Annual mean 28°C · wettest around August · prevailing wind E
Warmest
33.4 °C
Coldest
29.0 °C
Wettest
69%
Windiest
4.6 m/s
Prevailing
E
3.4 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 Jose over the whole year is 28°C. April is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 25°C. The rainy (wet) season in San Jose runs from May to November, peaking in August with a 67% chance of rain on a given day. The dry season is December to April; March is the driest month, at 25%. Winds in San Jose are highest in February, averaging 3.2 m/s (12 km/h), and lightest in June, at 2.0 m/s (7 km/h). The prevailing wind is from the E. The clearest skies in San Jose come in April, when the sky is typically 40% covered; July is the cloudiest month, at 80%.
Month by month San Jose 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
30°C
25°C
33°C
34%
55%
3.1 m/s
4
45
0
February
31°C
25°C
33°C
27%
47%
3.2 m/s
4
46
0
March
32°C
26°C
35°C
25%
40%
2.8 m/s
0
30
0
April
33°C
27°C
36°C
36%
40%
2.7 m/s
0
13
0
May
33°C
27°C
37°C
53%
54%
2.4 m/s
1
6
0
June
31°C
26°C
36°C
59%
70%
2.0 m/s
0
12
0
July
30°C
26°C
35°C
67%
80%
2.2 m/s
1
20
0
August
30°C
26°C
35°C
67%
76%
2.2 m/s
1
20
0
September
30°C
26°C
35°C
65%
74%
2.1 m/s
1
20
0
October
30°C
26°C
35°C
61%
67%
2.2 m/s
1
18
0
November
31°C
26°C
35°C
50%
56%
2.4 m/s
0
21
0
December
31°C
26°C
34°C
43%
59%
2.8 m/s
2
32
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 Jose weather by season
Year round, San Jose has days of about 30°C at their warmest in July, its coolest month, and 33°C in April, its warmest; the coolest hours of the day run from 25°C to 27°C through the year, and the average temperature over the year is 28°C around the clock. Rain is most likely around August and least likely around March. 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 Jose weather in winterDecember to February
High 31°CLow 26°CRain 35%
Winter in San Jose has typical daily highs of about 31°C and lows of about 26°C, with a 35% chance of rain on a given day.
San Jose weather in springMarch to May
High 32°CLow 27°CRain 38%
Spring in San Jose has typical daily highs of about 32°C and lows of about 27°C, with a 38% chance of rain on a given day.
San Jose weather in summerJune to August
High 30°CLow 26°CRain 64%
Summer in San Jose has typical daily highs of about 30°C and lows of about 26°C, with a 64% chance of rain on a given day.
San Jose weather in autumnSeptember to November
High 30°CLow 26°CRain 59%
Autumn in San Jose has typical daily highs of about 30°C and lows of about 26°C, with a 59% chance of rain on a given day.
When is the rainy season in San Jose?
The rainy (wet) season in San Jose runs from May to November, peaking in August with a 67% chance of rain on a given day. The dry season is December to April; March is the driest month, at 25%.
What time of year is San Jose windiest?
Winds in San Jose are highest in February, averaging 3.2 m/s (12 km/h), and lightest in June, at 2.0 m/s (7 km/h). The prevailing wind is from the E.
What is the average temperature in San Jose year round?
The average temperature in San Jose over the whole year is 28°C. April is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 25°C.