San Jose (CA) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at San Jose

San Jose average temperature chart (Celsius) San Jose average temperature chart (Fahrenheit)
Average monthly temperatures in San Jose (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14 16.4 17.6 19.7 22.7 25.6 27.4 27.5 26.7 23.5 18 13.8
°F 57.2 61.5 63.6 67.5 72.8 78.1 81.3 81.5 80.1 74.2 64.3 56.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

San Jose monthly rainfall chart (mm) San Jose monthly rainfall chart (inches)
Average monthly rainfall in San Jose (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 81 61 58 31 7 2 1 2 6 21 53 62
inches 3.2 2.4 2.3 1.2 0.3 0.1 0 0.1 0.2 0.8 2.1 2.4
Rainy days 9 9 10 6 2 1 1 1 1 3 8 9

Average annual rainfall in San Jose: 300mm (118.1 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in San Jose

San Jose average daily sunshine chart
Average daily sunshine San Jose
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 7.9 9.5 11.3 11.9 12.1 12 11.1 10.5 9.2 6.6 5.5

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

San Jose average minimum / maximum temperatures (Celsius) San Jose average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in San Jose (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 4 5.8 6.6 7.4 9.6 11.7 12.7 13 12.2 9.6 6.6 4
Max °C 14.3 16.7 17.9 20.1 23 26 27.8 27.9 27.1 23.8 18.3 14
Min °F 39.1 42.4 43.8 45.2 49.3 53 54.8 55.3 53.9 49.3 43.8 39.2
Max °F 48.4 52.2 54 56.7 61.3 65.8 68.4 68.7 67.3 62.1 54.3 48.2

Sea temperature

The graph below shows the average sea temperature.

San Jose average sea temperature chart (Celsius) San Jose average sea temperature chart (Fahrenheit)
Average sea temperature around San Jose in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.4 12.3 12.2 12 12.1 12.7 13.7 14.6 14.9 14.6 13.8 12.9
°F 54.4 54.1 54 53.6 53.8 54.8 56.7 58.3 58.9 58.3 56.9 55.2

Wind speed

The graph below shows the average wind speed.

San Jose average winspeed by month (km/h) San Jose average winspeed by month (mph)
Average wind speed in San Jose (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 14 16 18 19 19 18 17 16 13 12 12
mph 8 9 10 11 12 12 11 11 10 8 8 8

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

San Jose relative humidity averages
Average relative humidity in San Jose
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80% 77% 73% 68% 66% 64% 65% 66% 66% 68% 76% 80%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

San Jose weather stats

San Jose weather statistics
Hottest month: August 27.5°C 81.5°F
Driest month: July 1mm 0ins
Sunniest month: April 11.3hrs
Coldest month: December 13.8°C 56.8°F
Wettest month: January 81mm 3.2ins
Warmest sea: September 14.9°C 58.8°F
Map showing location of San Jose (37.33939, -121.89496) San Jose map pin © Google

Locations nearby

Top United States locations