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New Haven

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New Haven Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

New Haven year round climate

  • Spring (March–May): Average 6.6–16.5°C, mild but with possible showers; March and April are rainier. Typical activities: Outdoor walks, flower viewing. Suggested clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 21.3–25.6°C, warm and humid with occasional thunderstorms. July is the rainier month. Typical activities: Picnics, outdoor sports, museum visits. Suggested clothing: Light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 9.3–20.3°C, pleasant and cool and dry, with decreasing rainfall. Typical activities: Outdoor activities, fall foliage viewing (if applicable). Suggested clothing: Comfortable long-sleeved shirts, light jacket.
  • Winter (December–February): Average 2.3–4.3°C, cold and humid with more rainfall, especially in December. Typical activities: Indoor activities, museum visits, enjoying hot drinks. Suggested clothing: Warm coat, scarf, hat, gloves.

New Haven climatological average

Annual average temperature: approx. 13°C / Annual rainfall: approx. 1165 mm / Summer humidity: 65%–75% / Rainiest month: December

New Haven monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
2.3°C
120.3
February
2.8°C
55.7
March
6.6°C
141.3
April
11.2°C
84.7
May
16.5°C
78.7
June
21.3°C
68.7
July
25.6°C
130
August
24.2°C
86.3
September
20.3°C
118.7
October
14.7°C
57.3
November
9.3°C
72.3
December
4.3°C
151.7

New Haven weather for the next seven days

12/10
Wednesday
Moderate rain
7.9°C/-0.4°C
12/11
Thursday
Patchy rain nearby
2.1°C/-2.4°C
12/12
Friday
Sunny
1.9°C/-5.2°C
12/13
Saturday
Sunny
1.3°C/-5.2°C
12/14
Sunday
Light freezing rain
0.2°C/-4.6°C
12/15
Monday
Sunny
-2.1°C/-5.9°C
12/16
Tuesday
Cloudy
0°C/-3.1°C

New Haven Frequently Asked Questions and Useful Information for Travel

Is it worth visiting New Haven, CT?

Absolutely! New Haven, Connecticut offers a wealth of attractions. From the stunning architecture and world-class collections at the Yale University Art Gallery to its globally-inspired culinary scene, there's so much to explore and delight in.

What are the top things to do in New Haven, Connecticut?

Must-see sights and activities in New Haven include the Yale University Art Gallery, exploring the historic Yale University campus, taking walking tours, and visiting significant historic sites. For personalized recommendations, consider using an AI trip planner.

How can I spend a perfect day in New Haven?

Spend a day exploring New Haven by visiting popular attractions like the New Haven Green, experiencing the New Haven Symphony Orchestra, or immersing yourself in the Yale University Art Gallery. You can also stroll through the downtown area filled with upscale eateries and shops, or enjoy a slice of New Haven's famous "apizza".

What is New Haven, Connecticut most famous for?

New Haven, Connecticut is renowned for Yale University, its pioneering bioscience and technology industries, and its rich cultural and arts heritage, featuring acclaimed theaters, museums, and its unique "apizza". The city also has a legacy of invention, with significant innovations originating from the region.

What are the educational and innovation highlights of New Haven?

New Haven is a prominent center for education, most notably home to Yale University, an esteemed Ivy League institution founded in 1701, celebrated for its historic architecture and extensive collections. The region is also a leading hub for innovation in biotech, healthcare, and technology, supported by significant research institutions and medical facilities.