F
Jan 6	56.7°F	56.2°F	56.3°F
Jan 7	56.5°F	55.9°F	56.0°F
Jan 8	54.9°F	56.2°F	55.7°F
Jan 9	55.3°F	56.2°F	55.5°F
Jan 10	55.2°F	56.2°F	55.4°F
Jan 11	55.5°F	55.7°F	55.4°F
Jan 12	53.8°F	55.7°F	54.9°F
Jan 13	55.1°F	54.2°F	54.8°F
Jan 14	55.1°F	51.4°F	54.5°F
Jan 15	55.4°F	53.1°F	54.8°F
Jan 16	53.9°F	52.8°F	54.7°F
Jan 17	54.0°F	53.3°F	54.9°F
Jan 18	54.1°F	53.3°F	55.0°F
Jan 19	54.2°F	53.9°F	55.0°F
Jan 20	53.9°F	53.6°F	54.8°F
Jan 21	53.3°F	52.4°F	54.1°F
Jan 22	53.4°F	52.2°F	54.2°F
Jan 23	53.6°F	52.4°F	54.5°F
Jan 24	53.6°F	51.1°F	54.4°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	56.2°F	8mi
Matsuyama	57.1°F	32mi
Marugame	52.8°F	35mi
Fukuyama	55.4°F	36mi
Takamatsu	52.3°F	50mi
Kurashiki	54.4°F	50mi
Hiroshima	57.4°F	58mi
Okayama	53.0°F	60mi

* current water temperature in this city

** straight line distance from Niihama