Pasadena, Canada — Weather in September 2026

Climate Overview

Pasadena, Canada in September has mild conditions, with highs averaging 17.3°C (63°F) and noticeably cooler mornings. Rain falls on about 13 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 20°C (68°F) at the start to 15°C (60°F) by month's end.

September sees fairly even rainfall, totalling about 90 mm across the month.

Expect around 8.3h of sunshine at the start of September, decreasing to 6.3h by the end.

The warmest days tend to fall around the 5th, averaging 20.5°C (69°F).

Compared to August, this month is about 5°C cooler with 1 more rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

17°C / 11°C

Feels Like

16°C / 9°C

Rain

13 days · 89 mm

Sunshine

7.2h / day

Humidity

81% — Very Humid

Wind

17 km/h

Wind Direction

WSW (240°)

Gusts

44 km/h

Daylight

12.6 h

Cloud Cover

68%

Clear Sky Days

1.9

UV Index

4.1 — Moderate

Dew Point

11°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 06:58

Daylight 12.6h

Sunset 19:36

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain usually comes in shorter passing showers rather than all-day rain.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	-2°C / -7°C	-6°C / -12°C	17days (114 mm) Wet	3.3h Poor	82% Humid	1.5 Low	Poor	View Details
February	-2°C / -9°C	-7°C / -14°C	16days (108 mm) Wet	4.7h Fair	80% Humid	2.3 Moderate	Poor	View Details
March	1°C / -5°C	-4°C / -10°C	16days (99 mm) Wet	6.2h Fair	79% Humid	3 Moderate	Poor	View Details
April	5°C / -1°C	1°C / -5°C	14days (90 mm) Wet	7.2h Good	79% Humid	4.4 Moderate	Poor	View Details
May	11°C / 3°C	9°C / 0°C	12days (82 mm) Wet	8.4h Good	77% Humid	5 Moderate	Poor	View Details
June best	18°C / 9°C	17°C / 7°C	12days (93 mm) Wet	8.8h Good	77% Humid	5.1 High	Good	View Details
July best	22°C / 14°C	23°C / 14°C	13days (89 mm) Wet	9.7h Good	79% Humid	5.9 High	Excellent	View Details
August best	22°C / 15°C	22°C / 15°C	12days (93 mm) Wet	9.1h Good	80% Humid	5.2 High	Excellent	View Details
September best	17°C / 11°C	16°C / 9°C	13days (89 mm) Wet	7.2h Good	81% Humid	4.1 Moderate	Good	View Details
October	12°C / 6°C	9°C / 3°C	13days (111 mm) Wet	5.9h Fair	82% Humid	2.6 Moderate	Fair	View Details
November	6°C / 2°C	2°C / -3°C	20days (148 mm) Wet	3.2h Poor	84% Humid	1.4 Low	Wet	View Details
December	1°C / -3°C	-3°C / -8°C	18days (129 mm) Wet	2.8h Poor	83% Humid	1.1 Low	Wet	View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

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

Packing List

Layered clothingLight jacketUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Pasadena?

September is typically good for visiting Pasadena, with average highs of 17°C (63°F) and around 13 rainy days. Pasadena, Canada in September has mild conditions, with highs averaging 17.3°C (63°F) and noticeably cooler mornings. Ra

Does it rain a lot in Pasadena in September?

Pasadena typically sees around 13 rainy days in September with 89 mm (3.5 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Pasadena in September?

Nights in Pasadena during September are cool at around 11°C (52°F). Bring a jacket or sweater for evenings.

What should I pack for Pasadena in September?

With highs of 17°C (63°F) and lows of 11°C (52°F) in September, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Pasadena in September?

The average UV index in Pasadena during September is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.

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

Pasadena gets approximately 13 hours of daylight per day in September, with around 7 hours of sunshine.

Does it snow in Pasadena in September?

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

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