Things to Do in Barrie in September
September weather, activities, events & insider tips
Shoulder Season · Good Value
September Weather in Barrie
Temperature, rainfall and humidity at a glance
69°F (20°C)
High Temp
50°F (10°C)
Low Temp
3.7 inches (94 mm)
Rainfall
70%
Humidity
Is September Right for You?
Weigh the advantages and considerations before booking
Advantages
- + September hands you the final stretch of warm lake days before Barrie's waterfront empties out. Water temperatures still linger around 19°C (66°F) at Kempenfelt Bay, warm enough for a proper swim yet blissfully free of summer crowds.
- + Fall colour season kicks off mid-month, and the maple forests along the Nine Mile Portage trail ignite into flame-orange while most travellers keep speeding past on Highway 400.
- + Hotel rates drop 25-30% after Labour Day weekend. But most restaurants and attractions stay open through the month. You get summer infrastructure with shoulder-season pricing.
- + The Saturday farmers' market at City Hall keeps outdoor hours through September, so you can still score Niagara peaches and early apple varieties without battling summer tourist traffic.
Considerations
- − Evenings chill down fast, 11°C (52°F) feels sharper when you're walking back from dinner downtown in just a t-shirt, and most patios shutter by 9 PM.
- − September rain lacks drama but makes up for it in persistence. Those 10 rainy days often string together into grey three-day stretches that can sink a lake weekend.
- − Boat rentals shut down after the second week at most marinas, so if kayaking is on your list, you're racing against crews hauling equipment into winter storage.
Best Activities in September
Top things to do during your visit
Kempenfelt Bay Swimming and Beach Days
The lake reaches its warmest temperatures of the year in early September, all that summer sun finally soaking through the full water column. Centennial Beach stays quiet after Labour Day, and the morning mist lifts by 10 AM for perfect swimming minus summer's tube-sock crowds.
Booking Tip: Public beaches need no booking. But if you want paddleboard or kayak rentals, call operators by September 10th. Most pull equipment by the third week regardless of weather.
Fall Colours Photography Tours
The maple canopy along the Nine Mile Portage trail peaks around September 20-25, forming a natural tunnel of red and gold that starts at Minet's Point and runs 15 km (9.3 miles) through old-growth forest. Morning light slices through the leaves sideways around 8 AM, delivering that stained-glass effect photographers chase.
Booking Tip: Early morning light means 7:30 AM start times. Book guides who know the side trails to Sunnidale Park where the sugar maples turn first.
Downtown Food Walking Tours
September hits the sweet spot for Barrie's restaurant scene, patios stay open but kitchen crews aren't slammed like July. The walking tour covers five spots in 90 minutes, from the 40-year-old diner on Dunlop Street that still hand-cuts fries to the Italian bakery that starts baking pumpkin tarts by mid-month.
Booking Tip: Book afternoon tours starting at 2 PM. This gives you lunch leftovers for the early stops and appetite for the final dessert location.
Heritage Brewery Tours
Barrie's craft beer scene shifts into harvest mode in September. The breweries on the south end release wet-hop beers made with Ontario hops harvested that week. Tours run Thursday through Sunday and include the old railway station converted to a tasting room where original 1907 brickwork meets stainless steel tanks.
Booking Tip: Saturday afternoon sessions pack out with bachelor parties. Thursday evenings give you actual brewers answering questions instead of just tour guides.
Lake Simcoe Fishing Charters
September triggers the lake trout fall feed. The fish pile on weight before winter and strike anything that moves. Charter boats leave from three marinas and typically run 4-hour morning sessions when the lake lies glass-calm and the trout hunt in 12-18 m (40-60 ft) depths.
Booking Tip: Morning charters mean 6 AM departure. Boats provide gear but bring your own rain gear regardless of forecast, lake weather flips fast in September.
Where to Stay in Barrie in September
Hand-picked hotels across price tiers for September travellers.
September Events & Festivals
What's happening during your visit
Late September
Barrie Film Festival
Ten-day festival screens 50+ Canadian and international films at the historic Mady Centre, with director Q&As that run until 11 PM. The opening night gala spills onto Dunlop Street with outdoor screenings projected on the old courthouse wall.
Mid September
Kempenfelt Arts Festival
The waterfront park hosts 100+ artisans selling pottery, jewelry, and woodwork while acoustic musicians play from three stages. Food trucks line the harbor wall, and the whole thing runs regardless of weather, vendors just pull out the tarps.
Packing Checklist
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View Barrie Packing List →Essential Tips
Insider knowledge and common pitfalls to avoid
Insider Knowledge
The Saturday farmers' market runs 7 AM to noon. But serious local shoppers arrive before 8:30 AM when the best produce sells out. That includes the honeycrisp apples that vanish fast.
Most lakefront restaurants keep their patios open through September but start closing them randomly based on weather. Call ahead if outdoor dining matters, they won't advertise closures online.
The public boat launch at Centennial Park offers free parking after 6 PM, good for sunset paddleboard sessions when the lake turns glass-calm and the sky goes pink.
Downtown parking meters switch to free after 6 PM in September (summer enforcement ends Labour Day). This saves you significant money if you're bar-hopping or doing dinner and a show.
Avoid These Mistakes
Assuming lake swimming season ends Labour Day, locals swim through September. But tourists pack away suits and miss the warmest water of the year.
Lakefront hotels sell their north-facing balconies hard. But in September the sun sits so low that those rooms stay in cold shadow all day. Check the compass before you book or you'll pay premium rates for a chilly cave.
Summer sandals feel smart until September rain soaks fallen maple leaves into a slick mess. Flip-flops skate across that slime. Proper shoes grip and keep you upright.
Dismissing the farmers' market as 'just produce' means missing apple cider donuts that draw a 20-minute local line. The prepared food stalls roll out these September specials only once a year.
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