Aliso Viejo (CA) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Aliso Viejo

Aliso Viejo average temperature chart (Celsius) Aliso Viejo average temperature chart (Fahrenheit)
Average monthly temperatures in Aliso Viejo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 18.2 18.6 18.5 20.2 21.4 22.9 25.7 26.4 26 23.9 20.7 18.1
°F 64.7 65.5 65.3 68.4 70.5 73.2 78.2 79.5 78.8 75.1 69.2 64.6

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.

Aliso Viejo monthly rainfall chart (mm) Aliso Viejo monthly rainfall chart (inches)
Average monthly rainfall in Aliso Viejo (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 64 60 58 27 5 2 1 2 5 5 38 44
inches 2.5 2.4 2.3 1.1 0.2 0.1 0 0.1 0.2 0.2 1.5 1.7
Rainy days 5 5 6 4 1 1 0 1 1 2 4 5

Average annual rainfall in Aliso Viejo: 226.533mm (89.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Aliso Viejo

Aliso Viejo average daily sunshine chart
Average daily sunshine Aliso Viejo
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8 8.5 9.1 10.4 9.5 9.9 11.8 11.4 9.8 8.9 8 7.8

Day / night temperatures

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

Aliso Viejo average minimum / maximum temperatures (Celsius) Aliso Viejo average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Aliso Viejo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 6.4 7.1 7.9 9.3 11.6 13.7 15.7 16.4 15.4 12.6 9.1 6.2
Max °C 18.5 18.9 18.8 20.5 21.6 23.1 25.9 26.7 26.3 24.2 21 18.4
Min °F 43.4 44.8 46.1 48.7 52.9 56.7 60.3 61.4 59.6 54.7 48.3 43.2
Max °F 54.3 55.4 55.9 58.8 61.9 65.1 69.4 70.7 69.4 65.1 59 54.1

Sea temperature

The graph below shows the average sea temperature.

Aliso Viejo average sea temperature chart (Celsius) Aliso Viejo average sea temperature chart (Fahrenheit)
Average sea temperature around Aliso Viejo in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.9 14.9 15.1 15.6 16.6 18 19.8 20.5 20.4 19.3 17.5 15.7
°F 58.8 58.8 59.3 60 61.8 64.4 67.6 69 68.8 66.7 63.5 60.2

Wind speed

The graph below shows the average wind speed.

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

Aliso Viejo relative humidity averages
Average relative humidity in Aliso Viejo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
64% 67% 66% 65% 67% 69% 69% 69% 69% 67% 66% 65%