Chatham weather in September (Massachusetts, United States of America)

What's the typical weather in Chatham for September? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

You’ll find the weather in Chatham during September to be perfect, with pleasant temperatures and moderate rainfall. September is known for being in the summer season. In the daytime, temperatures tend to hover near 22°C, cooling down at night to around 15°C.

Precipitation

Chatham in September usually receives moderate rainfall, averaging around 82 mm for the month. Rain is expected on roughly 8 days.

Average sunshine

With approximately 231 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. June, July, August and September generally stand out with the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

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

 

Chatham, monthly averages in September

Min Temperature 15°C  

Max Temperature 22°C  

Chance of Rain 25%  

Precipitation 82 mm  

Rainy days 8 days  

Sunshine 231 hours *  

Percentage Sunshine *  

* Data from: Nantucket, the United States of America (45 KM, 28 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 Chatham, 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.

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 Chatham.

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.