Annual mean 16°C · wettest around February · prevailing wind E
Warmest
30.1 °C
Coldest
12.5 °C
Wettest
23%
Windiest
4.7 m/s
Prevailing
E
3.9 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 San Rafael over the whole year is 16°C. January is the hottest month, with highs of about 29°C; July is the coldest, with lows of about 3°C. San Rafael has no sharply defined rainy season: the chance of rain on a given day runs from 14% in September, the driest month, to 29% in February, the wettest. Winds in San Rafael are highest in December, averaging 3.2 m/s (12 km/h), and lightest in May, at 2.3 m/s (8 km/h). The prevailing wind is from the E. The clearest skies in San Rafael come in February, when the sky is typically 35% covered; May is the cloudiest month, at 48%.
Month by month San Rafael 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
29°C
20°C
27°C
29%
37%
3.1 m/s
52
59
22
February
28°C
18°C
26°C
29%
35%
2.9 m/s
54
55
27
March
25°C
15°C
23°C
27%
36%
2.7 m/s
69
38
46
April
21°C
11°C
18°C
25%
42%
2.5 m/s
69
10
73
May
17°C
7°C
13°C
23%
48%
2.3 m/s
42
1
77
June
14°C
4°C
10°C
17%
43%
2.6 m/s
20
0
69
July
14°C
3°C
9°C
15%
41%
2.7 m/s
17
0
64
August
16°C
5°C
11°C
16%
40%
3.0 m/s
29
1
73
September
19°C
8°C
14°C
14%
39%
3.1 m/s
48
3
78
October
21°C
12°C
17°C
25%
40%
3.1 m/s
62
10
71
November
26°C
16°C
22°C
25%
37%
3.1 m/s
76
31
53
December
28°C
18°C
25°C
24%
35%
3.2 m/s
62
51
33
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 San Rafael weather by season
Year round, San Rafael has days of about 14°C at their warmest in July, its coolest month, and 29°C in January, its warmest; the coolest hours of the day run from 3°C to 20°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around February and least likely around September. 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.
San Rafael weather in winterJune to August
High 15°CLow 4°CRain 16%
Winter in San Rafael has typical daily highs of about 15°C and lows of about 4°C, with a 16% chance of rain on a given day.
San Rafael weather in springSeptember to November
High 22°CLow 12°CRain 21%
Spring in San Rafael has typical daily highs of about 22°C and lows of about 12°C, with a 21% chance of rain on a given day.
San Rafael weather in summerDecember to February
High 29°CLow 19°CRain 27%
Summer in San Rafael has typical daily highs of about 29°C and lows of about 19°C, with a 27% chance of rain on a given day.
San Rafael weather in autumnMarch to May
High 21°CLow 11°CRain 25%
Autumn in San Rafael has typical daily highs of about 21°C and lows of about 11°C, with a 25% chance of rain on a given day.
When is the rainy season in San Rafael?
San Rafael has no sharply defined rainy season: the chance of rain on a given day runs from 14% in September, the driest month, to 29% in February, the wettest.
What time of year is San Rafael windiest?
Winds in San Rafael are highest in December, averaging 3.2 m/s (12 km/h), and lightest in May, at 2.3 m/s (8 km/h). The prevailing wind is from the E.
What is the average temperature in San Rafael year round?
The average temperature in San Rafael over the whole year is 16°C. January is the hottest month, with highs of about 29°C; July is the coldest, with lows of about 3°C.