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United StatesThe weather in July in Boston
It's warm in July in Boston with an average temperature of 28°C. Temperatures this month range from a low of 26°C to a high of 31°C. At night, you can expect temperatures between 19°C and 22°C.
Looking for sun? July isn’t a good month to be in Boston. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in July for Boston, Massachusetts. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 38°C in 2022, Boston reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 15°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 29°C.
Water temperature
The water temperature at Boston is 18°C this month. You can swim, but it's a bit chilly.
Rainfall amount
In July, there is an average of 107 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in July for Boston
Click on any day in July to get detailed info about the usual weather on that day in Boston. Check out the historical temperatures and precipitation over the past 10 years on this day.
July weather comparison
| Boston | New York | |
|---|---|---|
| Average temperature | 28°C | 31°C |
| Max. temperature | 31°C | 33°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 107 mm | 160 mm |
| Rainy days | 15 days | 18 days |
Start of July
The month of July starts in Boston with hot temps, averaging around 28°C during the day and nights around 20°C.
Mid July
By mid-July, daytime temps rise to around 29°C, with nights around 21°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of July
By the end of July, the average daytime temperature in Boston is around 29°C, while nighttime temps are about 21°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Boston for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in July in Boston, Massachusetts. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in July in Boston
Temperature in July in Boston over the years
Precipitation charts
These charts show the average amount of precipitation in July in Boston, Massachusetts. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in July in Boston
Total precipitation in July in Boston over the years
Daily UV index in July in Boston
This chart shows the average daily UV index in July in Boston, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in July in Boston
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Average weather in Boston by month
Click on a month below to see detailed weather info for Boston. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.