Mettawa weather in September (Illinois, United States of America)

Planning a trip to Mettawa in September? This guide provides all the details you need.

In Mettawa, September is characterized by high temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 24°C. But by evening, they drop to around 13°C.

Mettawa in September usually receives moderate rainfall, averaging around 94 mm for the month. When we look at the climate data from the last 30 years, we can expect around 10 days of rain.

The days are predominantly sunny, with an estimated total of around 226 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Mettawa. September typically offers 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 Mettawa climate page with graphs.

 

Mettawa, monthly averages in September

Min Temperature 13°C  

Max Temperature 24°C  

Chance of Rain 33%  

Precipitation 94 mm  

Rainy days 10 days  

Humidity 71% *  

Sunshine 226 hours *  

Percentage Sunshine 60% *  

* Data from: Chicago, the United States of America (27 KM, 17 Miles).

Where to go in the United States of America in September

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

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

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 Mettawa in September?

For visitors traveling to Mettawa, 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 in September.

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Mettawa.

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 climate conditions. Find out where to go with our weather planner.