Annual mean 14°C · wettest around January · prevailing wind SW
Warmest
20.6 °C
Coldest
11.3 °C
Wettest
98%
Windiest
4.5 m/s
Prevailing
SW
3.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 14°C. September is the hottest month, with highs of about 20°C; February is the coldest, with lows of about 9°C. The rainy (wet) season in San Rafael runs from September to May, peaking in January with a 94% chance of rain on a given day. The dry season is June to August; July is the driest month, at 41%. Winds in San Rafael are highest in June, averaging 3.6 m/s (13 km/h), and lightest in October, at 2.3 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in San Rafael come in June, when the sky is typically 20% covered; January is the cloudiest month, at 49%.
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
12°C
10°C
11°C
94%
49%
2.6 m/s
10
0
78
February
13°C
9°C
10°C
94%
33%
2.8 m/s
13
0
74
March
14°C
10°C
12°C
94%
43%
2.8 m/s
16
0
78
April
15°C
11°C
13°C
93%
30%
3.0 m/s
37
2
79
May
17°C
12°C
16°C
92%
29%
3.3 m/s
47
6
79
June
18°C
14°C
17°C
58%
20%
3.6 m/s
49
12
72
July
18°C
14°C
19°C
41%
24%
3.5 m/s
60
19
65
August
19°C
15°C
20°C
43%
27%
3.1 m/s
71
21
63
September
20°C
15°C
20°C
69%
26%
2.6 m/s
70
18
67
October
19°C
14°C
18°C
86%
27%
2.3 m/s
66
13
72
November
15°C
11°C
13°C
93%
33%
2.3 m/s
27
1
82
December
12°C
9°C
10°C
94%
46%
2.5 m/s
12
0
75
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 12°C at their warmest in January, its coolest month, and 20°C in September, its warmest; the coolest hours of the day run from 9°C to 15°C through the year, and the average temperature over the year is 14°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.
San Rafael weather in winterDecember to February
High 12°CLow 9°CRain 94%
Winter in San Rafael has typical daily highs of about 12°C and lows of about 9°C, with a 94% chance of rain on a given day.
San Rafael weather in springMarch to May
High 15°CLow 11°CRain 93%
Spring in San Rafael has typical daily highs of about 15°C and lows of about 11°C, with a 93% chance of rain on a given day.
San Rafael weather in summerJune to August
High 19°CLow 14°CRain 47%
Summer in San Rafael has typical daily highs of about 19°C and lows of about 14°C, with a 47% chance of rain on a given day.
San Rafael weather in autumnSeptember to November
High 18°CLow 13°CRain 83%
Autumn in San Rafael has typical daily highs of about 18°C and lows of about 13°C, with a 83% chance of rain on a given day.
When is the rainy season in San Rafael?
The rainy (wet) season in San Rafael runs from September to May, peaking in January with a 94% chance of rain on a given day. The dry season is June to August; July is the driest month, at 41%.
What time of year is San Rafael windiest?
Winds in San Rafael are highest in June, averaging 3.6 m/s (13 km/h), and lightest in October, at 2.3 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in San Rafael year round?
The average temperature in San Rafael over the whole year is 14°C. September is the hottest month, with highs of about 20°C; February is the coldest, with lows of about 9°C.