Temperature in New England in September

Daytime highs, nighttime lows and the warmest cities in New England, the United States of America this September.

New England, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in September ranging from 21°C (70°F) in Stowe to 25°C (77°F) in Hartford. Nighttime temperatures generally drop to 13°C (55°F) in Hartford and 9°C (48°F) in Stowe.

What is the temperature of the different cities in New England, the United States of America in September?

Discover the typical September temperatures for the most popular locations of New England on the map below. Detailed insights are just a click away.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit New England, check out our New England's climate page.

See also: New England weather by month.

Best Places to Visit in New England in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New England.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in New England

New England temperatures in September: frequently asked questions

How hot does it get in New England, the United States of America in September?

Expect daytime temperatures around 24°C (75°F) in Boston. That makes September a high month for New England, the United States of America.

How cold does it get at night in New England, the United States of America in September?

Boston sees nighttime lows close to 15°C (59°F) in September.

What is the warmest city in September in New England, the United States of America?

From a thorough analysis of our records, Hartford clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 25°C (77°F), and evenings that remain near 13°C (55°F).

What is the coldest city in September in New England, the United States of America?

According to our data, Stowe holds the title for the coldest city in New England, the United States of America in September. It experiences maximum temperatures of approximately 21°C (70°F) and drops to lows of about 9°C (48°F) during the night.

How much sun does New England, the United States of America get in September?

Boston enjoys approximately 238 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

What is the water temperature in September?

Across New England, the United States of America, sea temperatures in September range from cold at 16°C (61°F) in Portland to cool at 18°C (64°F) in Boston — so swimming conditions depend on which coast you pick.

Interested in more climate information?

We have much more information about the climate in New England.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Yosemite National Park is definitely worth a visit

Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States

Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes

A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States

Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.
Must visit in the United States of America →