Dartmouth Weather Year-Round — Best Time to Visit
Dartmouth, Canada has cool weather year-round. The best time to visit is August (score: 79/100). Annual average high: 11.3°C, total rainfall: 1302mm.
When is the best time to visit Dartmouth?
79
August is the best month to visit Dartmouth with a travel score of 79/100 (Good).
Expect highs of 22.7°C, 10 rain days, and 9.7 hours of daily sunshine.
View August weather details →Travel Score by Month
35
Jan
40
Feb
46
Mar
54
Apr
64
May
71
Jun
78
Jul
79
Aug
73
Sep
62
Oct
49
Nov
38
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Dartmouth each month?
11.3°C
Avg High
4.5°C
Avg Low
1302mm
Annual Rain
How much rain does Dartmouth get?
Dartmouth receives 1302mm of rain annually. The wettest month is typically December with 139mm, while May is the driest.
What is the weather like each month in Dartmouth?
January
35
0°C
Low: -7°C
12 rain days
Poor
February
40
0°C
Low: -7°C
10 rain days
Mixed
March
46
4°C
Low: -4°C
11 rain days
Mixed
April
54
9°C
Low: 1°C
12 rain days
Mixed
May
64
14°C
Low: 6°C
11 rain days
Good
June
71
19°C
Low: 11°C
11 rain days
Good
July
78
23°C
Low: 16°C
10 rain days
Good
August
Best time to visit79
23°C
Low: 16°C
10 rain days
Good
September
73
20°C
Low: 13°C
9 rain days
Good
October
62
14°C
Low: 8°C
10 rain days
Good
November
49
8°C
Low: 3°C
11 rain days
Mixed
December
38
3°C
Low: -3°C
13 rain days
Poor
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Data based on 1994–2024 averages · Last updated: 2024-12-31