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 5.03°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.

41.1

°F

March 31, 19:17

Trend:

stable

Yesterday:

40.0°F

Tomorrow:

40.7°F

Sunrise:

06:28

Sunset:

19:07

Day Length:

12 h. 39 min.

Plymouth in April

Minimum:

39.5°F

Average:

42.2°F

Maximum:

45.2°F

Sea water temperature in Plymouth today

As of now, in Plymouth, the water temperature is 41.1°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 0.5°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 44.8°F on 2023, while the historical minimum was 39.5°F on 2017.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 41.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Plymouth

Date	Current Year actual* / forecast**	last year	10 years average
Mar 17	38.3°F	41.2°F	39.7°F
Mar 18	39.8°F	40.8°F	39.8°F
Mar 19	39.8°F	40.5°F	39.8°F
Mar 20	38.6°F	39.9°F	39.8°F
Mar 21	40.3°F	40.4°F	39.8°F
Mar 22	39.7°F	40.8°F	40.4°F
Mar 23	39.0°F	41.1°F	40.3°F
Mar 24	38.9°F	42.1°F	40.3°F
Mar 25	39.1°F	41.6°F	40.4°F
Mar 26	37.9°F	42.8°F	40.6°F
Mar 27	38.2°F	41.4°F	40.8°F
Mar 28	41.2°F	41.5°F	41.2°F
Mar 29	40.0°F	41.6°F	41.2°F
Mar 30	40.0°F	41.6°F	41.2°F
Mar 31	41.1°F	41.4°F	41.5°F
Apr 1	40.7°F	41.1°F	41.1°F
Apr 2	41.5°F	42.4°F	41.9°F
Apr 3	41.5°F	41.4°F	42.0°F
Apr 4	41.3°F	41.2°F	41.8°F
Apr 5	41.4°F	41.3°F	41.9°F
Apr 6	41.4°F	43.9°F	41.9°F
Apr 7	42.0°F	43.3°F	42.4°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 16, 2026, dipping to 32.5°F. The average readings by season are 41.0°F in Winter, 45.1°F in Spring, 65.2°F in Summer, and 58.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
South Boston	41.6°F	32mi
Boston	41.6°F	34mi
Bristol	42.4°F	36mi
Providence	42.7°F	39mi

* current water temperature in this city

** straight line distance from Plymouth