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 19.96°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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.

67.9

°F

November 21, 22:31

Trend:

decreasing

Yesterday:

68.9°F

Tomorrow:

67.7°F

Sunrise:

06:45

Sunset:

17:00

Day Length:

10 h. 15 min.

Niihama in November

Minimum:

53.0°F

Average:

55.3°F

Maximum:

57.1°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 67.9°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 1.8°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 considerably 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 67.0°F on 2022, while the historical minimum was 64.7°F on 2014.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 67.2°F, the minimum temperature may reach 66.5°F, and the maximum might stay at 67.7°F.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
Nov 7	72.5°F	71.1°F	69.8°F
Nov 8	72.1°F	71.0°F	69.6°F
Nov 9	71.7°F	70.8°F	69.2°F
Nov 10	71.4°F	70.6°F	68.9°F
Nov 11	71.3°F	70.9°F	68.8°F
Nov 12	70.9°F	70.6°F	68.4°F
Nov 13	70.7°F	70.5°F	68.2°F
Nov 14	70.6°F	69.4°F	68.1°F
Nov 15	69.7°F	69.4°F	68.0°F
Nov 16	69.5°F	68.7°F	67.6°F
Nov 17	69.1°F	68.3°F	67.2°F
Nov 18	69.5°F	67.9°F	67.0°F
Nov 19	69.3°F	67.4°F	66.9°F
Nov 20	68.9°F	67.0°F	66.8°F
Nov 21	67.9°F	65.8°F	66.1°F
Nov 22	67.7°F	65.0°F	65.9°F
Nov 23	67.6°F	65.6°F	65.8°F
Nov 24	67.4°F	64.9°F	65.6°F
Nov 25	67.2°F	64.9°F	65.4°F
Nov 26	67.1°F	64.9°F	65.3°F
Nov 27	66.8°F	64.4°F	65.0°F
Nov 28	66.5°F	64.7°F	64.8°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 121 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 56.3°F in Winter, 58.9°F in Spring, 78.2°F in Summer, and 74.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Saijō	67.1°F	8mi
Matsuyama	69.6°F	32mi
Marugame	67.8°F	35mi
Fukuyama	67.8°F	36mi
Takamatsu	68.3°F	50mi
Kurashiki	67.7°F	50mi
Hiroshima	68.6°F	58mi
Okayama	68.0°F	60mi

* current water temperature in this city

** straight line distance from Niihama