Hamilton Weather Year-Round — Best Time to Visit
Hamilton, United States has mild weather year-round. The best time to visit is September (score: 88/100). Annual average high: 17.4°C, total rainfall: 1064mm.
When is the best time to visit Hamilton?
88
September is the best month to visit Hamilton with a travel score of 88/100 (Excellent).
Expect highs of 25.4°C, 8 rain days, and 9.8 hours of daily sunshine.
View September weather details →Travel Score by Month
45
Jan
52
Feb
60
Mar
70
Apr
78
May
82
Jun
83
Jul
85
Aug
88
Sep
74
Oct
61
Nov
48
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Hamilton each month?
17.4°C
Avg High
8.2°C
Avg Low
1064mm
Annual Rain
How much rain does Hamilton get?
Hamilton receives 1064mm of rain annually. The wettest month is typically May with 117mm, while September is the driest.
What is the weather like each month in Hamilton?
January
45
4°C
Low: -5°C
10 rain days
Mixed
February
52
6°C
Low: -3°C
9 rain days
Mixed
March
60
12°C
Low: 1°C
10 rain days
Good
April
70
18°C
Low: 7°C
12 rain days
Good
May
78
23°C
Low: 13°C
12 rain days
Good
June
82
28°C
Low: 18°C
12 rain days
Excellent
July
83
29°C
Low: 20°C
11 rain days
Excellent
August
85
29°C
Low: 20°C
10 rain days
Excellent
September
Best time to visit88
25°C
Low: 16°C
8 rain days
Excellent
October
74
19°C
Low: 10°C
8 rain days
Good
November
61
12°C
Low: 3°C
8 rain days
Good
December
48
6°C
Low: -1°C
10 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31