San Gabriel (CA) monthly weather averages

Average daytime temperature

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

San Gabriel average temperature chart (Celsius) San Gabriel average temperature chart (Fahrenheit)
Average monthly temperatures in San Gabriel (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 19.4 20.5 20.7 22.6 24 26.7 30.1 30.6 29.2 26.6 22.4 19.4
°F 67 69 69.2 72.6 75.2 80 86.2 87 84.5 79.8 72.3 67

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 Gabriel monthly rainfall chart (mm) San Gabriel monthly rainfall chart (inches)
Average monthly rainfall in San Gabriel (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 86 82 73 30 6 2 1 3 9 10 52 54
inches 3.4 3.2 2.9 1.2 0.2 0.1 0 0.1 0.4 0.4 2.1 2.1
Rainy days 5 5 6 3 1 0 0 1 2 2 4 5

Average annual rainfall in San Gabriel: 323.7mm (127.4 inches)

Average daily sunshine

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

San Gabriel average daily sunshine chart
Average daily sunshine San Gabriel
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.5 8.3 8.9 10.5 9.9 10.7 12.2 11.7 10.1 9 7.7 7.4

Day / night temperatures

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

San Gabriel average minimum / maximum temperatures (Celsius) San Gabriel average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in San Gabriel (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 7.1 8.2 8.9 10.4 12.7 14.9 17 17.5 16.3 13.5 9.7 7.1
Max °C 19.8 20.9 21 22.9 24.3 27 30.5 30.9 29.5 26.9 22.7 19.8
Min °F 44.7 46.7 47.9 50.6 54.9 58.7 62.5 63.5 61.3 56.3 49.5 44.7
Max °F 56.1 58.1 58.8 61.9 65.3 69.6 74.7 75.6 73.2 68.4 61.2 56.1

Sea temperature

The graph below shows the average sea temperature.

San Gabriel average sea temperature chart (Celsius) San Gabriel average sea temperature chart (Fahrenheit)
Average sea temperature around San Gabriel in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.4 14.3 14.3 14.3 15 16.1 17.8 18.6 18.6 17.9 16.6 15.1
°F 57.9 57.7 57.7 57.8 59 61.1 64 65.5 65.5 64.3 61.9 59.1

Wind speed

The graph below shows the average wind speed.

San Gabriel average winspeed by month (km/h) San Gabriel average winspeed by month (mph)
Average wind speed in San Gabriel (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 11 12 13 14 14 13 13 13 12 11 11 10
mph 7 7 8 9 9 8 8 8 8 7 7 6

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 Gabriel relative humidity averages
Average relative humidity in San Gabriel
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
64% 66% 66% 63% 65% 66% 66% 67% 66% 65% 65% 64%