Nepean Weather Year-Round — Best Time to Visit
Nepean, Canada has cool weather year-round. The best time to visit is August (score: 83/100). Annual average high: 11.6°C, total rainfall: 974mm.
When is the best time to visit Nepean?
83
August is the best month to visit Nepean with a travel score of 83/100 (Excellent).
Expect highs of 24.8°C, 10 rain days, and 11 hours of daily sunshine.
View August weather details →Travel Score by Month
38
Jan
42
Feb
49
Mar
61
Apr
75
May
80
Jun
82
Jul
83
Aug
77
Sep
59
Oct
47
Nov
34
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Nepean each month?
11.6°C
Avg High
2.5°C
Avg Low
974mm
Annual Rain
How much rain does Nepean get?
Nepean receives 974mm of rain annually. The wettest month is typically June with 99mm, while February is the driest.
What is the weather like each month in Nepean?
January
38
-5°C
Low: -14°C
10 rain days
Poor
February
42
-3°C
Low: -13°C
9 rain days
Mixed
March
49
3°C
Low: -7°C
10 rain days
Mixed
April
61
11°C
Low: 1°C
11 rain days
Good
May
75
19°C
Low: 8°C
10 rain days
Good
June
80
24°C
Low: 14°C
11 rain days
Excellent
July
82
26°C
Low: 17°C
12 rain days
Excellent
August
Best time to visit83
25°C
Low: 16°C
10 rain days
Excellent
September
77
21°C
Low: 12°C
9 rain days
Good
October
59
13°C
Low: 6°C
11 rain days
Mixed
November
47
6°C
Low: -1°C
10 rain days
Mixed
December
34
-1°C
Low: -8°C
11 rain days
Poor
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Data based on 1994–2024 averages · Last updated: 2024-12-31