Waterloo Weather Year-Round — Best Time to Visit
Waterloo, Canada has cool weather year-round. The best time to visit is August (score: 84/100). Annual average high: 12.2°C, total rainfall: 888mm.
When is the best time to visit Waterloo?
84
August is the best month to visit Waterloo with a travel score of 84/100 (Excellent).
Expect highs of 24.6°C, 10 rain days, and 11.1 hours of daily sunshine.
View August weather details →Travel Score by Month
33
Jan
40
Feb
50
Mar
61
Apr
73
May
80
Jun
83
Jul
84
Aug
78
Sep
60
Oct
47
Nov
35
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Waterloo each month?
12.2°C
Avg High
3.4°C
Avg Low
888mm
Annual Rain
How much rain does Waterloo get?
Waterloo receives 888mm of rain annually. The wettest month is typically June with 95mm, while February is the driest.
What is the weather like each month in Waterloo?
January
33
-2°C
Low: -10°C
11 rain days
Poor
February
40
-1°C
Low: -10°C
9 rain days
Mixed
March
50
4°C
Low: -5°C
10 rain days
Mixed
April
61
11°C
Low: 1°C
11 rain days
Good
May
73
18°C
Low: 8°C
11 rain days
Good
June
80
24°C
Low: 14°C
12 rain days
Good
July
83
26°C
Low: 16°C
11 rain days
Excellent
August
Best time to visit84
25°C
Low: 16°C
10 rain days
Excellent
September
78
21°C
Low: 12°C
9 rain days
Good
October
60
14°C
Low: 6°C
11 rain days
Mixed
November
47
7°C
Low: 0°C
10 rain days
Mixed
December
35
1°C
Low: -5°C
11 rain days
Poor
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Data based on 1994–2024 averages · Last updated: 2024-12-31