Water temperature in Plymouth
66.3
°F
July 15, 16:18
Trend:
increasingYesterday:
65.5°FTomorrow:
66.3°F
Sunrise:
Sunset:
Day Length:
16 h. 0 min.Plymouth in July
Minimum:
50.3°FAverage:
51.2°FMaximum:
52.1°FSea water temperature in Plymouth today
As of now, in Plymouth, the water temperature is 66.3°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 5.0°F higher 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 stay about the same.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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 63.6°F on 2025, while the historical minimum was 58.7°F on 2016.
Daily water temperature in Plymouth
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Jul 1 | 63.1°F | 61.4°F | 60.2°F |
| Jul 2 | 63.1°F | 62.1°F | 60.1°F |
| Jul 3 | 62.8°F | 61.4°F | 60.1°F |
| Jul 4 | 62.3°F | 61.8°F | 59.9°F |
| Jul 5 | 62.6°F | 61.7°F | 59.9°F |
| Jul 6 | 62.3°F | 61.6°F | 60.0°F |
| Jul 7 | 63.1°F | 61.3°F | 60.1°F |
| Jul 8 | 63.4°F | 60.1°F | 60.2°F |
| Jul 9 | 63.4°F | 59.7°F | 60.4°F |
| Jul 10 | 64.6°F | 60.5°F | 60.8°F |
| Jul 11 | 65.6°F | 61.4°F | 61.1°F |
| Jul 12 | 66.5°F | 62.4°F | 61.3°F |
| Jul 13 | 66.6°F | 63.3°F | 61.5°F |
| Jul 14 | 65.5°F | 63.8°F | 61.5°F |
| Jul 15 | 66.3°F | 63.6°F | 61.3°F |
| Jul 16 | 66.3°F | 63.5°F | 61.3°F |
| Jul 17 | 66.7°F | 63.6°F | 61.7°F |
| Jul 18 | 66.9°F | 63.4°F | 61.9°F |
| Jul 19 | 67.3°F | 63.5°F | 62.3°F |
| Jul 20 | 67.2°F | 63.1°F | 62.2°F |
| Jul 21 | 67.0°F | 63.2°F | 61.9°F |
| Jul 22 | 67.3°F | 62.9°F | 62.3°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.