Annual mean 22°C · wettest around May · prevailing wind SE
Warmest
32.3 °C
Coldest
14.1 °C
Wettest
45%
Windiest
5.2 m/s
Prevailing
SE
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 Pasadena over the whole year is 22°C. August is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 10°C. Pasadena has no sharply defined rainy season: the chance of rain on a given day runs from 34% in February, the driest month, to 40% in May, the wettest. Winds in Pasadena are highest in April, averaging 4.3 m/s (15 km/h), and lightest in July, at 2.8 m/s (10 km/h). The prevailing wind is from the SE. The clearest skies in Pasadena come in August, when the sky is typically 36% covered; February is the cloudiest month, at 63%.
Month by month Pasadena 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
15°C
10°C
12°C
39%
54%
3.5 m/s
37
4
61
February
17°C
13°C
15°C
34%
63%
3.7 m/s
53
12
57
March
21°C
16°C
20°C
35%
59%
4.0 m/s
67
23
55
April
24°C
19°C
23°C
35%
57%
4.3 m/s
67
38
39
May
28°C
23°C
29°C
40%
56%
4.0 m/s
31
59
9
June
31°C
26°C
34°C
39%
42%
3.4 m/s
5
35
1
July
31°C
26°C
35°C
39%
36%
2.8 m/s
2
18
0
August
32°C
26°C
36°C
39%
36%
2.9 m/s
3
17
0
September
30°C
24°C
33°C
39%
38%
2.9 m/s
12
40
3
October
26°C
20°C
27°C
38%
38%
3.2 m/s
38
51
23
November
20°C
15°C
20°C
38%
51%
3.2 m/s
57
26
52
December
17°C
12°C
16°C
37%
57%
3.3 m/s
49
12
60
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 Pasadena weather by season
Year round, Pasadena has days of about 15°C at their warmest in January, its coolest month, and 32°C in August, its warmest; the coolest hours of the day run from 10°C to 26°C through the year, and the average temperature over the year is 22°C around the clock. Rain is most likely around May and least likely around February. 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.
Pasadena weather in winterDecember to February
High 16°CLow 12°CRain 36%
Winter in Pasadena has typical daily highs of about 16°C and lows of about 12°C, with a 36% chance of rain on a given day.
Pasadena weather in springMarch to May
High 24°CLow 19°CRain 37%
Spring in Pasadena has typical daily highs of about 24°C and lows of about 19°C, with a 37% chance of rain on a given day.
Pasadena weather in summerJune to August
High 31°CLow 26°CRain 39%
Summer in Pasadena has typical daily highs of about 31°C and lows of about 26°C, with a 39% chance of rain on a given day.
Pasadena weather in autumnSeptember to November
High 25°CLow 20°CRain 38%
Autumn in Pasadena has typical daily highs of about 25°C and lows of about 20°C, with a 38% chance of rain on a given day.
When is the rainy season in Pasadena?
Pasadena has no sharply defined rainy season: the chance of rain on a given day runs from 34% in February, the driest month, to 40% in May, the wettest.
What time of year is Pasadena windiest?
Winds in Pasadena are highest in April, averaging 4.3 m/s (15 km/h), and lightest in July, at 2.8 m/s (10 km/h). The prevailing wind is from the SE.
What is the average temperature in Pasadena year round?
The average temperature in Pasadena over the whole year is 22°C. August is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 10°C.