Riverside (CA) monthly weather averages

Contents

Average daytime temperature

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

Riverside average temperature chart (Celsius) Riverside average temperature chart (Fahrenheit)
Average monthly temperatures in Riverside (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 18.5 19.7 19.7 22.2 24.6 28 32.5 32.7 30.2 26.6 21.8 18.5
°F 65.3 67.4 67.4 71.9 76.2 82.5 90.5 90.8 86.3 79.9 71.2 65.3

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.

Riverside monthly rainfall chart (mm) Riverside monthly rainfall chart (inches)
Average monthly rainfall in Riverside (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 73 64 58 30 8 1 1 3 8 8 39 48
inches 2.9 2.5 2.3 1.2 0.3 0.1 0 0.1 0.3 0.3 1.5 1.9
Rainy days 5 5 5 3 1 1 0 1 1 2 4 4

Average annual rainfall in Riverside: 256.4mm (100.9 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Riverside

Riverside average daily sunshine chart
Average daily sunshine Riverside
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.9 8.6 9.1 10.5 10 10.7 12.1 11.6 10.2 9.1 8.1 7.8

Day / night temperatures

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

Riverside average minimum / maximum temperatures (Celsius) Riverside average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Riverside (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 4.6 5.6 6.4 7.9 10.9 13.4 16.3 16.8 14.7 11.4 7.3 4.4
Max °C 18.9 20 20 22.5 24.9 28.4 32.9 33.1 30.6 27 22.2 18.9
Min °F 40.2 42.1 43.5 46.2 51.6 56.1 61.3 62.2 58.4 52.5 45.1 39.8
Max °F 53.1 55 55.8 59.4 64.2 69.6 76.3 76.8 72.7 66.6 58.5 52.9

Sea temperature

The graph below shows the average sea temperature.

Riverside average sea temperature chart (Celsius) Riverside average sea temperature chart (Fahrenheit)
Average sea temperature around Riverside 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.

Riverside average winspeed by month (km/h) Riverside average winspeed by month (mph)
Average wind speed in Riverside (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 11 12 14 15 14 14 14 13 13 12 11 11
mph 7 8 9 9 9 9 9 8 8 7 7 7

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.

Riverside relative humidity averages
Average relative humidity in Riverside
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
61% 62% 61% 58% 59% 60% 61% 62% 62% 61% 62% 62%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Riverside weather stats

Riverside weather statistics
Hottest month: August 32.7°C 90.9°F
Driest month: July 1mm 0ins
Sunniest month: August 11.6hrs
Coldest month: December 18.5°C 65.3°F
Wettest month: January 73mm 2.9ins
Warmest sea: August 20.5°C 68.9°F
Map showing location of Riverside (33.95335, -117.39616) Riverside map pin © Google

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