Santa Rosa Weather Year-Round — Best Time to Visit
Santa Rosa, United States has mild weather year-round. The best time to visit is July (score: 100/100). Annual average high: 21.9°C, total rainfall: 736mm.
When is the best time to visit Santa Rosa?
100
July is the best month to visit Santa Rosa with a travel score of 100/100 (Excellent).
Expect highs of 29.6°C, 0 rain days, and 13.7 hours of daily sunshine.
View July weather details →Travel Score by Month
59
Jan
66
Feb
71
Mar
82
Apr
90
May
99
Jun
100
Jul
99
Aug
99
Sep
91
Oct
73
Nov
59
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Santa Rosa each month?
21.9°C
Avg High
9.3°C
Avg Low
736mm
Annual Rain
How much rain does Santa Rosa get?
Santa Rosa receives 736mm of rain annually. The wettest month is typically December with 152mm, while July is the driest.
What is the weather like each month in Santa Rosa?
January
59
15°C
Low: 5°C
10 rain days
Mixed
February
66
16°C
Low: 5°C
9 rain days
Good
March
71
17°C
Low: 6°C
9 rain days
Good
April
82
20°C
Low: 8°C
5 rain days
Excellent
May
90
24°C
Low: 10°C
3 rain days
Excellent
June
99
28°C
Low: 13°C
1 rain days
Excellent
July
Best time to visit100
30°C
Low: 14°C
0 rain days
Excellent
August
99
30°C
Low: 14°C
0 rain days
Excellent
September
99
28°C
Low: 14°C
1 rain days
Excellent
October
91
24°C
Low: 11°C
3 rain days
Excellent
November
73
18°C
Low: 7°C
6 rain days
Good
December
59
14°C
Low: 5°C
10 rain days
Mixed
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What cities are near Santa Rosa?
Data based on 1994–2024 averages · Last updated: 2024-12-31