Vacaville Weather Year-Round — Best Time to Visit
Vacaville, United States has warm weather year-round. The best time to visit is August (score: 99/100). Annual average high: 22.9°C, total rainfall: 553mm.
When is the best time to visit Vacaville?
99
August is the best month to visit Vacaville with a travel score of 99/100 (Excellent).
Expect highs of 31.8°C, 0 rain days, and 12.9 hours of daily sunshine.
View August weather details →Travel Score by Month
62
Jan
69
Feb
76
Mar
86
Apr
93
May
98
Jun
99
Jul
99
Aug
99
Sep
95
Oct
77
Nov
63
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Vacaville each month?
22.9°C
Avg High
10.6°C
Avg Low
553mm
Annual Rain
How much rain does Vacaville get?
Vacaville receives 553mm of rain annually. The wettest month is typically January with 116mm, while July is the driest.
What is the weather like each month in Vacaville?
January
62
14°C
Low: 6°C
9 rain days
Good
February
69
16°C
Low: 6°C
8 rain days
Good
March
76
18°C
Low: 7°C
8 rain days
Good
April
86
21°C
Low: 9°C
4 rain days
Excellent
May
93
26°C
Low: 12°C
3 rain days
Excellent
June
98
30°C
Low: 14°C
1 rain days
Excellent
July
99
32°C
Low: 15°C
0 rain days
Excellent
August
Best time to visit99
32°C
Low: 15°C
0 rain days
Excellent
September
99
30°C
Low: 15°C
1 rain days
Excellent
October
95
25°C
Low: 13°C
3 rain days
Excellent
November
77
18°C
Low: 8°C
6 rain days
Good
December
63
14°C
Low: 6°C
9 rain days
Good
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What cities are near Vacaville?
Data based on 1994–2024 averages · Last updated: 2024-12-31