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 19.59°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.

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.

67.3

°F

July 14, 05:10

Trend:

stable

Yesterday:

67.7°F

Tomorrow:

67.3°F

Sunrise:

05:19

Sunset:

20:17

Day Length:

14 h. 58 min.

Plymouth in July

Minimum:

39.5°F

Average:

41.7°F

Maximum:

44.2°F

Sea water temperature in Plymouth today

As of now, in Plymouth, the water temperature is 67.3°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 0.7°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 stay about the same.

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 72.2°F on 2024, while the historical minimum was 64.9°F on 2018.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 67.5°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
Jun 30	60.6°F	61.5°F	62.8°F
Jul 1	63.5°F	61.7°F	63.5°F
Jul 2	66.5°F	64.7°F	64.4°F
Jul 3	65.8°F	62.9°F	64.3°F
Jul 4	67.6°F	62.8°F	64.8°F
Jul 5	65.6°F	66.0°F	65.0°F
Jul 6	64.8°F	65.0°F	65.0°F
Jul 7	66.1°F	66.4°F	65.9°F
Jul 8	66.3°F	66.9°F	65.7°F
Jul 9	66.2°F	66.5°F	65.8°F
Jul 10	66.4°F	67.4°F	66.3°F
Jul 11	66.4°F	69.4°F	66.7°F
Jul 12	67.2°F	72.2°F	67.0°F
Jul 13	67.7°F	72.6°F	67.3°F
Jul 14	67.3°F	72.2°F	68.0°F
Jul 15	67.3°F	75.2°F	68.0°F
Jul 16	67.0°F	71.7°F	67.8°F
Jul 17	66.9°F	71.2°F	67.7°F
Jul 18	67.7°F	71.9°F	68.5°F
Jul 19	67.9°F	70.9°F	68.6°F
Jul 20	67.9°F	71.1°F	68.6°F
Jul 21	67.8°F	69.8°F	68.5°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	69.7°F	32mi
Boston	69.7°F	34mi
Bristol	76.7°F	36mi
Providence	76.5°F	39mi

* current water temperature in this city

** straight line distance from Plymouth