What is the current water temperature in Plymouth?

Q: What is the current water temperature in Plymouth?

As of now, in Plymouth, the water temperature is 12.8°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.

United States > Plymouth

Water temperature in Plymouth

Detailed information about the current water temperature in Plymouth. 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.

55.0

°F

October 31, 07:06

Trend:

decreasing

Yesterday:

55.4°F

Tomorrow:

54.9°F

Sunrise:

07:14

Sunset:

17:38

Day Length:

10 h. 24 min.

Plymouth in November

Minimum:

36.8°F

Average:

40.4°F

Maximum:

44.7°F

Sea water temperature in Plymouth today

As of now, in Plymouth, the water temperature is 55.0°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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 58.6°F on 2023, while the historical minimum was 53.1°F on 2019.

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 54.4°F, the minimum temperature may reach 53.7°F, and the maximum might stay at 54.9°F.

Daily water temperature in Plymouth

Date	Current Year actual* / forecast**	last year	10 years average
Oct 17	57.4°F	57.2°F	58.8°F
Oct 18	56.8°F	57.3°F	58.5°F
Oct 19	56.1°F	57.4°F	58.2°F
Oct 20	56.4°F	56.8°F	58.0°F
Oct 21	56.2°F	57.7°F	58.0°F
Oct 22	57.6°F	57.9°F	58.0°F
Oct 23	57.8°F	57.2°F	57.6°F
Oct 24	57.3°F	58.5°F	57.6°F
Oct 25	56.2°F	57.9°F	57.1°F
Oct 26	55.9°F	57.9°F	56.9°F
Oct 27	56.2°F	57.5°F	56.8°F
Oct 28	56.0°F	56.8°F	56.5°F
Oct 29	55.8°F	56.3°F	56.5°F
Oct 30	55.4°F	56.0°F	56.0°F
Oct 31	55.0°F	55.6°F	55.7°F
Nov 1	54.9°F	56.1°F	55.5°F
Nov 2	54.7°F	56.1°F	55.3°F
Nov 3	54.7°F	55.4°F	55.3°F
Nov 4	54.5°F	55.1°F	55.1°F
Nov 5	54.2°F	54.3°F	54.8°F
Nov 6	53.7°F	54.5°F	54.3°F
Nov 7	54.2°F	57.2°F	54.8°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 Plymouth by month

In an average year, Plymouth offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Plymouth was recorded on July 31, 2020, reaching a 76.3°F. While the coldest temperature occurred on February 22, 2025, dipping to 32.9°F. The average readings by season are 41.3°F in Winter, 44.9°F in Spring, 65.1°F in Summer, and 58.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
South Boston	54.2°F	32mi
Boston	54.2°F	34mi
Bristol	57.8°F	36mi
Providence	57.3°F	39mi

* current water temperature in this city

** straight line distance from Plymouth