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New Castle weather in September (Delaware, United States of America)

Will it be warm or cold in New Castle this September? See what weather conditions to anticipate this month with our guide.

Temperatures

The month of September in New Castle typically includes high temperatures and high rainfall. Daytime temperatures generally settle around 26°C, while nighttime can see a dip to about 16°C.

Precipitation

New Castle in September usually receives high rainfall, averaging around 106 mm for the month. You can typically expect 8 days days of rain this month, based on climate records.

Average sunshine

Enjoy a sunny month with about 218 hours of sunshine, providing a cheerful and lively atmosphere.

If you prefer dry days with pleasant temperatures, May typically offers the best circumstances. While January, February and December tend to showcase less optimal conditions.

Need inspiration to choose your next destination? Our innovative weather planner helps you discover the perfect getaway tailored to your ideal climate conditions.

 

New Castle, monthly averages in September

Min TemperatureMin Temperature 16°C  
Max TemperatureMax Temperature 26°C  
Chance of RainChance of Rain 27%  
PrecipitationPrecipitation 106 mm  
Rainy daysRainy days 8 days  
HumidityHumidity 72% *  
SunshineSunshine 218 hours *  
Percentage SunshinePercentage Sunshine 59% *  
Data from: Philadelphia, the United States of America (47 KM, 29 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.

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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
6/10
Outdoor sports
7/10

Interested in more climate information?

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

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.