Princeton weather in September (New Jersey, United States of America)

How is September weather typically in Princeton? This guide provides the necessary weather information for your travel plans.

Temperatures

Experience perfect weather in Princeton in September, characterized by high temperatures and moderate rainfall. You can expect daytime temperatures to reach around 26°C, while the nights will see a decline to about 13°C.

Precipitation

Princeton in September usually receives moderate rainfall, averaging around 88 mm for the month. Past climate data indicates that roughly 8 days will see rain.

Average sunshine

With around 215 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Princeton. September typically offers the most agreeable circumstances. On the other hand, January, February and December tend to be characterized by conditions that may not be as optimal.

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

 

Princeton, monthly averages in September

Min Temperature 13°C  

Max Temperature 26°C  

Chance of Rain 27%  

Precipitation 88 mm  

Rainy days 8 days  

Sunshine 215 hours *  

Percentage Sunshine 57% *  

Data from: Trenton, the United States of America (16 KM, 10 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?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Interested in more climate information?

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

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.