Annual mean 18°C · wettest around January · prevailing wind SW
Warmest
28.6 °C
Coldest
15.7 °C
Wettest
16%
Windiest
3.8 m/s
Prevailing
SW
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 South Pasadena over the whole year is 18°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 9°C. South Pasadena has no sharply defined rainy season: the chance of rain on a given day runs from 2% in July, the driest month, to 14% in January, the wettest. Winds in South Pasadena are highest in April, averaging 2.8 m/s (10 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in South Pasadena come in August, when the sky is typically 19% covered; May is the cloudiest month, at 42%.
Month by month South 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
16°C
9°C
14°C
14%
27%
2.0 m/s
48
1
82
February
17°C
10°C
14°C
14%
28%
2.3 m/s
49
4
79
March
17°C
11°C
15°C
14%
34%
2.6 m/s
53
4
80
April
20°C
13°C
18°C
8%
30%
2.8 m/s
71
11
78
May
21°C
15°C
19°C
7%
42%
2.8 m/s
80
13
77
June
24°C
18°C
23°C
4%
35%
2.8 m/s
78
35
53
July
27°C
20°C
27°C
2%
21%
2.7 m/s
56
59
26
August
28°C
20°C
28°C
5%
19%
2.6 m/s
49
66
18
September
27°C
19°C
26°C
4%
24%
2.4 m/s
61
54
30
October
24°C
16°C
23°C
7%
23%
2.2 m/s
76
37
51
November
21°C
12°C
18°C
9%
19%
1.9 m/s
77
11
77
December
17°C
10°C
14°C
13%
25%
1.9 m/s
55
1
85
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 South Pasadena weather by season
Year round, South Pasadena has days of about 16°C at their warmest in January, its coolest month, and 28°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.
South Pasadena weather in winterDecember to February
High 17°CLow 9°CRain 14%
Winter in South Pasadena has typical daily highs of about 17°C and lows of about 9°C, with a 14% chance of rain on a given day.
South Pasadena weather in springMarch to May
High 19°CLow 13°CRain 10%
Spring in South Pasadena has typical daily highs of about 19°C and lows of about 13°C, with a 10% chance of rain on a given day.
South Pasadena weather in summerJune to August
High 26°CLow 19°CRain 4%
Summer in South Pasadena has typical daily highs of about 26°C and lows of about 19°C, with a 4% chance of rain on a given day.
South Pasadena weather in autumnSeptember to November
High 24°CLow 15°CRain 7%
Autumn in South Pasadena has typical daily highs of about 24°C and lows of about 15°C, with a 7% chance of rain on a given day.
When is the rainy season in South Pasadena?
South Pasadena has no sharply defined rainy season: the chance of rain on a given day runs from 2% in July, the driest month, to 14% in January, the wettest.
What time of year is South Pasadena windiest?
Winds in South Pasadena are highest in April, averaging 2.8 m/s (10 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in South Pasadena year round?
The average temperature in South Pasadena over the whole year is 18°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 9°C.