All data are in degrees Fahrenheit

en

Water temperature in Portland

Detailed information about the current water temperature in Portland. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Portland now

61.1

°F

June 22, 15:55

Trend:

stable

Yesterday:

61.1°F

Tomorrow:

61.5°F

Sunrise:

04:58

Sunset:

21:26

Day Length:

16 h. 28 min.

Portland in June

Minimum:

49.1°F

Average:

50.6°F

Maximum:

51.7°F

Sea water temperature in Portland today

As of now, in Portland, the water temperature is 61.1°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 2.4°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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 60.4°F on 2022, while the historical minimum was 55.7°F on 2021.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 62.0°F, with minimum temperature starting at 61.5°F, while the maximum might reach 62.3°F.

Daily water temperature in Portland

Date Current Year

actual* / forecast**

last year 10 years average
Jun 8 57.8°F 58.3°F 56.9°F
Jun 9 58.0°F 58.0°F 57.1°F
Jun 10 58.4°F 58.3°F 57.3°F
Jun 11 58.5°F 58.1°F 57.3°F
Jun 12 58.9°F 57.9°F 57.6°F
Jun 13 59.7°F 58.1°F 57.7°F
Jun 14 59.2°F 58.0°F 57.7°F
Jun 15 59.6°F 57.8°F 57.8°F
Jun 16 60.0°F 58.1°F 58.1°F
Jun 17 59.8°F 58.2°F 58.2°F
Jun 18 60.2°F 58.6°F 58.4°F
Jun 19 60.9°F 58.7°F 58.6°F
Jun 20 61.6°F 59.1°F 58.7°F
Jun 21 61.1°F 59.1°F 58.8°F
Jun 22 61.1°F 60.1°F 58.7°F
Jun 23 61.5°F 59.9°F 59.1°F
Jun 24 61.6°F 60.3°F 59.2°F
Jun 25 61.8°F 60.7°F 59.5°F
Jun 26 62.2°F 60.8°F 59.8°F
Jun 27 62.2°F 60.6°F 59.8°F
Jun 28 62.3°F 60.8°F 59.9°F
Jun 29 62.2°F 60.4°F 59.8°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.

Sea water temperature in Portland by month

In an average year, Portland offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Portland was recorded on September 3, 2022, reaching a 67.0°F. While the coldest temperature occurred on March 5, 2018, dipping to 43.9°F. The average readings by season are 49.7°F in Winter, 50.1°F in Spring, 61.3°F in Summer, and 60.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Bristol 66.3°F 62mi
Barry 63.5°F 68mi
Cardiff 64.5°F 71mi
Cherbourg-Octeville 59.9°F 74mi

* current water temperature in this city

** straight line distance from Portland