Oakley (CA) monthly weather averages

Average daytime temperature

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

Oakley average temperature chart (Celsius) Oakley average temperature chart (Fahrenheit)
Average monthly temperatures in Oakley (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.2 15.7 17.7 20.8 24.7 28.4 31.1 30.9 29.1 24.8 17.5 12.4
°F 54 60.2 63.8 69.5 76.4 83.2 87.9 87.6 84.4 76.6 63.5 54.4

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.

Oakley monthly rainfall chart (mm) Oakley monthly rainfall chart (inches)
Average monthly rainfall in Oakley (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 81 61 53 29 8 3 1 2 6 24 55 62
inches 3.2 2.4 2.1 1.1 0.3 0.1 0.1 0.1 0.2 1 2.2 2.4
Rainy days 9 9 9 6 2 1 1 1 2 4 8 9

Average annual rainfall in Oakley: 302.167mm (119 inches)

Average daily sunshine

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

Oakley average daily sunshine chart
Average daily sunshine Oakley
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.9 7.9 9.5 11.5 12.7 13.1 13.1 12.1 11.2 9.6 6.8 5.4

Day / night temperatures

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

Oakley average minimum / maximum temperatures (Celsius) Oakley average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Oakley (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.6 4.7 5.9 7.1 9.6 12 13.1 13.3 12.3 9.5 5.8 3
Max °C 12.5 16 18 21.2 25.1 28.9 31.5 31.3 29.5 25.2 17.8 12.7
Min °F 36.6 40.4 42.5 44.7 49.2 53.5 55.6 55.9 54.1 49 42.4 37.3
Max °F 45.5 50.5 53.4 57.4 63.1 68.7 72.1 72.1 69.6 63.1 53.2 46

Sea temperature

The graph below shows the average sea temperature.

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

Oakley average winspeed by month (km/h) Oakley average winspeed by month (mph)
Average wind speed in Oakley (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 13 16 17 18 19 17 17 14 13 12 12
mph 7 8 10 10 11 12 11 10 9 8 7 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.

Oakley relative humidity averages
Average relative humidity in Oakley
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
81% 77% 72% 66% 61% 59% 58% 60% 61% 65% 76% 82%

Other monthly averages

UV index Best time to go?

Oakley weather stats

Oakley weather statistics
Hottest month: July 31.1°C 88°F
Driest month: July 1mm 0ins
Sunniest month: July 13.1hrs
Coldest month: January 12.2°C 54°F
Wettest month: January 81mm 3.2ins
Warmest sea: September 14.9°C 58.8°F
Map showing location of Oakley (37.99742, -121.71245) Oakley map pin © Google

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