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 10.82°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.

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.

51.5

°F

February 23, 23:49

Trend:

stable

Yesterday:

50.2°F

Tomorrow:

51.4°F

Sunrise:

06:44

Sunset:

17:57

Day Length:

11 h. 13 min.

Niihama in February

Minimum:

54.2°F

Average:

57.0°F

Maximum:

59.0°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 51.5°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 0.4°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 58.1°F on 2016, while the historical minimum was 48.5°F on 2022.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 50.7°F, the minimum temperature may reach 48.6°F, and the maximum might stay at 51.5°F.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
Feb 9	51.6°F	52.9°F	52.5°F
Feb 10	51.4°F	51.9°F	52.4°F
Feb 11	52.0°F	54.0°F	52.3°F
Feb 12	51.8°F	53.2°F	52.2°F
Feb 13	51.6°F	52.9°F	52.2°F
Feb 14	51.3°F	53.3°F	51.9°F
Feb 15	51.7°F	53.3°F	51.7°F
Feb 16	51.5°F	53.3°F	51.9°F
Feb 17	52.1°F	52.4°F	51.9°F
Feb 18	52.0°F	51.8°F	52.0°F
Feb 19	49.9°F	52.2°F	52.2°F
Feb 20	50.9°F	51.9°F	52.0°F
Feb 21	49.5°F	51.9°F	52.0°F
Feb 22	50.2°F	51.8°F	52.0°F
Feb 23	51.5°F	49.9°F	51.8°F
Feb 24	51.4°F	50.4°F	51.8°F
Feb 25	51.5°F	50.9°F	51.9°F
Feb 26	51.2°F	49.0°F	51.6°F
Feb 27	51.5°F	49.5°F	51.9°F
Feb 28	51.4°F	50.0°F	51.7°F
Mar 1	48.6°F	49.2°F	51.5°F
Mar 2	49.1°F	50.0°F	52.0°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	54.2°F	8mi
Matsuyama	53.7°F	32mi
Marugame	52.2°F	35mi
Fukuyama	51.7°F	36mi
Takamatsu	48.0°F	50mi
Kurashiki	49.9°F	50mi
Hiroshima	53.1°F	58mi
Okayama	49.7°F	60mi

* current water temperature in this city

** straight line distance from Niihama