Fairfield (CA) monthly weather averages

Average daytime temperature

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

Fairfield average temperature chart (Celsius) Fairfield average temperature chart (Fahrenheit)
Average monthly temperatures in Fairfield (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.4 15.8 17.7 20.7 24.3 28.1 30.3 29.9 28.2 24.3 17.3 12.5
°F 54.3 60.4 63.9 69.2 75.8 82.5 86.5 85.9 82.8 75.8 63.1 54.5

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.

Fairfield monthly rainfall chart (mm) Fairfield monthly rainfall chart (inches)
Average monthly rainfall in Fairfield (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 136 96 80 40 11 4 1 2 8 33 84 106
inches 5.3 3.8 3.1 1.6 0.4 0.1 0 0.1 0.3 1.3 3.3 4.2
Rainy days 10 9 10 6 3 1 1 1 2 4 8 9

Average daily sunshine

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

Fairfield average daily sunshine chart
Average daily sunshine Fairfield
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.9 7.9 9.4 11.4 12.5 12.9 12.9 11.9 11 9.4 6.7 5.4

Day / night temperatures

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

Fairfield average minimum / maximum temperatures (Celsius) Fairfield average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Fairfield (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.8 4.8 5.6 6.6 9.1 11.8 12.9 12.9 11.8 9.3 5.9 3.3
Max °C 12.6 16.1 18 21 24.7 28.5 30.7 30.4 28.7 24.7 17.6 12.8
Min °F 37 40.6 42.1 43.9 48.4 53.2 55.2 55.1 53.2 48.7 42.5 37.9
Max °F 45.9 50.7 53.2 56.8 62.4 68.2 71.2 70.9 68.4 62.6 53.1 46.4

Sea temperature

The graph below shows the average sea temperature.

Fairfield average sea temperature chart (Celsius) Fairfield average sea temperature chart (Fahrenheit)
Average sea temperature around Fairfield in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.1 12 11.9 11.7 11.8 12.2 13.1 14 14.4 14 13.4 12.6
°F 53.8 53.6 53.5 53.1 53.2 54 55.5 57.2 57.9 57.3 56.1 54.6

Wind speed

The graph below shows the average wind speed.

Fairfield average winspeed by month (km/h) Fairfield average winspeed by month (mph)
Average wind speed in Fairfield (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 13 16 17 18 19 18 17 15 13 12 12
mph 7 8 10 11 11 12 11 10 9 8 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.

Fairfield relative humidity averages
Average relative humidity in Fairfield
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
81% 77% 72% 67% 64% 62% 61% 64% 63% 67% 76% 81%

Other monthly averages

UV index Best time to go?

Fairfield weather stats

Fairfield weather statistics
Hottest month: July 30.3°C 86.5°F
Driest month: July 1mm 0ins
Sunniest month: July 12.9hrs
Coldest month: January 12.4°C 54.3°F
Wettest month: January 136mm 5.4ins
Warmest sea: September 14.4°C 57.9°F
Map showing location of Fairfield (38.24936, -122.03997)

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