Somerville Weather in July

July in Somerville brings high temperatures, with daytime highs of 29°C (84°F) and nights around 18°C (64°F). Quite a bit of rainfall is expected, around 101 mm (4 in), so pack an umbrella.

Rainfall in Somerville in July

You can typically expect 12 days of rain this month, averaging around 101 mm (4 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Somerville in July

Daytime highs in Somerville in July reach 29°C (84°F), with nights around 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.

Sunshine in Somerville in July

Expect sunny days throughout the month, with an estimated 300 hours of sunshine. This makes it a pleasant time to visit Somerville.

Wind Speed in Somerville in July

Average wind conditions reach 5 m/s (10 knots) in July. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

Average water temperature in July

At 18°C (64°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.

If you prefer dry days with pleasant temperatures, May, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Somerville's climate page.

Somerville Temperature in July

Min Temperature 18°C (64°F)  

Max Temperature 29°C (84°F)  

Water Temperature 18°C (64°F) *  

Chance of Rain 40%  

Precipitation 101 mm (4 in)  

Rainy days 12 days  

Humidity 71% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 300 hours *  

Percentage Sunshine 65% *  

* Data from: Boston, the United States of America (5 KM, 3 Miles).

What to Wear in Somerville in July

Warm but pleasant conditions in Somerville in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 18°C (64°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Somerville in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Somerville's climate page.

More climate data for Somerville

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Somerville climate overview or explore weather in the United States of America.