Annual mean 26°C · wettest around February · prevailing wind N
Warmest
32.3 °C
Coldest
26.7 °C
Wettest
100%
Windiest
4.0 m/s
Prevailing
N
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
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 Ramón over the whole year is 26°C. September is the hottest month, with highs of about 32°C; July is the coldest, with lows of about 18°C. The rainy (wet) season in San Ramón runs from September to April, peaking in February with a 79% chance of rain on a given day. The dry season is May to August; July is the driest month, at 47%. Winds in San Ramón are highest in September, averaging 2.2 m/s (8 km/h), and lightest in April, at 1.5 m/s (5 km/h). The prevailing wind is from the N. The clearest skies in San Ramón come in July, when the sky is typically 20% covered; January is the cloudiest month, at 72%.
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
29°C
23°C
33°C
78%
72%
1.9 m/s
4
39
0
February
29°C
24°C
32°C
79%
62%
1.7 m/s
5
41
1
March
29°C
23°C
33°C
74%
72%
1.7 m/s
5
35
1
April
29°C
24°C
33°C
70%
60%
1.5 m/s
9
31
4
May
28°C
21°C
31°C
54%
54%
1.6 m/s
23
35
13
June
28°C
20°C
29°C
54%
45%
1.7 m/s
26
40
18
July
30°C
18°C
30°C
47%
20%
1.5 m/s
21
49
14
August
31°C
20°C
31°C
62%
34%
2.0 m/s
20
39
13
September
32°C
23°C
33°C
72%
37%
2.2 m/s
11
29
5
October
32°C
24°C
34°C
68%
51%
1.9 m/s
7
26
2
November
30°C
24°C
33°C
68%
63%
2.0 m/s
6
30
2
December
29°C
25°C
33°C
69%
70%
1.9 m/s
5
39
0
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 28°C at their warmest in June, its coolest month, and 32°C in September, its warmest; the coolest hours of the day run from 18°C to 25°C through the year, and the average temperature over the year is 26°C around the clock. Rain is most likely around February 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 Ramón weather in winterJune to August
High 30°CLow 19°CRain 54%
Winter in San Ramón has typical daily highs of about 30°C and lows of about 19°C, with a 54% chance of rain on a given day.
San Ramón weather in springSeptember to November
High 31°CLow 24°CRain 69%
Spring in San Ramón has typical daily highs of about 31°C and lows of about 24°C, with a 69% chance of rain on a given day.
San Ramón weather in summerDecember to February
High 29°CLow 24°CRain 75%
Summer in San Ramón has typical daily highs of about 29°C and lows of about 24°C, with a 75% chance of rain on a given day.
San Ramón weather in autumnMarch to May
High 29°CLow 23°CRain 66%
Autumn in San Ramón has typical daily highs of about 29°C and lows of about 23°C, with a 66% chance of rain on a given day.
When is the rainy season in San Ramón?
The rainy (wet) season in San Ramón runs from September to April, peaking in February with a 79% chance of rain on a given day. The dry season is May to August; July is the driest month, at 47%.
What time of year is San Ramón windiest?
Winds in San Ramón are highest in September, averaging 2.2 m/s (8 km/h), and lightest in April, at 1.5 m/s (5 km/h). The prevailing wind is from the N.
What is the average temperature in San Ramón year round?
The average temperature in San Ramón over the whole year is 26°C. September is the hottest month, with highs of about 32°C; July is the coldest, with lows of about 18°C.