Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Naperville Weather in September
September in Naperville sees daytime temperatures around 25°C (77°F) and lows of 12°C (54°F) at night. With around 87 mm (3.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Naperville in September
Expect around 9 days of rain based on historical data, with 87 mm (3.4 in) average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Naperville in September
The excellent temperature in Naperville in September makes it a solid month to visit, with 25°C (77°F) during the day and 12°C (54°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Naperville in September
There are approximately 226 hours of sunshine this month, resulting in mostly clear days.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Naperville.
Naperville Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
25°C (77°F)
Chance of Rain
31%
Precipitation
87 mm (3.4 in)
Rainy days
9 days
Humidity
71% *
Sunshine
226 hours *
Percentage Sunshine
60% *
* Data from: Chicago, the United States of America (31 KM, 19 Miles).
Naperville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Naperville - and find the best time to visit.
Best Places 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. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Naperville in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Naperville in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Naperville 3-Day Forecast
More climate data for Naperville
Temperature Rainfall Sunshine Humidity
See the full Naperville climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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