Brentwood Weather Year-Round — Best Time to Visit
Brentwood, United States has mild weather year-round. The best time to visit is September (score: 81/100). Annual average high: 15.1°C, total rainfall: 1179mm.
When is the best time to visit Brentwood?
81
September is the best month to visit Brentwood with a travel score of 81/100 (Excellent).
Expect highs of 22.7°C, 9 rain days, and 9.5 hours of daily sunshine.
View September weather details →Travel Score by Month
47
Jan
51
Feb
57
Mar
64
Apr
73
May
81
Jun
81
Jul
81
Aug
81
Sep
70
Oct
61
Nov
49
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Brentwood each month?
15.1°C
Avg High
8.9°C
Avg Low
1179mm
Annual Rain
How much rain does Brentwood get?
Brentwood receives 1179mm of rain annually. The wettest month is typically December with 118mm, while November is the driest.
What is the weather like each month in Brentwood?
January
47
4°C
Low: -3°C
10 rain days
Mixed
February
51
4°C
Low: -2°C
9 rain days
Mixed
March
57
8°C
Low: 1°C
10 rain days
Mixed
April
64
13°C
Low: 6°C
11 rain days
Good
May
73
18°C
Low: 11°C
10 rain days
Good
June
81
24°C
Low: 17°C
9 rain days
Excellent
July
81
27°C
Low: 21°C
10 rain days
Excellent
August
81
26°C
Low: 21°C
10 rain days
Excellent
September
Best time to visit81
23°C
Low: 17°C
9 rain days
Excellent
October
70
17°C
Low: 12°C
9 rain days
Good
November
61
11°C
Low: 6°C
8 rain days
Good
December
49
7°C
Low: 1°C
10 rain days
Mixed
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What cities are near Brentwood?
Data based on 1994–2024 averages · Last updated: 2024-12-31