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 14.64°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.

58.4

°F

November 6, 23:23

Trend:

decreasing

Yesterday:

58.8°F

Tomorrow:

58.2°F

Sunrise:

07:09

Sunset:

16:37

Day Length:

9 h. 28 min.

Portland in November

Minimum:

47.8°F

Average:

49.8°F

Maximum:

51.3°F

Sea water temperature in Portland today

As of now, in Portland, the water temperature is 58.4°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 0.6°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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 59.5°F on 2022, while the historical minimum was 56.5°F on 2020.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 57.8°F, the minimum temperature may reach 57.4°F, and the maximum might stay at 58.2°F.

Daily water temperature in Portland

Date	Current Year actual* / forecast**	last year	10 years average
Oct 23	62.0°F	59.5°F	60.2°F
Oct 24	61.1°F	59.1°F	60.1°F
Oct 25	60.8°F	58.7°F	59.7°F
Oct 26	59.9°F	58.7°F	59.5°F
Oct 27	60.1°F	58.6°F	59.6°F
Oct 28	60.0°F	58.2°F	59.4°F
Oct 29	59.6°F	58.0°F	59.2°F
Oct 30	59.8°F	57.7°F	59.1°F
Oct 31	59.5°F	57.8°F	59.1°F
Nov 1	59.3°F	57.7°F	58.8°F
Nov 2	59.1°F	57.2°F	58.6°F
Nov 3	59.0°F	57.1°F	58.2°F
Nov 4	59.0°F	56.8°F	58.0°F
Nov 5	58.8°F	57.0°F	58.0°F
Nov 6	58.4°F	56.9°F	57.8°F
Nov 7	58.2°F	57.3°F	57.6°F
Nov 8	58.0°F	56.9°F	57.4°F
Nov 9	58.0°F	57.2°F	57.4°F
Nov 10	57.8°F	57.4°F	57.2°F
Nov 11	57.7°F	57.2°F	57.1°F
Nov 12	57.4°F	57.0°F	56.9°F
Nov 13	57.5°F	57.0°F	56.9°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.

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 August 18, 2026, reaching a 68.4°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, 50.5°F in Spring, 61.8°F in Summer, and 60.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bristol	52.1°F	62mi
Barry	55.5°F	68mi
Cardiff	54.1°F	71mi
Cherbourg-Octeville	58.5°F	74mi

* current water temperature in this city

** straight line distance from Portland