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 10.34°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.

50.6

°F

February 6, 20:32

Trend:

stable

Yesterday:

52.9°F

Tomorrow:

50.8°F

Sunrise:

07:01

Sunset:

17:42

Day Length:

10 h. 41 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 50.6°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 2.1°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.0°F on 2016, while the historical minimum was 50.3°F on 2023.

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 50.4°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 23	54.8°F	52.4°F	54.5°F
Jan 24	54.8°F	51.1°F	54.5°F
Jan 25	54.8°F	51.5°F	54.2°F
Jan 26	54.4°F	51.9°F	53.8°F
Jan 27	54.5°F	52.3°F	53.9°F
Jan 28	53.1°F	52.9°F	53.9°F
Jan 29	52.6°F	52.7°F	53.8°F
Jan 30	52.1°F	50.4°F	53.3°F
Jan 31	52.0°F	50.6°F	53.2°F
Feb 1	52.5°F	51.2°F	53.0°F
Feb 2	52.8°F	51.8°F	53.0°F
Feb 3	52.9°F	52.5°F	53.1°F
Feb 4	53.0°F	52.8°F	53.1°F
Feb 5	52.9°F	52.6°F	53.0°F
Feb 6	50.6°F	51.9°F	52.7°F
Feb 7	50.8°F	52.3°F	52.9°F
Feb 8	50.6°F	52.6°F	52.7°F
Feb 9	50.5°F	52.9°F	52.6°F
Feb 10	50.4°F	51.9°F	52.5°F
Feb 11	50.3°F	54.0°F	52.4°F
Feb 12	50.1°F	53.2°F	52.3°F
Feb 13	50.1°F	52.9°F	52.2°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 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	53.5°F	8mi
Matsuyama	53.2°F	32mi
Marugame	50.8°F	35mi
Fukuyama	49.3°F	36mi
Takamatsu	50.1°F	50mi
Kurashiki	48.8°F	50mi
Hiroshima	53.3°F	58mi
Okayama	47.4°F	60mi

* current water temperature in this city

** straight line distance from Niihama