West Chester Weather in September

West Chester in September sees high temperatures, with highs around 26°C (79°F) and overnight lows of 13°C (55°F). Rainfall is fairly high at around 125 mm (4.9 in) on average, so pack waterproofs just in case.

Rainfall in West Chester in September

Historically, September sees about 9 days of rain, with a monthly average of 125 mm (4.9 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in West Chester in September

September in West Chester brings typical temperatures with highs around 26°C (79°F) and lows of 13°C (55°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 13°C (55°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 West Chester in September

The month enjoys around 218 hours of sunshine, creating mostly sunny days with good weather conditions.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit West Chester.

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• January
• February
• March
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• May
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• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our West Chester's climate page.

West Chester Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 30%  

Precipitation 125 mm (4.9 in)  

Rainy days 9 days  

Humidity 72% *  

Sunshine 218 hours *  

Percentage Sunshine 59% *  

* Data from: Philadelphia, the United States of America (37 KM, 23 Miles).

What to Wear in West Chester in September

Warm but pleasant conditions in West Chester in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in West Chester in September

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our West Chester's climate page.

More climate data for West Chester

Temperature Rainfall Sunshine Humidity

See the full West Chester climate overview or explore weather in the United States of America.