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 14.32°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.

57.8

°F

October 31, 02:55

Trend:

stable

Yesterday:

57.7°F

Tomorrow:

57.5°F

Sunrise:

06:58

Sunset:

16:48

Day Length:

9 h. 50 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 57.8°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 1.3°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 61.0°F on 2022, while the historical minimum was 57.7°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.9°F, the minimum temperature may reach 56.3°F, and the maximum might stay at 57.5°F.

Daily water temperature in Portland

Date	Current Year actual* / forecast**	last year	10 years average
Oct 17	60.6°F	60.6°F	60.4°F
Oct 18	60.1°F	60.5°F	60.5°F
Oct 19	59.9°F	60.2°F	60.3°F
Oct 20	59.9°F	60.7°F	60.3°F
Oct 21	59.9°F	60.2°F	60.2°F
Oct 22	59.6°F	59.9°F	60.0°F
Oct 23	59.5°F	60.1°F	59.9°F
Oct 24	59.1°F	60.2°F	59.9°F
Oct 25	58.7°F	60.0°F	59.5°F
Oct 26	58.7°F	60.1°F	59.4°F
Oct 27	58.6°F	59.9°F	59.4°F
Oct 28	58.2°F	59.8°F	59.3°F
Oct 29	58.0°F	59.6°F	59.1°F
Oct 30	57.7°F	59.4°F	59.1°F
Oct 31	57.8°F	60.1°F	59.1°F
Nov 1	57.5°F	59.7°F	58.8°F
Nov 2	57.4°F	59.4°F	58.7°F
Nov 3	57.0°F	59.1°F	58.4°F
Nov 4	56.8°F	58.7°F	58.1°F
Nov 5	56.7°F	58.5°F	58.0°F
Nov 6	56.5°F	58.2°F	57.8°F
Nov 7	56.3°F	58.0°F	57.6°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, 61.4°F in Summer, and 60.2°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bristol	52.6°F	62mi
Barry	55.5°F	68mi
Cardiff	54.7°F	71mi
Cherbourg-Octeville	58.9°F	74mi

* current water temperature in this city

** straight line distance from Portland