What is the current water temperature in South Boston?

Q: What is the current water temperature in South Boston?

As of now, in South Boston, the water temperature is 17.87°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

United States > South Boston

Water temperature in South Boston

Detailed information about the current water temperature in South Boston. 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.

64.2

°F

June 17, 09:09

Trend:

stable

Yesterday:

64.8°F

Tomorrow:

64.4°F

Sunrise:

05:07

Sunset:

20:23

Day Length:

15 h. 16 min.

South Boston in June

Minimum:

38.9°F

Average:

41.7°F

Maximum:

44.2°F

Sea water temperature in South Boston today

As of now, in South Boston, the water temperature is 64.2°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 3.3°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 63.4°F on 2023, while the historical minimum was 59.2°F on 2019.

latest data

last year

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 65.2°F, with minimum temperature starting at 64.4°F, while the maximum might reach 65.8°F.

Daily water temperature in South Boston

Date	Current Year actual* / forecast**	last year	10 years average
Jun 3	56.1°F	54.2°F	57.5°F
Jun 4	58.0°F	55.1°F	57.9°F
Jun 5	60.0°F	57.0°F	58.4°F
Jun 6	61.1°F	56.7°F	58.4°F
Jun 7	59.7°F	58.5°F	58.4°F
Jun 8	61.4°F	60.7°F	59.1°F
Jun 9	61.1°F	59.3°F	59.1°F
Jun 10	62.4°F	58.8°F	59.1°F
Jun 11	63.5°F	58.5°F	59.8°F
Jun 12	64.3°F	58.4°F	60.0°F
Jun 13	64.8°F	60.4°F	60.6°F
Jun 14	65.4°F	60.4°F	60.3°F
Jun 15	65.4°F	59.4°F	60.5°F
Jun 16	64.8°F	59.3°F	60.9°F
Jun 17	64.2°F	60.7°F	60.9°F
Jun 18	64.4°F	59.2°F	61.1°F
Jun 19	64.7°F	60.9°F	61.4°F
Jun 20	65.3°F	62.6°F	62.1°F
Jun 21	65.5°F	64.0°F	62.2°F
Jun 22	65.8°F	62.9°F	62.5°F
Jun 23	65.6°F	62.0°F	62.3°F
Jun 24	65.4°F	61.6°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 South Boston by month

In an average year, South Boston offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in South Boston was recorded on July 29, 2020, reaching a 75.0°F. While the coldest temperature occurred on February 1, 2026, dipping to 32.0°F. The average readings by season are 40.7°F in Winter, 45.4°F in Spring, 65.2°F in Summer, and 58.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Boston	64.2°F	2mi
Salem	62.7°F	15mi
Plymouth	62.8°F	32mi
Providence	68.7°F	40mi
Bristol	69.6°F	47mi

* current water temperature in this city

** straight line distance from South Boston