San Ramon Weather Year-Round — Best Time to Visit
San Ramon, United States has mild weather year-round. The best time to visit is July (score: 97/100). Annual average high: 20.6°C, total rainfall: 500mm.
When is the best time to visit San Ramon?
97
July is the best month to visit San Ramon with a travel score of 97/100 (Excellent).
Expect highs of 27.1°C, 0 rain days, and 13.5 hours of daily sunshine.
View July weather details →Travel Score by Month
62
Jan
67
Feb
73
Mar
80
Apr
88
May
95
Jun
97
Jul
97
Aug
97
Sep
91
Oct
75
Nov
62
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in San Ramon each month?
20.6°C
Avg High
9.7°C
Avg Low
500mm
Annual Rain
How much rain does San Ramon get?
San Ramon receives 500mm of rain annually. The wettest month is typically January with 99mm, while July is the driest.
What is the weather like each month in San Ramon?
January
62
14°C
Low: 5°C
9 rain days
Good
February
67
15°C
Low: 6°C
8 rain days
Good
March
73
17°C
Low: 7°C
8 rain days
Good
April
80
19°C
Low: 8°C
5 rain days
Excellent
May
88
22°C
Low: 10°C
3 rain days
Excellent
June
95
25°C
Low: 12°C
1 rain days
Excellent
July
Best time to visit97
27°C
Low: 14°C
0 rain days
Excellent
August
97
27°C
Low: 14°C
0 rain days
Excellent
September
97
27°C
Low: 14°C
1 rain days
Excellent
October
91
23°C
Low: 12°C
3 rain days
Excellent
November
75
17°C
Low: 8°C
6 rain days
Good
December
62
14°C
Low: 6°C
9 rain days
Good
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Data based on 1994–2024 averages · Last updated: 2024-12-31