All data are in degrees Fahrenheit

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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.
Sea temperature in Plymouth now

60.1

°F

June 7, 19:09

Trend:

increasing

Yesterday:

57.4°F

Tomorrow:

60.5°F

Sunrise:

05:08

Sunset:

20:16

Day Length:

15 h. 8 min.

Plymouth in June

Minimum:

39.3°F

Average:

41.6°F

Maximum:

44.3°F

Sea water temperature in Plymouth today

As of now, in Plymouth, the water temperature is 60.1°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 2.4°F higher 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 rise 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 60.7°F on 2024, while the historical minimum was 53.9°F on 2017.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 60.9°F, with minimum temperature starting at 59.9°F, while the maximum might reach 62.1°F.

Daily water temperature in Plymouth

Date Current Year

actual* / forecast**

last year 10 years average
May 24 56.2°F 53.1°F 54.2°F
May 25 56.2°F 51.8°F 54.2°F
May 26 56.1°F 51.4°F 54.5°F
May 27 55.1°F 52.4°F 54.8°F
May 28 56.0°F 52.9°F 54.9°F
May 29 57.4°F 53.5°F 55.4°F
May 30 58.5°F 53.7°F 56.1°F
May 31 54.2°F 53.9°F 55.4°F
Jun 1 55.5°F 54.0°F 55.5°F
Jun 2 56.3°F 56.8°F 56.3°F
Jun 3 53.9°F 53.1°F 56.6°F
Jun 4 56.1°F 55.1°F 56.9°F
Jun 5 57.8°F 57.0°F 57.5°F
Jun 6 57.4°F 55.9°F 57.4°F
Jun 7 60.1°F 60.4°F 57.7°F
Jun 8 60.5°F 59.5°F 58.1°F
Jun 9 60.1°F 59.7°F 57.7°F
Jun 10 59.9°F 60.0°F 57.5°F
Jun 11 61.0°F 60.0°F 58.6°F
Jun 12 61.2°F 59.8°F 58.8°F
Jun 13 61.9°F 60.3°F 59.5°F
Jun 14 62.1°F 59.4°F 59.7°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 59.7°F 32mi
Boston 59.7°F 34mi
Bristol 64.3°F 36mi
Providence 65.1°F 39mi

* current water temperature in this city

** straight line distance from Plymouth