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 12.1°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.

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.

53.8

°F

June 1, 03:28

Trend:

stable

Yesterday:

53.9°F

Tomorrow:

54.2°F

Sunrise:

05:10

Sunset:

20:11

Day Length:

15 h. 1 min.

Plymouth in June

Minimum:

39.3°F

Average:

41.8°F

Maximum:

44.3°F

Sea water temperature in Plymouth today

As of now, in Plymouth, the water temperature is 53.8°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 2.0°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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.4°F on 2016, while the historical minimum was 52.5°F on 2021.

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 suggests a gradual increase. The average temperature is expected to rise up to 55.0°F, with minimum temperature starting at 54.2°F, while the maximum might reach 55.6°F.

Daily water temperature in Plymouth

Date	Current Year actual* / forecast**	last year	10 years average
May 18	51.6°F	52.5°F	52.0°F
May 19	53.2°F	53.2°F	52.4°F
May 20	54.3°F	53.5°F	52.7°F
May 21	53.7°F	53.2°F	53.1°F
May 22	52.9°F	52.5°F	53.8°F
May 23	52.9°F	52.8°F	53.8°F
May 24	53.1°F	54.7°F	53.9°F
May 25	51.8°F	56.7°F	54.0°F
May 26	51.4°F	57.5°F	54.3°F
May 27	52.4°F	57.8°F	54.8°F
May 28	52.9°F	57.4°F	54.8°F
May 29	53.5°F	57.0°F	55.2°F
May 30	53.7°F	59.8°F	56.0°F
May 31	53.9°F	57.2°F	55.9°F
Jun 1	53.8°F	57.1°F	55.8°F
Jun 2	54.2°F	57.5°F	56.2°F
Jun 3	54.9°F	58.5°F	56.9°F
Jun 4	54.8°F	60.3°F	56.9°F
Jun 5	55.1°F	60.1°F	57.1°F
Jun 6	55.1°F	60.6°F	57.2°F
Jun 7	55.1°F	60.7°F	57.1°F
Jun 8	55.6°F	61.3°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 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 58.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
South Boston	54.9°F	32mi
Boston	54.9°F	34mi
Bristol	58.7°F	36mi
Providence	58.7°F	39mi

* current water temperature in this city

** straight line distance from Plymouth