Home   Weather   Costa Mesa   Climate
Flag for USA

Climate & Weather Averages in Costa Mesa, California, USA

Now
66 °F

Passing clouds.


Feels Like: 66 °F
Forecast: 71 / 60 °F
Wind: 5 mph from Southeast

Location: John Wayne Airport-Orange County Airport

Current Time: Oct 14, 2019 at 12:59:22 am

Latest Report: Oct 14, 2019 at 12:12 am


Visibility: 10 mi

Pressure: 29.89 "Hg

Humidity: 65%

Dew Point: 54 °F

Location of Costa MesaLocation

Annual Weather Averages in Costa Mesa

Based on weather reports collected during 1985–2015.

All Year Climate & Weather Averages in Costa Mesa

High Temp: 82 °F

Low Temp: 47 °F

Mean Temp: 65 °F

Precipitation: 0.28"

Humidity: 65%

Dew Point: 52 °F

Wind: 5 mph

Pressure: 29.98 "Hg

Visibility: 10 mi

January Climate & Weather Averages in Costa Mesa

High Temp: 69 °F

Low Temp: 47 °F

Mean Temp: 58 °F

Precipitation: 0.83"

Humidity: 62%

Dew Point: 44 °F

Wind: 4 mph

Pressure: 30.08 "Hg

Visibility: 11 mi

February Climate & Weather Averages in Costa Mesa

High Temp: 68 °F

Low Temp: 49 °F

Mean Temp: 58 °F

Precipitation: 1.15"

Humidity: 65%

Dew Point: 46 °F

Wind: 4 mph

Pressure: 30.05 "Hg

Visibility: 11 mi

March Climate & Weather Averages in Costa Mesa

High Temp: 69 °F

Low Temp: 52 °F

Mean Temp: 60 °F

Precipitation: 0.47"

Humidity: 66%

Dew Point: 48 °F

Wind: 5 mph

Pressure: 30.02 "Hg

Visibility: 11 mi

April Climate & Weather Averages in Costa Mesa

High Temp: 71 °F

Low Temp: 54 °F

Mean Temp: 63 °F

Precipitation: 0.10"

Humidity: 65%

Dew Point: 50 °F

Wind: 6 mph

Pressure: 29.98 "Hg

Visibility: 11 mi

May Climate & Weather Averages in Costa Mesa

High Temp: 73 °F

Low Temp: 58 °F

Mean Temp: 65 °F

Precipitation: 0.02"

Humidity: 67%

Dew Point: 54 °F

Wind: 6 mph

Pressure: 29.95 "Hg

Visibility: 10 mi

June Climate & Weather Averages in Costa Mesa

High Temp: 76 °F

Low Temp: 61 °F

Mean Temp: 68 °F

Precipitation: 0.01"

Humidity: 68%

Dew Point: 57 °F

Wind: 7 mph

Pressure: 29.91 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Costa Mesa

High Temp: 80 °F

Low Temp: 65 °F

Mean Temp: 72 °F

Precipitation: 0.01"

Humidity: 68%

Dew Point: 61 °F

Wind: 6 mph

Pressure: 29.93 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Costa Mesa

High Temp: 82 °F

Low Temp: 65 °F

Mean Temp: 73 °F

Precipitation: 0.00"

Humidity: 67%

Dew Point: 61 °F

Wind: 6 mph

Pressure: 29.91 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Costa Mesa

High Temp: 81 °F

Low Temp: 64 °F

Mean Temp: 73 °F

Precipitation: 0.00"

Humidity: 67%

Dew Point: 60 °F

Wind: 5 mph

Pressure: 29.89 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Costa Mesa

High Temp: 77 °F

Low Temp: 59 °F

Mean Temp: 68 °F

Precipitation: 0.07"

Humidity: 66%

Dew Point: 56 °F

Wind: 4 mph

Pressure: 29.95 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Costa Mesa

High Temp: 73 °F

Low Temp: 52 °F

Mean Temp: 63 °F

Precipitation: 0.15"

Humidity: 61%

Dew Point: 47 °F

Wind: 4 mph

Pressure: 30.03 "Hg

Visibility: 10 mi

December Climate & Weather Averages in Costa Mesa

High Temp: 67 °F

Low Temp: 47 °F

Mean Temp: 57 °F

Precipitation: 0.58"

Humidity: 62%

Dew Point: 43 °F

Wind: 3 mph

Pressure: 30.08 "Hg

Visibility: 11 mi

Advertising

Quick Climate Info

Hottest MonthAugust (73 °F avg)
Coldest MonthDecember (57 °F avg)
Wettest MonthFebruary (1.15" avg)
Windiest MonthJune (7 mph avg)
Annual precip.3.39" (per year)

Weather by CustomWeather, © 2019