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 16.0°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Japan > Niihama

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.

60.8

°F

December 10, 11:14

Trend:

decreasing

Yesterday:

61.1°F

Tomorrow:

60.6°F

Sunrise:

07:01

Sunset:

16:58

Day Length:

9 h. 57 min.

Niihama in December

Minimum:

51.4°F

Average:

55.1°F

Maximum:

56.9°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 60.8°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. 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 fall 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 63.2°F on 2016, while the historical minimum was 60.2°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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 60.2°F, the minimum temperature may reach 59.4°F, and the maximum might stay at 60.6°F.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
Nov 26	65.1°F	66.5°F	65.5°F
Nov 27	65.2°F	66.3°F	65.2°F
Nov 28	65.2°F	65.8°F	64.9°F
Nov 29	65.0°F	65.3°F	64.6°F
Nov 30	63.5°F	65.1°F	64.2°F
Dec 1	64.0°F	64.6°F	64.1°F
Dec 2	62.4°F	63.2°F	63.6°F
Dec 3	62.7°F	61.1°F	63.1°F
Dec 4	63.0°F	61.4°F	62.8°F
Dec 5	62.9°F	61.8°F	62.7°F
Dec 6	61.6°F	61.9°F	62.4°F
Dec 7	62.7°F	60.8°F	62.2°F
Dec 8	60.7°F	61.1°F	61.9°F
Dec 9	61.1°F	61.5°F	61.9°F
Dec 10	60.8°F	61.7°F	61.6°F
Dec 11	60.6°F	61.5°F	61.4°F
Dec 12	60.6°F	61.6°F	61.5°F
Dec 13	60.5°F	61.7°F	61.3°F
Dec 14	60.4°F	61.9°F	61.2°F
Dec 15	60.0°F	60.1°F	60.8°F
Dec 16	59.9°F	60.6°F	60.8°F
Dec 17	59.4°F	59.2°F	60.2°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 123 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 56.1°F in Winter, 58.7°F in Spring, 78.6°F in Summer, and 74.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Saijō	61.5°F	8mi
Matsuyama	64.6°F	32mi
Marugame	60.2°F	35mi
Fukuyama	60.8°F	36mi
Takamatsu	59.6°F	50mi
Kurashiki	58.5°F	50mi
Hiroshima	62.8°F	58mi
Okayama	60.5°F	60mi

* current water temperature in this city

** straight line distance from Niihama