Water temperature in Portland
55.7
°F
May 20, 05:50
Trend:
increasingYesterday:
55.5°FTomorrow:
55.9°FSunrise:
05:14Sunset:
20:59Day Length:
15 h. 45 min.Portland in May
Minimum:
49.3°FAverage:
50.7°FMaximum:
52.2°FSea water temperature in Portland today
As of now, in Portland, the water temperature is 55.7°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.1°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 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 55.0°F on 2022, while the historical minimum was 52.2°F on 2015.
Daily water temperature in Portland
Date |
Current Year
actual* / forecast** |
last year | 10 years average |
---|---|---|---|
May 6 | 52.8°F | 52.2°F | 51.7°F |
May 7 | 52.9°F | 52.0°F | 51.8°F |
May 8 | 53.2°F | 51.6°F | 52.1°F |
May 9 | 53.1°F | 51.7°F | 52.2°F |
May 10 | 53.6°F | 52.3°F | 52.4°F |
May 11 | 53.6°F | 52.8°F | 52.4°F |
May 12 | 53.6°F | 53.2°F | 52.4°F |
May 13 | 53.8°F | 53.2°F | 52.6°F |
May 14 | 54.1°F | 53.8°F | 52.9°F |
May 15 | 54.6°F | 53.7°F | 53.1°F |
May 16 | 55.2°F | 53.6°F | 53.3°F |
May 17 | 55.1°F | 54.0°F | 53.5°F |
May 18 | 54.6°F | 53.9°F | 53.5°F |
May 19 | 55.5°F | 53.8°F | 53.3°F |
May 20 | 55.7°F | 54.1°F | 53.5°F |
May 21 | 55.9°F | 54.6°F | 53.8°F |
May 22 | 56.0°F | 54.8°F | 53.9°F |
May 23 | 56.2°F | 54.8°F | 54.0°F |
May 24 | 56.4°F | 54.5°F | 54.2°F |
May 25 | 56.6°F | 55.3°F | 54.5°F |
May 26 | 56.8°F | 55.9°F | 54.7°F |
May 27 | 57.0°F | 56.3°F | 54.9°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 | 58.2°F | 62mi |
Barry | 56.4°F | 68mi |
Cardiff | 57.9°F | 71mi |
Cherbourg-Octeville | 55.2°F | 74mi |
* current water temperature in this city
** straight line distance from Portland