Water temperature in Portland
62.9
°F
September 18, 12:33
Trend:
decreasingYesterday:
63.0°FTomorrow:
62.7°F
Sunrise:
Sunset:
Day Length:
12 h. 29 min.Portland in September
Minimum:
48.4°FAverage:
50.2°FMaximum:
51.7°FSea water temperature in Portland today
As of now, in Portland, the water temperature is 62.9°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.7°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 fall 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 65.3°F on 2023, while the historical minimum was 60.8°F on 2015.
Daily water temperature in Portland
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Sep 4 | 65.7°F | 64.6°F | 64.2°F |
| Sep 5 | 65.0°F | 64.7°F | 64.2°F |
| Sep 6 | 64.9°F | 64.6°F | 64.1°F |
| Sep 7 | 65.1°F | 64.5°F | 64.2°F |
| Sep 8 | 65.2°F | 64.3°F | 64.2°F |
| Sep 9 | 65.4°F | 64.1°F | 64.3°F |
| Sep 10 | 65.0°F | 64.2°F | 64.3°F |
| Sep 11 | 64.9°F | 63.8°F | 64.0°F |
| Sep 12 | 64.4°F | 63.3°F | 63.9°F |
| Sep 13 | 64.1°F | 63.0°F | 63.8°F |
| Sep 14 | 63.9°F | 62.9°F | 63.7°F |
| Sep 15 | 63.5°F | 62.7°F | 63.6°F |
| Sep 16 | 63.3°F | 62.7°F | 63.6°F |
| Sep 17 | 63.0°F | 63.2°F | 63.5°F |
| Sep 18 | 62.9°F | 63.3°F | 63.6°F |
| Sep 19 | 62.7°F | 63.1°F | 63.4°F |
| Sep 20 | 62.8°F | 63.5°F | 63.5°F |
| Sep 21 | 62.7°F | 63.5°F | 63.4°F |
| Sep 22 | 62.6°F | 63.7°F | 63.3°F |
| Sep 23 | 62.4°F | 63.5°F | 63.1°F |
| Sep 24 | 62.3°F | 63.3°F | 63.0°F |
| Sep 25 | 62.3°F | 63.3°F | 63.0°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** |
|---|---|---|
| Bristol |
61.0°F
|
62mi |
| Barry |
62.5°F
|
68mi |
| Cardiff |
62.1°F
|
71mi |
| Cherbourg-Octeville |
63.9°F
|
74mi |
* current water temperature in this city
** straight line distance from Portland