Sea temperature in Boston in the United States (USA) real-time sea temperature, 7-day forecast and historical data
Do you want to swim in the sea in Boston in the United States (USA) today? First, check if the sea temperature is appropriate for swimming with our data that is updated daily, and our water temperature forecast in Boston for the next few days.
Temperature of the sea in Boston today
Currently, the sea water temperature in Boston is at most:
38°F
(or 1° lower than the seasonal norm)
Other useful information about today's weather:
- Outside temperature: 36°F to 41°F
- Partly Cloudy
- The wind is blowing at 13.1mph
- Wave height is 1.3ft on average, and 2ft at most, with a frequency of a wave every 3.5 seconds.
- More details on the sea weather of Boston page
This report was generated on 29/03/2023
7 day sea water temperature forecast in Boston
Discover the weather forecast for the water temperature in Boston for the next 7 days below. You will also find the 7-day forecast for outside temperature and wave height. For more details, hour by hour, see the chart below the listing.
Wednesday 29 March 2023

sea temperature:
38°F
Wave height: 1ft to 1.6ft
Outside temperature: 36°F to 41°F
Thursday 30 March 2023

sea temperature:
41°F
Wave height: 2.3ft to 3.3ft
Outside temperature: 31°F to 38°F
Friday 31 March 2023

sea temperature:
38°F
Wave height: 0.7ft to 2.3ft
Outside temperature: 32°F to 47°F
Saturday 1 April 2023

sea temperature:
41°F
Wave height: 1.3ft to 3.9ft
Outside temperature: 43°F to 54°F
Sunday 2 April 2023

sea temperature:
41°F
Wave height: 3ft to 4.3ft
Outside temperature: 31°F to 45°F
Monday 3 April 2023

sea temperature:
38°F
Wave height: 1ft to 3ft
Outside temperature: 31°F to 47°F
Tuesday 4 April 2023

sea temperature:
41°F
Wave height: 1.3ft to 2.6ft
Outside temperature: 38°F to 50°F
Chart of water temperature variation over 7 days
History of water temperature in Boston
We record the water temperature daily in Boston In this way, we can provide you with the average sea temperature in Boston over the last 12 months and a more detailed chart for recent months.
Monthly sea temperature averages over 12 months
- march 2023
- Average water temperature: 37°F (36°F to 40°F)
- february 2023
- Average water temperature: 39°F (36°F to 41°F)
- january 2023
- Average water temperature: 42°F (41°F to 43°F)
- december 2022
- Average water temperature: 47°F (41°F to 50°F)
- november 2022
- Average water temperature: 54°F (47°F to 58°F)
- october 2022
- Average water temperature: 57°F (54°F to 62°F)
- september 2022
- Average water temperature: 66°F (61°F to 70°F)
- august 2022
- Average water temperature: 66°F (65°F to 70°F)
- july 2022
- Average water temperature: 63°F (59°F to 65°F)
- june 2022
- Average water temperature: 59°F (54°F to 65°F)
- may 2022
- Average water temperature: 50°F (45°F to 56°F)
- april 2022
- Average water temperature: 44°F (41°F to 47°F)