Swimming in Boston in july 2025: Average sea temperature in july and tide times in july 2025
Average sea temperature in Boston in july 2025.
In july, according to seasonal norms, the sea temperature in Boston is:
Minimum: 62°F
Average: 66°F
Maximum: 70°F
Other useful seasonal weather averages in july:
- Outside temperature: 71°F to 83°F
- Most common weather: "Clear/Sunny"
- The wind blows at 13.7mph
- It rains a total of 4.7in, over 7 day(s).
Should we swim in Boston in july?
Yes... and no. The water temperature in Boston in july is cool
Swimming in july on the beaches of Boston is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 70°F, it can also be as low as 62°F! Note that the average is 66°F.
Note also that in july, the climate is good with an average outside temperature of 77°F, 4.7in of precipitation (over 7 days) and 79.37 % humidity.
Water and normal seasonal temperatures in Boston in july
| July | |||
| Average sea temperature | 66°F | ||
| Minimum sea temperature | 62°F | ||
| Maximum sea temperature | 70°F | ||
| Average outside temperature | 77°F | ||
| Maximum outside temperature | 85°F | ||
| Minimum outside temperature | 72°F | ||
| Wind speed | 9.3mph | ||
| Wind temperature | 72°F | ||
| Precipitation | 4.7in | ||
| Number of days of rain | 7 jour(s) (23%) | ||
| Humidity | 80% | ||
| Visibility in kilometers | 9km | ||
| Cloud cover | 36% | ||
| Our opinion | cool swimming |
Chart of the tides in july 2025
Tide times in july 2025 in Boston
Swim elsewhere in the United States (USA) in july
| City | Average T° | Min. T° | Max. T° | Our opinion | California in july | 68°F | 72°F | cool swimming | Washington D. C. in july | 77°F | 80°F | pleasant swimming | Miami (Florida) in july | 86°F | 88°F | ideal swimming | New York City in july | 73°F | 77°F | pleasant swimming | Seattle in july | 51°F | 53°F | freezing swimming | Houston in july | 86°F | 88°F | ideal swimming | Long Beach (Washington) in july | 59°F | 62°F | freezing swimming | Myrtle Beach in july | 82°F | 85°F | ideal swimming | Philadelphia in july | 75°F | 78°F | pleasant swimming | Portland in july | 58°F | 61°F | freezing swimming | Atlantic City in july | 75°F | 79°F | pleasant swimming | Baltimore in july | 76°F | 80°F | pleasant swimming | Bar Harbor (Maine) in july | 55°F | 61°F | freezing swimming | Brooklyn in july | 73°F | 76°F | pleasant swimming | Cape Cod National Seashore in july | 66°F | 72°F | cool swimming | Carolina Beach in july | 83°F | 85°F | ideal swimming | Gulf Shores (Alabama) in july | 86°F | 90°F | ideal swimming | Hampton Beach in july | 65°F | 70°F | cool swimming | Maryland in july | 76°F | 80°F | pleasant swimming | Mobile (Alabama) in july | 86°F | 89°F | ideal swimming |
Swim in the United States (USA) in july: sea temperature by city