Killam, Canada — Weather in September 2026

Climate Overview

Killam, Canada in September has mild conditions, with highs averaging 19.6°C (67°F) and noticeably cooler mornings. Temperatures drop noticeably between day and night.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 23°C (73°F) at the start to 18°C (64°F) by month's end.

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

Expect around 10.7h of sunshine at the start of September, decreasing to 9.1h by the end.

The warmest days tend to fall around the 1th, averaging 23.1°C (74°F).

Compared to August, this month is about 5°C cooler with 3 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

20°C / 8°C

Feels Like

17°C / 5°C

Rain

6 days · 26 mm

Sunshine

9.6h / day

Humidity

63% — Moderate

Wind

21 km/h

Wind Direction

WSW (254°)

Gusts

39 km/h

Daylight

12.7 h

Cloud Cover

49%

Clear Sky Days

6.8

UV Index

4.5 — Moderate

Dew Point

7°C — Dry

Moon Phase

Waxing Crescent · 11%

Snow Days

1 days · 1.9 cm

Frost Days

1 days

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 07:03

Daylight 12.7h

Sunset 19:45

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	-6°C / -14°C	-11°C / -20°C	5days (15 mm) Good	4.7h Fair	81% Humid	1.6 Low	Poor	View Details
February	-6°C / -16°C	-11°C / -22°C	4days (14 mm) Good	6.7h Fair	77% Humid	2.8 Moderate	Poor	View Details
March	1°C / -9°C	-4°C / -15°C	5days (21 mm) Good	8.7h Good	77% Humid	4.4 Moderate	Poor	View Details
April	10°C / -2°C	6°C / -7°C	5days (22 mm) Good	10.5h Excellent	62% Muggy	5 Moderate	Poor	View Details
May	19°C / 6°C	16°C / 2°C	8days (52 mm) Wet	11.9h Excellent	57% Moderate	5.5 High	Fair	View Details
June best	22°C / 11°C	20°C / 8°C	13days (89 mm) Wet	12.5h Excellent	65% Muggy	6.4 High	Good	View Details
July best	24°C / 13°C	24°C / 12°C	12days (74 mm) Wet	12.8h Excellent	70% Muggy	6.3 High	Excellent	View Details
August best	24°C / 13°C	23°C / 11°C	9days (52 mm) Wet	11.8h Excellent	65% Muggy	5.7 High	Excellent	View Details
September best	20°C / 8°C	17°C / 5°C	6days (26 mm) Good	9.6h Good	63% Muggy	4.5 Moderate	Excellent	View Details
October	11°C / 1°C	7°C / -3°C	4days (20 mm) Good	7.1h Good	65% Muggy	2.8 Moderate	Poor	View Details
November	0°C / -7°C	-4°C / -12°C	6days (24 mm) Good	4.9h Fair	79% Humid	1.5 Low	Poor	View Details
December	-7°C / -15°C	-12°C / -20°C	5days (18 mm) Good	4.3h Fair	79% Humid	1.2 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.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

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

Packing List

Warm evening layerUmbrellaComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Killam?

September is typically excellent for visiting Killam, with average highs of 20°C (67°F) and around 6 rainy days. Killam, Canada in September has mild conditions, with highs averaging 19.6°C (67°F) and noticeably cooler mornings. Temp

Does it rain a lot in Killam in September?

Killam typically sees around 6 rainy days in September with 26 mm (1 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Killam in September?

Nights in Killam during September are cool at around 8°C (47°F). Bring a jacket or sweater for evenings.

What should I pack for Killam in September?

With highs of 20°C (67°F) and lows of 8°C (47°F) in September, we recommend: Warm evening layer, Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Killam in September?

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

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

Killam gets approximately 13 hours of daylight per day in September, with around 10 hours of sunshine.

Does it snow in Killam in September?

Yes, Killam typically sees around 1 snow days in September with roughly 2 cm (1 in) of snowfall.

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