Bangor in September
September weather, activities, events & insider tips
September Weather in Bangor
Is September Right for You?
Advantages
- Peak fall foliage season - maples turn brilliant red and gold along the Penobscot River waterfront, typically peaking mid-September
- Comfortable hiking weather with temperatures perfect for exploring Acadia National Park day trips - cool mornings 11°C (52°F) warm to pleasant 21°C (70°F) afternoons
- September is peak lobster season with lowest prices of the year - local pounds offer lobster dinners for $18-25 versus $35+ in summer
- Significantly fewer crowds at Stephen King sites and downtown attractions after Labor Day, with 60% fewer tourists than August
Considerations
- Unpredictable rain showers occur 10 days of the month, often arriving suddenly in late afternoon without warning
- Many seasonal waterfront businesses close after Labor Day weekend, limiting dining options along the Penobscot River
- Daylight hours decrease rapidly from 12.5 to 11.5 hours during September, affecting outdoor activity timing
Best Activities in September
Acadia National Park Day Trips
September offers ideal hiking conditions with comfortable temperatures and spectacular fall foliage beginning. The 3.5-hour drive to Montenegro Harbor is worth it for Cadillac Mountain sunrise views and Jordan Pond trails. Crowds thin significantly after Labor Day, making parking and trail access much easier than summer months.
Stephen King Walking Tours
September's cooler weather makes walking tours of King's Bangor much more comfortable than summer heat. His house on West Broadway displays Halloween decorations starting mid-September, and the crisp autumn air adds perfect atmosphere for horror-themed walks through downtown locations from his novels.
Penobscot River Canoe Tours
September offers the most scenic paddling of the year with fall foliage reflecting in calm waters and comfortable 18°C (64°F) afternoon temperatures. Water levels are typically stable after summer heat ends, and blackfly season is completely over. Morning mist creates dramatic photography conditions.
Maine Lobster Pound Experiences
September is peak lobster season with sweetest meat and lowest prices before winter fishing restrictions begin. Traditional lobster pounds like those 30 minutes south in Bucksport offer real feels with lobsters caught that morning, served with drawn butter and corn on outdoor picnic tables.
University of Maine Campus Cultural Events
September brings students back and campus comes alive with concerts, art exhibits, and sporting events. The Hudson Museum features excellent Native American collections, and football games at Alfond Stadium create authentic Maine college town atmosphere every Saturday afternoon.
September Events & Festivals
American Folk Festival
Three-day music festival along the Penobscot River waterfront featuring traditional American folk, blues, and roots music on multiple outdoor stages. Free admission with food vendors and craft booths showcasing Maine artisans.
Kenduskeag Stream Canoe Race Training Season
September marks the beginning of training season for Maine's largest canoe race. Watch experienced paddlers practice navigating the technical sections through downtown Bangor, offering insight into this unique spring tradition.