Annual mean 18°C · wettest around January · prevailing wind SW
Warmest
30.6 °C
Coldest
16.7 °C
Wettest
20%
Windiest
3.7 m/s
Prevailing
SW
2.8 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 Brea over the whole year is 18°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 9°C. The rainy (wet) season in Brea runs from October to March, peaking in January with a 18% chance of rain on a given day. The dry season is April to September; July is the driest month, at 2%. Winds in Brea are highest in May, averaging 2.5 m/s (9 km/h), and lightest in December, at 1.4 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in Brea come in August, when the sky is typically 20% covered; May is the cloudiest month, at 48%.
Month by month Brea 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
17°C
9°C
15°C
18%
32%
1.6 m/s
54
1
85
February
18°C
10°C
15°C
17%
32%
1.9 m/s
55
5
81
March
19°C
11°C
16°C
16%
40%
2.2 m/s
60
5
82
April
22°C
13°C
19°C
9%
36%
2.4 m/s
76
14
76
May
22°C
15°C
20°C
8%
48%
2.5 m/s
83
15
74
June
26°C
18°C
24°C
4%
38%
2.5 m/s
74
42
45
July
29°C
20°C
28°C
2%
22%
2.5 m/s
47
67
17
August
30°C
20°C
29°C
7%
20%
2.2 m/s
38
72
11
September
28°C
19°C
27°C
5%
28%
2.1 m/s
55
58
23
October
26°C
16°C
24°C
10%
26%
1.8 m/s
73
43
44
November
22°C
12°C
20°C
12%
23%
1.5 m/s
82
15
74
December
18°C
9°C
15°C
15%
29%
1.4 m/s
62
2
87
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 Brea weather by season
Year round, Brea has days of about 17°C at their warmest in January, its coolest month, and 30°C in August, its warmest; the coolest hours of the day run from 9°C to 20°C through the year, and the average temperature over the year is 18°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.
Brea weather in winterDecember to February
High 18°CLow 9°CRain 17%
Winter in Brea has typical daily highs of about 18°C and lows of about 9°C, with a 17% chance of rain on a given day.
Brea weather in springMarch to May
High 21°CLow 13°CRain 11%
Spring in Brea has typical daily highs of about 21°C and lows of about 13°C, with a 11% chance of rain on a given day.
Brea weather in summerJune to August
High 28°CLow 19°CRain 4%
Summer in Brea has typical daily highs of about 28°C and lows of about 19°C, with a 4% chance of rain on a given day.
Brea weather in autumnSeptember to November
High 26°CLow 15°CRain 9%
Autumn in Brea has typical daily highs of about 26°C and lows of about 15°C, with a 9% chance of rain on a given day.
When is the rainy season in Brea?
The rainy (wet) season in Brea runs from October to March, peaking in January with a 18% chance of rain on a given day. The dry season is April to September; July is the driest month, at 2%.
What time of year is Brea windiest?
Winds in Brea are highest in May, averaging 2.5 m/s (9 km/h), and lightest in December, at 1.4 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in Brea year round?
The average temperature in Brea over the whole year is 18°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 9°C.