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 10.93°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.

51.7

°F

April 10, 04:17

Trend:

stable

Yesterday:

51.5°F

Tomorrow:

51.6°F

Sunrise:

06:27

Sunset:

19:56

Day Length:

13 h. 29 min.

Portland in April

Minimum:

49.0°F

Average:

50.8°F

Maximum:

52.4°F

Sea water temperature in Portland today

As of now, in Portland, the water temperature is 51.7°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 2.4°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 stay about the same.

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 51.2°F on 2024, while the historical minimum was 46.5°F on 2018.

latest data

last year

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 51.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Portland

Date	Current Year actual* / forecast**	last year	10 years average
Mar 27	49.7°F	47.8°F	48.3°F
Mar 28	49.7°F	47.2°F	48.3°F
Mar 29	50.0°F	48.1°F	48.4°F
Mar 30	50.0°F	47.4°F	48.4°F
Mar 31	50.2°F	48.4°F	48.6°F
Apr 1	50.4°F	49.1°F	48.7°F
Apr 2	50.1°F	49.4°F	48.8°F
Apr 3	50.1°F	49.3°F	48.9°F
Apr 4	50.0°F	49.3°F	48.9°F
Apr 5	50.7°F	49.7°F	49.0°F
Apr 6	50.6°F	50.1°F	49.1°F
Apr 7	51.1°F	50.0°F	49.2°F
Apr 8	50.9°F	49.9°F	49.3°F
Apr 9	51.5°F	49.6°F	49.1°F
Apr 10	51.7°F	49.6°F	49.3°F
Apr 11	51.6°F	49.7°F	49.2°F
Apr 12	51.7°F	50.2°F	49.3°F
Apr 13	51.7°F	50.1°F	49.3°F
Apr 14	51.8°F	50.4°F	49.4°F
Apr 15	51.9°F	50.2°F	49.6°F
Apr 16	52.0°F	50.1°F	49.6°F
Apr 17	52.0°F	50.3°F	49.6°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, 50.3°F in Spring, 61.5°F in Summer, and 60.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bristol	50.4°F	62mi
Barry	50.3°F	68mi
Cardiff	50.8°F	71mi
Cherbourg-Octeville	51.8°F	74mi

* current water temperature in this city

** straight line distance from Portland