Annual mean 24°C · wettest around October · prevailing wind NE
Warmest
28.8 °C
Coldest
24.6 °C
Wettest
78%
Windiest
4.8 m/s
Prevailing
NE
3.3 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 Ramón over the whole year is 24°C. April is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 19°C. The rainy (wet) season in San Ramón runs from April to October, peaking in October with a 61% chance of rain on a given day. The dry season is November to March; February is the driest month, at 15%. Winds in San Ramón are highest in January, averaging 3.7 m/s (13 km/h), and lightest in September, at 1.5 m/s (5 km/h). The prevailing wind is from the NE. The clearest skies in San Ramón come in March, when the sky is typically 48% covered; June is the cloudiest month, at 70%.
Month by month San Ramón 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
25°C
19°C
24°C
24%
54%
3.7 m/s
65
35
42
February
26°C
19°C
25°C
15%
51%
3.4 m/s
63
40
36
March
27°C
20°C
27°C
22%
48%
3.1 m/s
57
48
25
April
28°C
21°C
29°C
40%
52%
2.4 m/s
40
59
11
May
28°C
22°C
30°C
46%
62%
1.8 m/s
29
58
4
June
27°C
21°C
29°C
55%
70%
1.9 m/s
44
54
10
July
27°C
21°C
28°C
39%
67%
2.9 m/s
56
49
17
August
27°C
21°C
29°C
47%
65%
2.1 m/s
43
56
9
September
27°C
21°C
30°C
60%
65%
1.5 m/s
34
59
5
October
26°C
21°C
29°C
61%
66%
1.7 m/s
44
54
11
November
26°C
20°C
26°C
37%
66%
2.7 m/s
60
40
28
December
25°C
20°C
24°C
22%
58%
3.5 m/s
63
32
43
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 Ramón weather by season
Year round, San Ramón has days of about 25°C at their warmest in December, its coolest month, and 28°C in April, its warmest; the coolest hours of the day run from 19°C to 22°C through the year, and the average temperature over the year is 24°C around the clock. Rain is most likely around October 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.
San Ramón weather in winterDecember to February
High 25°CLow 19°CRain 20%
Winter in San Ramón has typical daily highs of about 25°C and lows of about 19°C, with a 20% chance of rain on a given day.
San Ramón weather in springMarch to May
High 28°CLow 21°CRain 36%
Spring in San Ramón has typical daily highs of about 28°C and lows of about 21°C, with a 36% chance of rain on a given day.
San Ramón weather in summerJune to August
High 27°CLow 21°CRain 47%
Summer in San Ramón has typical daily highs of about 27°C and lows of about 21°C, with a 47% chance of rain on a given day.
San Ramón weather in autumnSeptember to November
High 26°CLow 20°CRain 53%
Autumn in San Ramón has typical daily highs of about 26°C and lows of about 20°C, with a 53% chance of rain on a given day.
When is the rainy season in San Ramón?
The rainy (wet) season in San Ramón runs from April to October, peaking in October with a 61% chance of rain on a given day. The dry season is November to March; February is the driest month, at 15%.
What time of year is San Ramón windiest?
Winds in San Ramón are highest in January, averaging 3.7 m/s (13 km/h), and lightest in September, at 1.5 m/s (5 km/h). The prevailing wind is from the NE.
What is the average temperature in San Ramón year round?
The average temperature in San Ramón over the whole year is 24°C. April is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 19°C.