Goderich, Canada — Weather in September 2026

Monthly climate averages for Goderich, Canada. Based on 10-year ERA5 reanalysis data.

Cfb Oceanic
8.3 /10
Excellent

September is an excellent month in Goderich

Climate Overview

Goderich, Canada in September has warm conditions, with highs averaging 20.3°C (69°F). Rain falls on about 10 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 22°C (71°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 10.7h of sunshine at the start of September, decreasing to 8.4h by the end.

The warmest days tend to fall around the 2th, averaging 21.6°C (71°F).

Compared to August, this month is about 3°C cooler with 1 fewer rainy days. Temperatures begin dropping heading into October.

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Monthly September Averages

Temperature
20°C / 16°C
Feels Like
20°C / 14°C
Rain
10 days · 83 mm
Sunshine
9.7h / day
Humidity
77% — Humid
Wind
21 km/h
Wind Direction
S (177°)
Gusts
36 km/h
Daylight
12.5 h
Cloud Cover
50%
Clear Sky Days
6.3
UV Index
5.1 — High
Dew Point
14°C — Comfortable
Moon Phase
Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

28°C 25°C 22°C 19°C 16°C 13°C 10°C 151015202530
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 8 mm 151015202530
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202530
Sunshine

Daily Wind Speed

0 6 12 18 24 30 151015202530
Wind Speed
Sun Position
Sunrise 07:07
Daylight 12.5h
Sunset 19:40

What to Expect

Daytime temperatures around 20°C (69°F) are ideal for full-day outdoor exploration.

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

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

Compare Months

January
Poor
Temp
0°C / -4°C
Feels Like
-5°C / -10°C
Rain
17days (88 mm) Wet
Sun
4h Fair
Humidity
78% Humid
UV
1.9 Low
Snow Days
21days
View Details
February
Poor
Temp
0°C / -4°C
Feels Like
-5°C / -10°C
Rain
13days (84 mm) Wet
Sun
5.9h Fair
Humidity
77% Humid
UV
3.1 Moderate
Snow Days
17days
View Details
March
Poor
Temp
4°C / -1°C
Feels Like
-1°C / -7°C
Rain
13days (91 mm) Wet
Sun
7.4h Good
Humidity
76% Humid
UV
4 Moderate
Snow Days
11days
View Details
April
Poor
Temp
8°C / 2°C
Feels Like
5°C / -3°C
Rain
14days (100 mm) Wet
Sun
8.9h Good
Humidity
74% Muggy
UV
5.1 High
Snow Days
6days
View Details
May
Fair
Temp
14°C / 8°C
Feels Like
12°C / 5°C
Rain
11days (73 mm) Wet
Sun
10.6h Excellent
Humidity
77% Humid
UV
6.1 High
Snow Days
1days
View Details
June best
Excellent
Temp
20°C / 14°C
Feels Like
20°C / 12°C
Rain
11days (84 mm) Wet
Sun
12.1h Excellent
Humidity
77% Humid
UV
6.6 High
View Details
July best
Excellent
Temp
23°C / 18°C
Feels Like
25°C / 18°C
Rain
11days (83 mm) Wet
Sun
12.2h Excellent
Humidity
80% Humid
UV
6.8 High
View Details
August best
Excellent
Temp
23°C / 19°C
Feels Like
25°C / 19°C
Rain
11days (101 mm) Wet
Sun
11.3h Excellent
Humidity
79% Humid
UV
6 High
View Details
September best
Excellent
Temp
20°C / 16°C
Feels Like
20°C / 14°C
Rain
10days (83 mm) Wet
Sun
9.7h Good
Humidity
77% Humid
UV
5.1 High
View Details
October
Fair
Temp
14°C / 10°C
Feels Like
12°C / 6°C
Rain
13days (107 mm) Wet
Sun
7.1h Good
Humidity
74% Muggy
UV
3.3 Moderate
View Details
November
Poor
Temp
7°C / 4°C
Feels Like
3°C / -2°C
Rain
16days (92 mm) Wet
Sun
5.3h Fair
Humidity
74% Muggy
UV
2 Low
Snow Days
9days
View Details
December
Poor
Temp
3°C / -1°C
Feels Like
-3°C / -7°C
Rain
17days (101 mm) Wet
Sun
3.5h Poor
Humidity
77% Humid
UV
1.5 Low
Snow Days
18days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 0°C / -4°C -5°C / -10°C 17days (88 mm) Wet 4h Fair 78% Humid 1.9 Low Poor View Details
February 0°C / -4°C -5°C / -10°C 13days (84 mm) Wet 5.9h Fair 77% Humid 3.1 Moderate Poor View Details
March 4°C / -1°C -1°C / -7°C 13days (91 mm) Wet 7.4h Good 76% Humid 4 Moderate Poor View Details
April 8°C / 2°C 5°C / -3°C 14days (100 mm) Wet 8.9h Good 74% Muggy 5.1 High Poor View Details
May 14°C / 8°C 12°C / 5°C 11days (73 mm) Wet 10.6h Excellent 77% Humid 6.1 High Fair View Details
June best 20°C / 14°C 20°C / 12°C 11days (84 mm) Wet 12.1h Excellent 77% Humid 6.6 High Excellent View Details
July best 23°C / 18°C 25°C / 18°C 11days (83 mm) Wet 12.2h Excellent 80% Humid 6.8 High Excellent View Details
August best 23°C / 19°C 25°C / 19°C 11days (101 mm) Wet 11.3h Excellent 79% Humid 6 High Excellent View Details
September best 20°C / 16°C 20°C / 14°C 10days (83 mm) Wet 9.7h Good 77% Humid 5.1 High Excellent View Details
October 14°C / 10°C 12°C / 6°C 13days (107 mm) Wet 7.1h Good 74% Muggy 3.3 Moderate Fair View Details
November 7°C / 4°C 3°C / -2°C 16days (92 mm) Wet 5.3h Fair 74% Muggy 2 Low Poor View Details
December 3°C / -1°C -3°C / -7°C 17days (101 mm) Wet 3.5h Poor 77% 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

UmbrellaWaterproof jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

September is typically excellent for visiting Goderich, with average highs of 20°C (69°F) and around 10 rainy days. Goderich, Canada in September has warm conditions, with highs averaging 20.3°C (69°F). Rain falls on about 10 days this
Goderich typically sees around 10 rainy days in September with 83 mm (3.3 in) of total rainfall. An umbrella should suffice.
Evenings in Goderich during September are mild at 16°C (60°F). A light cardigan is usually enough.
With highs of 20°C (69°F) and lows of 16°C (60°F) in September, we recommend: Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, September offers some of the best weather conditions in Goderich with comfortable temperatures and lower chances of rain.
The average UV index in Goderich during September is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Goderich gets approximately 13 hours of daylight per day in September, with around 10 hours of sunshine.
Snow is uncommon in Goderich during September based on 10-year climate averages.

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