Early autumn · Weather & things to do
Lunenburg & Mahone Bay in September
Lunenburg & Mahone Bay cools off: highs slip to 67°F (20°C), from 73°F in August, with lows of 53°F (12°C) and about 3.5 in (89 mm) of rain.
September opens the best stretch on our comfort score, at 85/100 (the top score of the year).

- Avg high
- 67°F (20°C)
- Avg low
- 53°F (12°C)
- Rain
- 3.5 in (89 mm)
- Humidity
- 86%
- Cloud cover
- 56%
- Daylight
- ~12 h 17 min
- Comfort score
- 85/100 · Great
What September feels like
Expect mild afternoons around 67°F (20°C), good for long walks.
After dark, temperatures fall to about 53°F (12°C).
Showers are part of the month, adding up to about 3.5 in (89 mm).
Plan around September
September is one of Lunenburg & Mahone Bay's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: June and September.
- Last of the best-scoring months: by October, the score drops to 67/100.
- Comfort improves from 73/100 in August to 85/100.
- September sits inside the Jun – Oct window our Nova Scotia Coast & Cabot Trail route recommends.
What to pack for September
- A warm layer for eveningsnights drop to 53°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Lunenburg & Mahone Bay in September
September is good outdoor weather here, so these picks lean toward the open air.
The South Shore Fish Shack
Casual waterfront spot for fish and chips and lobster rolls with harbour views.
Why now September scores 85/100 for comfort, good conditions for being outside.
Salt Shaker Deli
Bright harbour-view restaurant known for mussels, thin-crust pizza and chowder.
Ironworks Distillery
Small-batch distillery in an 1893 blacksmith shop making rum, gin and fruit spirits.
Fisheries Museum of the Atlantic
Harbourfront museum with vessels, an aquarium and stories of the Grand Banks fishery.
Blue Rocks
Tiny fishing hamlet of fish shacks on grey slate, great for kayaking and photos.
Why now Highs near 67°F and 3.5 in of monthly rain make this an easy outdoor pick.
Nearby in September
- Halifax in September~41 mi · highs 66°F, 3.8 in rain · similar daytime temperatures, about as wet
- Cape Breton Highlands & Cabot Trail in September~241 mi · highs 56°F, 3.7 in rain · 6°C (11°F) cooler by day, about as wet
- Maine in September~270 mi · highs 72°F, 3.5 in rain · 2°C (4°F) warmer by day, about as wet
- Portland, Maine in September~300 mi · highs 65°F, 3.8 in rain · 1°C (2°F) cooler by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Lunenburg & Mahone Bay in September: quick answers
Is September a good time to visit Lunenburg & Mahone Bay?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 67°F (20°C) and 3.5 in (89 mm) of rain. September is inside the Jun – Oct window our Nova Scotia Coast & Cabot Trail route recommends.
How hot is Lunenburg & Mahone Bay in September?
Average highs are 67°F (20°C) and average lows 53°F (12°C), making it the 3rd-warmest month by daytime highs.
Does it rain a lot in Lunenburg & Mahone Bay in September?
Some: about 3.5 in (89 mm) of rain falls across September on average, the 3rd-driest month of the year. The annual total is about 49.3 in (1251 mm).
What should I pack for Lunenburg & Mahone Bay in September?
Bring a warm layer for evenings (nights drop to 53°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Lunenburg & Mahone Bay
Routes in season in September
- Nova Scotia Coast & Cabot Trail Jun – Oct
Planning Lunenburg & Mahone Bay in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.





