All data are in degrees Fahrenheit

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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.
Sea temperature in Niihama now

84.8

°F

August 5, 19:16

Trend:

stable

Yesterday:

85.6°F

Tomorrow:

85.2°F

Sunrise:

05:21

Sunset:

19:05

Day Length:

13 h. 44 min.

Niihama in August

Minimum:

53.3°F

Average:

55.8°F

Maximum:

57.6°F

Sea water temperature in Niihama today

As of now, in Niihama, the water temperature is 84.8°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.6°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. 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 87.2°F on 2024, while the historical minimum was 82.1°F on 2020.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 84.6°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
Jul 22 82.9°F 85.6°F 81.6°F
Jul 23 84.6°F 84.6°F 81.6°F
Jul 24 84.7°F 85.7°F 82.0°F
Jul 25 83.9°F 85.1°F 81.8°F
Jul 26 84.2°F 85.9°F 82.3°F
Jul 27 84.0°F 84.4°F 82.5°F
Jul 28 82.2°F 85.5°F 82.8°F
Jul 29 83.2°F 86.4°F 83.4°F
Jul 30 83.6°F 85.2°F 83.2°F
Jul 31 84.2°F 85.7°F 83.4°F
Aug 1 83.2°F 86.3°F 83.5°F
Aug 2 82.8°F 87.8°F 83.9°F
Aug 3 85.9°F 88.8°F 84.6°F
Aug 4 85.6°F 87.8°F 84.5°F
Aug 5 84.8°F 87.2°F 84.2°F
Aug 6 85.2°F 87.9°F 84.5°F
Aug 7 85.2°F 87.7°F 84.6°F
Aug 8 85.0°F 87.5°F 84.4°F
Aug 9 84.8°F 87.2°F 84.1°F
Aug 10 83.9°F 86.4°F 83.3°F
Aug 11 83.9°F 86.3°F 83.3°F
Aug 12 84.1°F 86.5°F 83.4°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 83.9°F 8mi
Matsuyama 79.6°F 32mi
Marugame 84.2°F 35mi
Fukuyama 83.2°F 36mi
Takamatsu 84.3°F 50mi
Kurashiki 84.4°F 50mi
Hiroshima 81.8°F 58mi
Okayama 85.1°F 60mi

* current water temperature in this city

** straight line distance from Niihama