Triadelphia Weather in September

With daytime temperatures of 25°C (77°F) and nighttime lows of 13°C (55°F), September in Triadelphia brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 85 mm (3.3 in) falls on average.

Rainfall in Triadelphia in September

You can typically expect 11 days of rain this month, averaging around 85 mm (3.3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Triadelphia in September

September is one of the better months to visit Triadelphia. Expect 25°C (77°F) during the day and 13°C (55°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Triadelphia in September

The month enjoys around 197 hours of sunshine, creating mostly sunny days with good weather conditions.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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

Triadelphia Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 37%  

Precipitation 85 mm (3.3 in)  

Rainy days 11 days  

Humidity 72% *  

Sunshine 197 hours *  

Percentage Sunshine 53% *  

* Data from: Pittsburgh, the United States of America (60 KM, 37 Miles).

What to Wear in Triadelphia in September

For Triadelphia in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Triadelphia in September

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

Swimming

7/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

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 Triadelphia's climate page.

More climate data for Triadelphia

Temperature Rainfall Sunshine Humidity

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