Halifax, Canada — Weather in September 2026

Climate Overview

Halifax, Canada in September has mild conditions, with highs averaging 19.5°C (67°F) and noticeably cooler mornings. Sea temperature stays cool at 18°C (64°F).

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 21°C (69°F) at the start to 18°C (65°F) by month's end.

Rainfall is heaviest during the last third of the month, while the middle tends to be drier.

Expect around 9.2h of sunshine at the start of September, decreasing to 7.4h by the end.

The warmest days tend to fall around the 6th, averaging 20.9°C (70°F).

Compared to August, this month is about 3°C cooler with 2 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

20°C / 15°C

Feels Like

19°C / 14°C

Rain

8 days · 85 mm

Sunshine

8.2h / day

Humidity

80% — Very Humid

Wind

18 km/h

Wind Direction

WSW (253°)

Gusts

41 km/h

Daylight

12.5 h

Cloud Cover

60%

Clear Sky Days

4.8

UV Index

4.9 — Moderate

Sea Temperature

18°C

Dew Point

14°C — Comfortable

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:54

Daylight 12.6h

Sunset 19:28

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	1°C / -5°C	-3°C / -10°C	12days (121 mm) Wet	4.9h Fair	76% Humid	1.9 Low	Poor	View Details
February	1°C / -5°C	-3°C / -11°C	11days (120 mm) Wet	6.1h Fair	75% Muggy	3 Moderate	Poor	View Details
March	4°C / -2°C	-1°C / -7°C	12days (103 mm) Wet	7.4h Good	75% Muggy	3.6 Moderate	Poor	View Details
April	8°C / 2°C	5°C / -2°C	12days (107 mm) Wet	8.2h Good	76% Humid	4.8 Moderate	Poor	View Details
May	13°C / 6°C	11°C / 3°C	10days (72 mm) Wet	9h Good	79% Humid	5.7 High	Fair	View Details
June	18°C / 12°C	17°C / 10°C	11days (95 mm) Wet	9.4h Good	83% Humid	5.9 High	Good	View Details
July best	22°C / 17°C	23°C / 17°C	10days (77 mm) Wet	9.8h Good	85% Humid	6.6 High	Excellent	View Details
August best	22°C / 17°C	24°C / 18°C	10days (82 mm) Wet	9.8h Good	82% Humid	6 High	Excellent	View Details
September best	20°C / 15°C	19°C / 14°C	8days (85 mm) Wet	8.2h Good	80% Humid	4.9 Moderate	Excellent	View Details
October	15°C / 10°C	13°C / 7°C	10days (108 mm) Wet	6.8h Fair	78% Humid	3.5 Moderate	Good	View Details
November	9°C / 4°C	5°C / -1°C	12days (128 mm) Wet	4.8h Fair	76% Humid	1.9 Low	Poor	View Details
December	4°C / -2°C	-1°C / -7°C	12days (127 mm) Wet	4.5h Fair	76% Humid	1.5 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Halifax?

September is typically excellent for visiting Halifax, with average highs of 20°C (67°F) and around 8 rainy days. Halifax, Canada in September has mild conditions, with highs averaging 19.5°C (67°F) and noticeably cooler mornings. Sea

Does it rain a lot in Halifax in September?

Halifax typically sees around 8 rainy days in September with 85 mm (3.3 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Halifax in September?

Evenings in Halifax during September are mild at 15°C (59°F). A light cardigan is usually enough.

What should I pack for Halifax in September?

With highs of 20°C (67°F) and lows of 15°C (59°F) in September, we recommend: Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.

Is September among the best months weather-wise in Halifax?

Yes, September offers some of the best weather conditions in Halifax with comfortable temperatures and lower chances of rain.

What is the UV index in Halifax in September?

The average UV index in Halifax during September is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Halifax in September?

Halifax gets approximately 13 hours of daylight per day in September, with around 8 hours of sunshine.

Does it snow in Halifax in September?

Snow is uncommon in Halifax during September based on 10-year climate averages.

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