New Haven Weather Year-Round — Best Time to Visit
New Haven, United States has mild weather year-round. The best time to visit is August (score: 83/100). Annual average high: 15°C, total rainfall: 1161mm.
When is the best time to visit New Haven?
83
August is the best month to visit New Haven with a travel score of 83/100 (Excellent).
Expect highs of 26.5°C, 10 rain days, and 10.8 hours of daily sunshine.
View August weather details →Travel Score by Month
48
Jan
53
Feb
58
Mar
66
Apr
73
May
81
Jun
82
Jul
83
Aug
83
Sep
71
Oct
62
Nov
51
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in New Haven each month?
15°C
Avg High
7.9°C
Avg Low
1161mm
Annual Rain
How much rain does New Haven get?
New Haven receives 1161mm of rain annually. The wettest month is typically October with 110mm, while February is the driest.
What is the weather like each month in New Haven?
January
48
3°C
Low: -4°C
9 rain days
Mixed
February
53
4°C
Low: -3°C
8 rain days
Mixed
March
58
8°C
Low: 0°C
10 rain days
Mixed
April
66
13°C
Low: 5°C
10 rain days
Good
May
73
19°C
Low: 11°C
11 rain days
Good
June
81
24°C
Low: 16°C
11 rain days
Excellent
July
82
27°C
Low: 20°C
10 rain days
Excellent
August
Best time to visit83
27°C
Low: 19°C
10 rain days
Excellent
September
83
23°C
Low: 16°C
8 rain days
Excellent
October
71
17°C
Low: 10°C
9 rain days
Good
November
62
11°C
Low: 5°C
8 rain days
Good
December
51
6°C
Low: 0°C
10 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31