Halifax in September
In September, Halifax averages 20°C (68°F) during the day and 14°C (57°F) at night, with frequent rain — about 14 days of the month see precipitation (107 mm total).
High seasonConditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.
September offers comfortable temperatures in Halifax, with some rain to plan around.
How September compares to the rest of the year in Halifax
September is one of the warmest months in Halifax (3rd of 12) and one of the driest months (12th of 12). Daytime temperature runs 8°C above the annual average (12°C). September runs 3°C cooler than August (23°C) and cools 5°C in October (15°C).
September sunrise & sunset in Halifax
Times shown for Halifax local time (America/Halifax), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Halifax — September
Golden-hour and blue-hour windows for the 15th of September, in Halifax's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Halifax in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and Halifax's popularity.
Crowds & pricing — September in Halifax
This is a busy month in Halifax — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: excellent tourism weather
Sun & mosquito risk — September in Halifax
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Halifax in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 1°C / 34°F | -6°C / 21°F | 151 mm | 19 | — |
| February | 1°C / 34°F | -7°C / 20°F | 140 mm | 17 | — |
| March | 3°C / 38°F | -4°C / 25°F | 136 mm | 18 | — |
| April | 9°C / 47°F | 1°C / 34°F | 131 mm | 17 | — |
| May | 14°C / 57°F | 6°C / 43°F | 76 mm | 16 | — |
| June | 18°C / 65°F | 11°C / 52°F | 142 mm | 19 | — |
| July | 23°C / 73°F | 16°C / 61°F | 106 mm | 17 | — |
| August | 23°C / 73°F | 17°C / 62°F | 110 mm | 17 | — |
| September | 20°C / 68°F | 14°C / 57°F | 107 mm | 14 | — |
| October | 15°C / 58°F | 9°C / 48°F | 142 mm | 16 | — |
| November | 9°C / 48°F | 2°C / 36°F | 151 mm | 15 | — |
| December | 4°C / 39°F | -2°C / 28°F | 167 mm | 16 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Halifax in September →
Frequently asked questions
How hot is Halifax in September?
In September, Halifax averages a high of 20°C (68°F) and a low of 14°C (57°F) — generally mild and pleasant.
Does it rain a lot in Halifax in September?
September can be fairly wet in Halifax, with about 14 rainy days on average.
Is September a good time to visit Halifax?
September is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Halifax in September?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full September packing list for Halifax for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.