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Halifax Weather in September
Halifax in September sees pleasant daytime temperatures of 20°C (68°F) and nighttime lows of 13°C (55°F). Rainfall is fairly high this month at around 107 mm (4.2 in), so pack a rain jacket to stay dry.
Rainfall in Halifax in September
Analyzing past climate data, one can expect approximately 10 days of rain, averaging 107 mm (4.2 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Halifax in September
In September, expect pleasant temperatures in Halifax, with highs of 20°C (68°F) and lows of 13°C (55°F) at night. September is in the summer season. Conditions are often most pleasant around the middle of the day. At 13°C (55°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 Halifax in September
The month experiences a moderate amount of sunlight, with 180 hours of sunshine. This provides a nice balance between sunshine and clouds.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Halifax.
Halifax Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
20°C (68°F)
Chance of Rain
34%
Precipitation
107 mm (4.2 in)
Rainy days
10 days
Humidity
65%
Sunshine
180 hours
Percentage Sunshine
46%
Halifax Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Halifax - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Halifax typically drop from around 21°C (70°F) at the start of September to approximately 18°C (64°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Halifax in September
Browse day-by-day weather records for Halifax spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Halifax historical weather extremes in September
Based on weather observations in Halifax between 1980 and 2026, these are the recorded extremes during September.
- The warmest day in September was on September 1, 2010, with a maximum of 34°C (93°F).
- The lowest daytime temperature in September was 8°C (46°F), recorded on September 30, 1981.
- Halifax registered its coldest September night on September 29, 1980, with temperatures dropping to -1°C (30°F).
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada 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 Halifax in September
For Halifax in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Halifax in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Halifax 3-Day Forecast
More climate data for Halifax
Temperature Rainfall Sunshine Humidity
See the full Halifax climate overview or explore weather in Canada.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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