Harrisburg
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Harrisburg Weather in September

Thinking of visiting Harrisburg in September? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 14°C (57°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Harrisburg in September

Historically, the month has about 9 days of rain, averaging 122 mm (4.8 in) in total. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Harrisburg in September

September in Harrisburg brings typical temperatures with highs around 25°C (77°F) and lows of 14°C (57°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Harrisburg in September

With approximately 226 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Harrisburg.

Harrisburg Temperature in September

Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
30%
Precipitation
122 mm (4.8 in)
Rainy days
9 days
Humidity
73%
Sunshine
226 hours
Percentage Sunshine
61%

Harrisburg Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Harrisburg - 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 Harrisburg 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 Harrisburg in September

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

  • Swimming
    9/10
  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    6/10
  • Outdoor sports
    9/10

Harrisburg 3-Day Forecast

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.