Costa Mesa, CA Weather

    09:00 Saturday
    Partly cloudy
    Partly cloudy
    16° Feels like 16°
    Moderate southeast wind Southeast 11 - 22 km/h
    • Today 20 Dec. Mist More information 18° / 12° Moderate southeast wind 11 - 22 km/h
    • Tomorrow 21 Dec. Fog 18° / 11° Gentle west wind 8 - 17 km/h
    • Monday 22 Dec. Fog 16° / 10° Gentle west wind 6 - 16 km/h
    • Tuesday 23 Dec. Moderate rain with cloudy skies 90% 19 mm 17° / 12° Strong southeast wind 32 - 53 km/h
    • Wednesday 24 Dec. Moderate rain with partly cloudy skies 90% 46 mm 18° / 16° Strong southeast wind 32 - 63 km/h
    • Thursday 25 Dec. Moderate rain with partly cloudy skies 90% 34 mm 18° / 14° Strong south wind 22 - 50 km/h
    • Friday 26 Dec. Moderate rain with partly cloudy skies 90% 23 mm 16° / 11° Moderate southeast wind 9 - 30 km/h

    Weather Forecast for Costa Mesa, CA Today

    , 20 December

    Tomorrow

    , 21 December
    10:00 Partly cloudy 16° Partly cloudy
    Feels Like 16°
    Moderate southeast wind Southeast 11 - 22 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 92%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 14108 ft
    11:00 Partly cloudy 16° Partly cloudy
    Feels Like 16°
    Moderate southeast wind Southeast 9 - 22 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 83%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 79%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 14108 ft
    12:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Gentle southeast wind Southeast 8 - 19 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 78%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 65%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Snowline Snowline 14108 ft
    13:00 Scattered clouds 17° Scattered clouds
    Feels Like 17°
    Gentle southeast wind Southeast 8 - 19 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 77%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 53%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Snowline Snowline 14108 ft
    14:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Gentle south wind South 7 - 18 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 76%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 59%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 18 km/h
    • Snowline Snowline 13780 ft
    15:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Gentle south wind South 7 - 17 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 77%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 60%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 13780 ft
    16:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Gentle southeast wind Southeast 6 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 80%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 57%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Snowline Snowline 13780 ft
    Scattered clouds 17:00 Scattered clouds 16° Scattered clouds
    Feels Like 16°
    Gentle southeast wind Southeast 5 - 13 km/h
    		UV Index 0 Low SPF: no
    17:00 Partly cloudy 16° Partly cloudy
    Feels Like 16°
    Gentle southeast wind Southeast 5 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 86%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 36%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 13780 ft
    18:00 Scattered clouds 15° Scattered clouds
    Feels Like 15°
    Gentle east wind East 5 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 47%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 13780 ft
    19:00 Scattered clouds 15° Scattered clouds
    Feels Like 15°
    Gentle east wind East 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 25%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 13780 ft
    Scattered clouds 20:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Gentle east wind East 5 - 9 km/h
    		UV Index 0 Low SPF: no
    20:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Gentle east wind East 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 95%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 11%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 13780 ft
    21:00 Scattered clouds 13° Scattered clouds
    Feels Like 13°
    Gentle east wind East 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 26%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 8 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 13780 ft
    22:00 Partly cloudy 13° Partly cloudy
    Feels Like 13°
    Gentle east wind East 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 59%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 3 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 13780 ft
    Mist 23:00 Mist 13° Mist
    Feels Like 13°
    Gentle east wind East 6 - 10 km/h
    		UV Index 0 Low SPF: no
    23:00 Mist 13° Mist
    Feels Like 13°
    Gentle east wind East 6 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 87%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 650 m
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 13780 ft
    24:00 Mist 13° Mist
    Feels Like 13°
    Gentle east wind East 6 - 11 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 89%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 400 m
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 11 km/h
    • Snowline Snowline 13780 ft

    Sunrise and Sunset

    Sunrise 06:51 Sunset 16:47
    First light 06:24 Midday 11:49 Last light 17:14
    Day length 9h 55m

    Remaining daylight 7h 15m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    20 New Moon
    21 First Quarter
    22 First Quarter
    23 First Quarter
    24 First Quarter
    25 First Quarter
    26 First Quarter
    27 First Quarter
    28 First Quarter
    29 First Quarter
    30 First Quarter
    31 First Quarter
    1 First Quarter
    2 Full Moon

    Air quality in Costa Mesa today

    Detail
    39
    Fair PM₂₅ (24 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

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