Water temperature in Niihama
73.9
°F
June 21, 01:10
Trend:
increasingYesterday:
73.9°FTomorrow:
74.2°F
Sunrise:
Sunset:
Day Length:
14 h. 25 min.Niihama in June
Minimum:
54.5°FAverage:
56.3°FMaximum:
58.2°FSea water temperature in Niihama today
As of now, in Niihama, the water temperature is 73.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.0°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 75.4°F on 2025, while the historical minimum was 71.5°F on 2018.
Daily water temperature in Niihama
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Jun 7 | 71.8°F | 69.2°F | 70.4°F |
| Jun 8 | 71.2°F | 69.4°F | 70.1°F |
| Jun 9 | 71.2°F | 69.4°F | 70.5°F |
| Jun 10 | 70.5°F | 69.5°F | 70.7°F |
| Jun 11 | 70.0°F | 69.5°F | 71.0°F |
| Jun 12 | 71.3°F | 69.6°F | 71.0°F |
| Jun 13 | 71.5°F | 69.6°F | 71.1°F |
| Jun 14 | 71.1°F | 69.7°F | 71.2°F |
| Jun 15 | 71.0°F | 69.8°F | 71.4°F |
| Jun 16 | 71.4°F | 70.0°F | 71.9°F |
| Jun 17 | 73.7°F | 71.9°F | 72.5°F |
| Jun 18 | 73.3°F | 74.9°F | 72.8°F |
| Jun 19 | 74.2°F | 74.6°F | 72.9°F |
| Jun 20 | 73.9°F | 75.8°F | 72.9°F |
| Jun 21 | 73.9°F | 75.4°F | 72.9°F |
| Jun 22 | 74.2°F | 73.9°F | 73.2°F |
| Jun 23 | 74.3°F | 74.0°F | 73.3°F |
| Jun 24 | 74.8°F | 73.9°F | 73.8°F |
| Jun 25 | 74.9°F | 73.9°F | 73.9°F |
| Jun 26 | 75.3°F | 76.3°F | 74.3°F |
| Jun 27 | 75.5°F | 77.1°F | 74.5°F |
| Jun 28 | 75.7°F | 77.3°F | 74.8°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.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| Saijō |
72.9°F
|
8mi |
| Matsuyama |
68.7°F
|
32mi |
| Marugame |
69.5°F
|
35mi |
| Fukuyama |
71.6°F
|
36mi |
| Takamatsu |
69.7°F
|
50mi |
| Kurashiki |
69.5°F
|
50mi |
| Hiroshima |
70.9°F
|
58mi |
| Okayama |
70.2°F
|
60mi |
* current water temperature in this city
** straight line distance from Niihama