What is the current water temperature in Portland?

Q: What is the current water temperature in Portland?

As of now, in Portland, the water temperature is 13.63°C. 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.

United Kingdom > Portland

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.

56.5

°F

November 21, 09:32

Trend:

decreasing

Yesterday:

57.1°F

Tomorrow:

56.4°F

Sunrise:

07:35

Sunset:

16:16

Day Length:

8 h. 41 min.

Portland in November

Minimum:

48.5°F

Average:

50.0°F

Maximum:

51.3°F

Sea water temperature in Portland today

As of now, in Portland, the water temperature is 56.5°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 0.8°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 56.8°F on 2021, while the historical minimum was 54.3°F on 2019.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 55.9°F, the minimum temperature may reach 55.5°F, and the maximum might stay at 56.4°F.

Daily water temperature in Portland

Date	Current Year actual* / forecast**	last year	10 years average
Nov 7	58.0°F	57.8°F	57.7°F
Nov 8	57.9°F	57.8°F	57.5°F
Nov 9	57.8°F	57.7°F	57.5°F
Nov 10	57.7°F	57.3°F	57.3°F
Nov 11	57.5°F	56.6°F	57.2°F
Nov 12	57.3°F	56.5°F	57.0°F
Nov 13	57.3°F	56.3°F	57.0°F
Nov 14	57.2°F	56.6°F	56.9°F
Nov 15	57.5°F	56.2°F	56.9°F
Nov 16	57.3°F	56.2°F	56.6°F
Nov 17	57.2°F	55.9°F	56.5°F
Nov 18	57.1°F	55.2°F	56.4°F
Nov 19	56.9°F	55.5°F	56.3°F
Nov 20	57.1°F	55.7°F	56.1°F
Nov 21	56.5°F	55.9°F	55.8°F
Nov 22	56.4°F	55.6°F	55.6°F
Nov 23	56.3°F	55.6°F	55.5°F
Nov 24	56.2°F	55.1°F	55.4°F
Nov 25	55.9°F	55.2°F	55.1°F
Nov 26	55.8°F	54.9°F	55.0°F
Nov 27	55.6°F	54.9°F	54.8°F
Nov 28	55.5°F	54.4°F	54.7°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 49.8°F in Winter, 50.1°F in Spring, 61.3°F in Summer, and 60.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bristol	51.7°F	62mi
Barry	53.0°F	68mi
Cardiff	52.3°F	71mi
Cherbourg-Octeville	56.9°F	74mi

* current water temperature in this city

** straight line distance from Portland