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

66.6

°F

August 15, 02:53

Trend:

increasing

Yesterday:

66.6°F

Tomorrow:

66.8°F

Sunrise:

06:05

Sunset:

20:37

Day Length:

14 h. 32 min.

Plymouth in August

Minimum:

50.2°F

Average:

51.2°F

Maximum:

52.3°F

Sea water temperature in Plymouth today

As of now, in Plymouth, the water temperature is 66.6°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 4.1°F higher 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

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 66.6°F on 2022, while the historical minimum was 60.5°F on 2017.

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 66.5°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
Aug 1 65.5°F 62.6°F 62.3°F
Aug 2 65.0°F 62.1°F 62.3°F
Aug 3 65.2°F 62.4°F 62.3°F
Aug 4 66.5°F 62.5°F 62.2°F
Aug 5 65.7°F 62.0°F 62.1°F
Aug 6 65.0°F 61.4°F 61.8°F
Aug 7 63.4°F 62.2°F 61.6°F
Aug 8 64.2°F 62.4°F 61.8°F
Aug 9 65.0°F 62.5°F 61.9°F
Aug 10 65.0°F 62.4°F 61.8°F
Aug 11 65.0°F 62.7°F 62.1°F
Aug 12 65.9°F 63.9°F 62.6°F
Aug 13 66.4°F 64.1°F 62.7°F
Aug 14 66.6°F 64.1°F 62.5°F
Aug 15 66.6°F 64.1°F 62.5°F
Aug 16 66.8°F 64.1°F 62.8°F
Aug 17 66.9°F 64.0°F 62.8°F
Aug 18 66.6°F 63.5°F 62.5°F
Aug 19 66.5°F 63.3°F 62.4°F
Aug 20 66.3°F 63.3°F 62.2°F
Aug 21 66.2°F 63.1°F 62.1°F
Aug 22 66.2°F 63.3°F 62.1°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 August 15, 2022, reaching a 66.6°F. While the coldest temperature occurred on March 20, 2018, dipping to 45.6°F. The average readings by season are 50.9°F in Winter, 51.2°F in Spring, 60.7°F in Summer, and 59.1°F in Autumn.