Weather in Halifax in September 2025
Average weather
Average temperature in Halifax in September
Going from a maximum of +81°F during the day to a minimum of +43°F during the night, the temperature in September averages around +70°F.
The average maximum temperature goes down 14% by the end of the month, compared with the beginning of the month, from +70°F to +64°F.
Is Halifax warm or cold in September?
Halifax is typically mild in September.
Maximum temperatures go down compared to the previous month from +73°F to +66°F. The minimum temperature also goes down from +61°F to +55°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
September is one of the warmest months in Halifax, here is the comparison with other months:
Climate in Halifax in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +73°F | +66°F | +57°F | ||||
| Min. temperature | ||||||
| +46°F | +37°F | +30°F | ||||
| Max. temperature | ||||||
| +91°F | +93°F | +81°F | ||||
| Rainfall | ||||||
| 98 mm | 100 mm | 123 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 4 m/s | ||||
| Humidity | ||||||
| 82% | 81% | 81% | ||||
| Air pressure | ||||||
| 1014 HPa | 1016 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 3 | 5 | 4 | ||||
| Cloudy days | ||||||
| 12 | 12 | 12 | ||||
| Rainy days | ||||||
| 15 | 13 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +73°F in the day, the average maximum temperature lowers to +66°F. Prepare for more rain. Average rainfall goes from 98 mm to 100 mm. It feels drier, as humidity decreases from 82% to 81%. The average wind speed doesn’t change much during September, staying around 3 m/s. The good news is there are likely to be more sunny days in September, from 3 to 5.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 15 m/s which is quite strong. The wind will cause branches to move and ground debris to fly around.
The average wind speed in Halifax is gradually decreasing during September, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last September in Halifax?
Climate Change Over the Years
The climate in Halifax in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1992 (+50°F) and the highest in 2022 (+56°F). The driest year was 2001 with only 590 mm of rainfall, and the wettest year was 2023 with 1951 mm.
FAQ
Is September a good time to visit Halifax?
Can you sunbathe in Halifax in September?
Is Halifax rainy in September?
Is it sunny in Halifax in September?
Other cities in Canada
Monthly weather in Halifax
Source of the data
For this page, we’ve looked at the typical weather in Halifax, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.