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 19.45°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.

67.0

°F

June 2, 01:30

Trend:

increasing

Yesterday:

66.5°F

Tomorrow:

67.4°F

Sunrise:

04:57

Sunset:

19:13

Day Length:

14 h. 16 min.

Niihama in June

Minimum:

54.5°F

Average:

56.3°F

Maximum:

58.2°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 67.0°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 2.3°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 71.7°F on 2015, while the historical minimum was 67.3°F on 2023.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 67.7°F, with minimum temperature starting at 67.4°F, while the maximum might reach 68.1°F.

Daily water temperature in Niihama

Date	Current Year actual* / forecast**	last year	10 years average
May 19	64.4°F	63.9°F	64.9°F
May 20	64.9°F	64.5°F	65.1°F
May 21	64.9°F	65.0°F	65.3°F
May 22	65.0°F	63.5°F	65.5°F
May 23	66.4°F	63.8°F	66.3°F
May 24	66.6°F	65.4°F	66.8°F
May 25	66.7°F	65.5°F	67.4°F
May 26	66.4°F	65.6°F	67.8°F
May 27	66.5°F	65.7°F	68.0°F
May 28	66.7°F	65.9°F	68.4°F
May 29	66.8°F	66.8°F	68.5°F
May 30	66.8°F	66.1°F	68.6°F
May 31	67.6°F	66.4°F	68.9°F
Jun 1	66.5°F	66.7°F	68.8°F
Jun 2	67.0°F	69.6°F	69.4°F
Jun 3	67.4°F	69.1°F	69.7°F
Jun 4	67.5°F	68.8°F	69.9°F
Jun 5	67.7°F	68.3°F	70.1°F
Jun 6	67.9°F	68.7°F	70.3°F
Jun 7	68.0°F	69.4°F	70.3°F
Jun 8	67.7°F	69.8°F	70.0°F
Jun 9	68.1°F	69.8°F	70.4°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 122 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, 78.5°F in Summer, and 74.7°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Saijō	66.4°F	8mi
Matsuyama	61.4°F	32mi
Marugame	65.1°F	35mi
Fukuyama	64.9°F	36mi
Takamatsu	64.9°F	50mi
Kurashiki	65.7°F	50mi
Hiroshima	62.7°F	58mi
Okayama	67.0°F	60mi

* current water temperature in this city

** straight line distance from Niihama