New Haven weather in September (Connecticut, United States of America)

What is the weather forecast for New Haven in September? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

During September, New Haven is known for its perfect weather, characterized by high temperatures and moderate rainfall. Daytime temperatures are expected to be around 25°C, cooling off to about 14°C at night.

Precipitation

New Haven in September usually receives moderate rainfall, averaging around 96 mm for the month. According to historical climate patterns, there are usually around 10 days days of rain.

Average sunshine

The days are predominantly sunny, with an estimated total of around 223 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

So this is a great month to visit if you prefer dry days with pleasant temperatures. July and September typically offer the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized New Haven climate page with graphs.

 

New Haven, monthly averages in September

Min Temperature 14°C  

Max Temperature 25°C  

Chance of Rain 33%  

Precipitation 96 mm  

Rainy days 10 days  

Humidity 72% *  

Sunshine 223 hours *  

Percentage Sunshine 60% *  

Data from: Hartford, the United States of America (54 KM, 33 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to New Haven, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in New Haven.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find 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.