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 20.32°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.

68.6

°F

November 9, 08:07

Trend:

decreasing

Yesterday:

69.0°F

Tomorrow:

68.3°F

Sunrise:

06:33

Sunset:

17:08

Day Length:

10 h. 35 min.

Niihama in November

Minimum:

53.0°F

Average:

55.4°F

Maximum:

57.1°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 68.6°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 0.7°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 70.8°F on 2023, while the historical minimum was 68.3°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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 67.7°F, the minimum temperature may reach 67.1°F, and the maximum might stay at 68.3°F.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
Oct 26	74.8°F	75.6°F	73.0°F
Oct 27	74.6°F	74.7°F	72.5°F
Oct 28	74.0°F	74.2°F	72.2°F
Oct 29	73.2°F	73.7°F	71.9°F
Oct 30	72.8°F	73.3°F	71.7°F
Oct 31	72.5°F	73.0°F	71.3°F
Nov 1	72.1°F	72.6°F	71.0°F
Nov 2	72.0°F	72.3°F	70.8°F
Nov 3	71.4°F	73.3°F	70.7°F
Nov 4	70.9°F	74.1°F	70.6°F
Nov 5	70.6°F	73.3°F	70.2°F
Nov 6	70.3°F	72.9°F	70.0°F
Nov 7	69.4°F	72.5°F	69.8°F
Nov 8	69.0°F	72.1°F	69.7°F
Nov 9	68.6°F	71.7°F	69.3°F
Nov 10	68.3°F	71.4°F	69.0°F
Nov 11	68.3°F	71.3°F	69.0°F
Nov 12	67.8°F	70.9°F	68.5°F
Nov 13	67.6°F	70.6°F	68.3°F
Nov 14	67.4°F	70.5°F	68.2°F
Nov 15	67.4°F	69.7°F	68.1°F
Nov 16	67.1°F	69.5°F	67.8°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 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	68.9°F	8mi
Matsuyama	70.2°F	32mi
Marugame	68.8°F	35mi
Fukuyama	69.4°F	36mi
Takamatsu	70.0°F	50mi
Kurashiki	68.4°F	50mi
Hiroshima	69.9°F	58mi
Okayama	69.7°F	60mi

* current water temperature in this city

** straight line distance from Niihama