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Boston in July: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Boston in July will be like? Take a look at our weather guide for Boston, based on historical data.
Check flight prices to Boston on Avionero:
July

Weather in Boston in July 2024

Good Weather
Warm
☁️
Cloudy
Planning a trip to Boston in July? You are in luck! The weather is generally good, with an average maximum temperature of +81°F and approximately 4 sunny days. Just be prepared for some rain, as there are usually around 8 rainy days and 109 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.
Good to know:
  • July is usually the hottest month of the year in Boston;

Average weather

☀️
+81°F
Avg. max. temperature
+50°F
Min.
+100°F
Max.
109 mm
Total precipitation
68%
Avg. humidity
3 m/s
Avg. wind
4 ☀️
Sunny Days
19 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Boston has good weather in July.

Average temperature in Boston in July

Here are the expected maximum, average and minimum temperatures in Boston for July based on the historical data.
Last Year
Historical Data

The temperature in July is +86°F on average, with a range between a maximum of +99°F during the day and a minimum of +59°F at night.

The average maximum temperature goes down 9% by the end of the month, compared with the beginning of the month, from +91°F to +88°F.

Is Boston warm or cold in July?

Boston is typically warm in July.

Maximum temperatures go up compared to the previous month from +75°F to +81°F. The minimum temperature also goes up from +61°F to +66°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

July is the hottest month in Boston, here is the comparison with other months:

Climate in Boston in July

Boston weather looks like this, on average, in July and the surrounding months.
JuneJulyAugust
Avg. temperature
+75°F+81°F+79°F
Min. temperature
+45°F+50°F+46°F
Max. temperature
+97°F+100°F+97°F
Rainfall
111 mm109 mm108 mm
Wind
3 m/s3 m/s3 m/s
Humidity
68%68%70%
Air pressure
1013 HPa1013 HPa1014 HPa
Sunny days
446
Cloudy days
171917
Rainy days
988
Snowy days
000

July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +75°F to +81°F during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 111 mm to 109 mm. Humidity levels don’t change as the month goes on, averaging around 68%. The average wind speed doesn’t change much during July, staying around 3 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.

August brings much the same weather, it remains good.

Wind

Wind speed in Boston in July based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Boston is gradually decreasing during July, going from 5 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during July in Boston based on historical data.
Last Year
Historical Data
Typically, there is a 74% chance of rain on an average day in July, with total rainfall of approximately 126 mm. The maximum amount of rainfall per day is around 23 mm, which is considered light rain. July is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
July is one of the rainiest months in Boston, here is a comparison with other months, total mm:
Boston wettest month is October, where a typical day has a 26% chance of precipitation and 111 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 54 mm of rainfall per day.

How was the weather last July in Boston?

This is the weather in Boston in July 2023:
1 July
☁️
+91°F
2 July
☁️
+86°F
3 July
☁️
+85°F
4 July
☁️
+83°F
5 July
☁️
+78°F
6 July
🌧️
+83°F
7 July
☁️
+80°F
8 July
☁️
+85°F
9 July
☀️
+76°F
10 July
☀️
+79°F
11 July
☀️
+85°F
12 July
☀️
+89°F
13 July
☁️
+88°F
14 July
🌧️
+84°F
15 July
☀️
+83°F
16 July
☁️
+84°F
17 July
☁️
+88°F
18 July
☁️
+82°F
19 July
☀️
+91°F
20 July
☁️
+93°F
21 July
☀️
+93°F
22 July
☀️
+94°F
23 July
☀️
+95°F
24 July
☁️
+98°F
25 July
☁️
+89°F
26 July
☁️
+82°F
27 July
☀️
+86°F
28 July
☀️
+87°F
29 July
☁️
+90°F
30 July
☁️
+86°F
31 July
☀️
+88°F
In July 2023 Boston had 12 sunny days, 17 cloudy days, and 2 rainy days. The average maximum temperature was +86°F, with an absolute maximum of +99°F and a minimum of +77°F. The average humidity was 63%, with a maximum of 93% and a minimum of 30%. The average wind speed was 4 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in July?

Climate Change Over the Years

This is how Boston climate has changed over the last 43 years.

The climate in Boston in July has not changed that much over the last 43 years.

The average temperature was the lowest in 2000 (+78°F) and the highest in 2019 (+90°F). The driest year was 1987 with only 56 mm of rainfall, and the wettest year was 2021 with 614 mm.

FAQ

Frequently asked questions about the weather in Boston in July:

Is July a good time to visit Boston?

July is a really good time to go to Boston. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Boston.

Can you sunbathe in Boston in July?

July is warm in Boston. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Boston rainy in July?

Boston is often rainy in July. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Boston in July?

Usually, it’s not very sunny in Boston in July, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Boston

Source of the data

For this page, we’ve looked at the typical weather in Boston, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.