Gettysburg Weather in September

In Gettysburg, September brings high daytime temperatures around 25°C (77°F), with nights cooling to 13°C (55°F). Expect quite a bit of rainfall this month.

Rainfall in Gettysburg in September

Expect around 10 days of rain based on historical data, with 123 mm (4.8 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Gettysburg in September

September in Gettysburg sees highs of 25°C (77°F) and lows of 13°C (55°F) overnight. This kind of day-to-night contrast is typical for this time of year. 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 Gettysburg in September

The month enjoys around 226 hours of sunshine, creating mostly sunny days with good weather conditions.

Should you favor a climate that's both dry and comfortably warm, August typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Gettysburg's climate page.

Gettysburg Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 33%  

Precipitation 123 mm (4.8 in)  

Rainy days 10 days  

Humidity 73% *  

Sunshine 226 hours *  

Percentage Sunshine 61% *  

* Data from: Harrisburg, the United States of America (56 KM, 35 Miles).

What to Wear in Gettysburg in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Gettysburg 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 Gettysburg's climate page.

More climate data for Gettysburg

Temperature Rainfall Sunshine Humidity

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