Annual mean 16°C · wettest around January · prevailing wind NW
Warmest
27.5 °C
Coldest
11.8 °C
Wettest
16%
Windiest
5.3 m/s
Prevailing
NW
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Brentwood over the whole year is 16°C. July is the hottest month, with highs of about 27°C; December is the coldest, with lows of about 7°C. Brentwood has no sharply defined rainy season: the chance of rain on a given day runs from 2% in July, the driest month, to 17% in January, the wettest. Winds in Brentwood are highest in July, averaging 5.0 m/s (18 km/h), and lightest in November, at 2.2 m/s (8 km/h). The prevailing wind is from the NW. The clearest skies in Brentwood come in July, when the sky is typically 8% covered; January is the cloudiest month, at 42%.
Month by month Brentwood climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
13°C
7°C
10°C
17%
42%
2.5 m/s
11
0
78
February
14°C
7°C
11°C
15%
28%
2.9 m/s
26
0
79
March
16°C
9°C
13°C
16%
36%
3.3 m/s
35
1
84
April
19°C
11°C
17°C
9%
23%
3.8 m/s
65
8
83
May
22°C
13°C
19°C
6%
19%
4.6 m/s
74
20
70
June
26°C
16°C
24°C
3%
9%
4.9 m/s
70
43
46
July
27°C
16°C
25°C
2%
8%
5.0 m/s
63
54
34
August
27°C
17°C
26°C
3%
10%
4.6 m/s
63
57
32
September
26°C
16°C
25°C
3%
12%
3.7 m/s
71
46
43
October
23°C
13°C
20°C
7%
13%
2.8 m/s
81
22
69
November
17°C
9°C
14°C
10%
26%
2.2 m/s
46
1
90
December
13°C
7°C
10°C
16%
39%
2.3 m/s
11
0
78
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Brentwood weather by season
Year round, Brentwood has days of about 13°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from 7°C to 17°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around January and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Brentwood weather in winterDecember to February
High 13°CLow 7°CRain 16%
Winter in Brentwood has typical daily highs of about 13°C and lows of about 7°C, with a 16% chance of rain on a given day.
Brentwood weather in springMarch to May
High 19°CLow 11°CRain 10%
Spring in Brentwood has typical daily highs of about 19°C and lows of about 11°C, with a 10% chance of rain on a given day.
Brentwood weather in summerJune to August
High 26°CLow 16°CRain 3%
Summer in Brentwood has typical daily highs of about 26°C and lows of about 16°C, with a 3% chance of rain on a given day.
Brentwood weather in autumnSeptember to November
High 22°CLow 12°CRain 7%
Autumn in Brentwood has typical daily highs of about 22°C and lows of about 12°C, with a 7% chance of rain on a given day.
When is the rainy season in Brentwood?
Brentwood has no sharply defined rainy season: the chance of rain on a given day runs from 2% in July, the driest month, to 17% in January, the wettest.
What time of year is Brentwood windiest?
Winds in Brentwood are highest in July, averaging 5.0 m/s (18 km/h), and lightest in November, at 2.2 m/s (8 km/h). The prevailing wind is from the NW.
What is the average temperature in Brentwood year round?
The average temperature in Brentwood over the whole year is 16°C. July is the hottest month, with highs of about 27°C; December is the coldest, with lows of about 7°C.