Water temperature in Portland
62.4
°F
July 2, 00:52
Trend:
increasingYesterday:
62.3°FTomorrow:
62.5°F
Sunrise:
Sunset:
Day Length:
16 h. 23 min.Portland in July
Minimum:
48.4°FAverage:
50.2°FMaximum:
51.4°FSea water temperature in Portland today
As of now, in Portland, the water temperature is 62.4°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 1.8°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 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 62.4°F on 2025, while the historical minimum was 58.2°F on 2016.
Daily water temperature in Portland
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Jun 18 | 58.0°F | 60.2°F | 58.5°F |
| Jun 19 | 57.3°F | 60.9°F | 58.6°F |
| Jun 20 | 56.9°F | 61.6°F | 58.7°F |
| Jun 21 | 59.1°F | 61.1°F | 58.9°F |
| Jun 22 | 60.5°F | 61.1°F | 59.2°F |
| Jun 23 | 61.9°F | 61.0°F | 59.6°F |
| Jun 24 | 61.5°F | 61.5°F | 59.7°F |
| Jun 25 | 61.8°F | 61.1°F | 60.0°F |
| Jun 26 | 62.9°F | 60.8°F | 60.3°F |
| Jun 27 | 63.4°F | 61.1°F | 60.3°F |
| Jun 28 | 63.6°F | 62.2°F | 60.5°F |
| Jun 29 | 63.0°F | 62.2°F | 60.4°F |
| Jun 30 | 62.8°F | 62.9°F | 60.6°F |
| Jul 1 | 62.3°F | 62.9°F | 60.5°F |
| Jul 2 | 62.4°F | 62.4°F | 60.6°F |
| Jul 3 | 62.5°F | 62.9°F | 60.7°F |
| Jul 4 | 62.5°F | 62.5°F | 60.8°F |
| Jul 5 | 62.6°F | 62.5°F | 60.8°F |
| Jul 6 | 62.8°F | 62.6°F | 61.0°F |
| Jul 7 | 62.8°F | 62.9°F | 61.1°F |
| Jul 8 | 63.1°F | 63.2°F | 61.3°F |
| Jul 9 | 63.3°F | 63.0°F | 61.5°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 |
67.8°F
|
62mi |
| Barry |
66.0°F
|
68mi |
| Cardiff |
66.5°F
|
71mi |
| Cherbourg-Octeville |
61.8°F
|
74mi |
* current water temperature in this city
** straight line distance from Portland