Annual mean 18°C · wettest around March · prevailing wind W
Warmest
32.0 °C
Coldest
16.4 °C
Wettest
38%
Windiest
3.8 m/s
Prevailing
W
3.1 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 Perris over the whole year is 18°C. August is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 7°C. The rainy (wet) season in Perris runs from October to April, peaking in March with a 34% chance of rain on a given day. The dry season is May to September; July is the driest month, at 15%. Winds in Perris are highest in May, averaging 2.7 m/s (10 km/h), and lightest in December, at 1.8 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Perris come in August, when the sky is typically 19% covered; May is the cloudiest month, at 39%.
Month by month Perris 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
7°C
14°C
34%
28%
2.0 m/s
46
1
83
February
18°C
8°C
14°C
31%
29%
2.2 m/s
50
4
78
March
18°C
9°C
15°C
34%
37%
2.3 m/s
52
5
79
April
22°C
11°C
19°C
25%
32%
2.5 m/s
71
16
72
May
23°C
14°C
20°C
21%
39%
2.7 m/s
77
21
67
June
27°C
17°C
25°C
15%
29%
2.7 m/s
62
45
38
July
31°C
19°C
29°C
15%
20%
2.6 m/s
34
59
14
August
32°C
19°C
30°C
18%
19%
2.4 m/s
31
60
11
September
30°C
18°C
28°C
19%
24%
2.2 m/s
49
52
23
October
27°C
14°C
24°C
25%
22%
2.1 m/s
68
40
45
November
22°C
10°C
19°C
26%
20%
1.9 m/s
74
15
71
December
18°C
8°C
15°C
33%
26%
1.8 m/s
55
1
83
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 Perris weather by season
Year round, Perris has days of about 17°C at their warmest in January, its coolest month, and 32°C in August, its warmest; the coolest hours of the day run from 7°C to 19°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around March 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.
Perris weather in winterDecember to February
High 18°CLow 8°CRain 32%
Winter in Perris has typical daily highs of about 18°C and lows of about 8°C, with a 32% chance of rain on a given day.
Perris weather in springMarch to May
High 21°CLow 11°CRain 26%
Spring in Perris has typical daily highs of about 21°C and lows of about 11°C, with a 26% chance of rain on a given day.
Perris weather in summerJune to August
High 30°CLow 18°CRain 16%
Summer in Perris has typical daily highs of about 30°C and lows of about 18°C, with a 16% chance of rain on a given day.
Perris weather in autumnSeptember to November
High 26°CLow 14°CRain 23%
Autumn in Perris has typical daily highs of about 26°C and lows of about 14°C, with a 23% chance of rain on a given day.
When is the rainy season in Perris?
The rainy (wet) season in Perris runs from October to April, peaking in March with a 34% chance of rain on a given day. The dry season is May to September; July is the driest month, at 15%.
What time of year is Perris windiest?
Winds in Perris are highest in May, averaging 2.7 m/s (10 km/h), and lightest in December, at 1.8 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Perris year round?
The average temperature in Perris over the whole year is 18°C. August is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 7°C.