Costa Mesa, California, United States Climate

Weather: 0°C/0°F, Wind SW at 0 km/h, 0% Humidity, 0% Chance of rain

United States
(Photo by Drew Tilk on Unsplash)
Contents

Costa Mesa Climate Summary

Located at an elevation of 145.01 meters (475.75 feet) above sea level, Costa Mesa has a Mediterranean, hot summer climate (Classification: Csa). The district’s yearly temperature is 20.38ºC (68.68ºF) and it is 7.74% higher than United States’s averages. Costa Mesa typically receives about 5.21 millimeters (0.21 inches) of precipitation and has 10.91 rainy days (2.99% of the time) annually.

Country United States
City California
Longitude -117.9047429
Latitude 33.6638439
Attitude/Elevation 145.01m (475.75ft)
Local time Friday 13:03
Annual high temperature 21.84ºC (71.31ºF)
Annual low temperature 17.78ºC (64.0ºF)
Average annual precip. 5.21mm (0.21in)
Warmest month August (26.76ºC / 80.17ºF)
Coldest Month February (13.66ºC / 56.59ºF)
Wettest Month December (11.92mm / 0.47in)
Driest Month June (0.25mm / 0.01in)
Number of days with rainfall (≥ 1.0 mm) 10.91 days (2.99%)
Days with no rain 354.09 days (97.01%)
Humidity 63.59%

Climate Costa Mesa: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 26.0(78.8) 27.0(80.6) 25.0(77.0) 28.0(82.4) 28.0(82.4) 29.0(84.2) 33.0(91.4) 31.0(87.8) 36.0(96.8) 33.0(91.4) 29.0(84.2) 25.0(77.0) 36.0(96.8)
Average high °C (°F) 19.35(66.83) 18.04(64.47) 17.52(63.54) 19.33(66.79) 20.25(68.45) 22.61(72.7) 25.66(78.19) 26.76(80.17) 26.43(79.57) 25.06(77.11) 22.08(71.74) 19.04(66.27) 21.84(71.31)
Daily mean °C (°F) 17.57(63.63) 16.41(61.54) 16.12(61.02) 18.1(64.58) 19.12(66.42) 21.26(70.27) 24.19(75.54) 25.31(77.56) 25.11(77.2) 23.63(74.53) 20.43(68.77) 17.32(63.18) 20.38(68.68)
Average low °C (°F) 14.84(58.71) 13.66(56.59) 13.89(57.0) 15.48(59.86) 16.7(62.06) 18.59(65.46) 21.6(70.88) 22.87(73.17) 22.37(72.27) 21.15(70.07) 17.46(63.43) 14.71(58.48) 17.78(64.0)
Record low °C (°F) 7.0(44.6) 8.0(46.4) 10.0(50.0) 6.0(42.8) 13.0(55.4) 15.0(59.0) 17.0(62.6) 17.0(62.6) 18.0(64.4) 16.0(60.8) 10.0(50.0) 10.0(50.0) 6.0(42.8)
Average precipitation mm (inches) 6.75(0.27) 10.04(0.4) 9.46(0.37) 4.24(0.17) 2.16(0.09) 0.25(0.01) 5.82(0.23) 2.32(0.09) 1.03(0.04) 2.22(0.09) 6.29(0.25) 11.92(0.47) 5.21(0.21)
Average precipitation days (≥ 1.0 mm) 0.91 1.64 2.18 0.55 0.73 0.0 1.27 0.91 0.36 0.27 0.82 1.27 0.91
Average relative humidity (%) 58.18 56.2 65.62 67.8 69.97 71.27 69.6 68.06 65.51 59.12 55.78 55.99 63.59
Mean monthly sunshine hours 9.67 10.63 10.28 10.93 13.45 14.06 13.89 11.44 11.48 11.22 8.34 7.95 11.11

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Costa Mesa in recent years.

Costa Mesa Temperature by Month

August
25.31°C | 77.56°F
September
25.11°C | 77.2°F
July
24.19°C | 75.54°F
October
23.63°C | 74.53°F
June
21.26°C | 70.27°F
November
20.43°C | 68.77°F
May
19.12°C | 66.42°F
April
18.1°C | 64.58°F
January
17.57°C | 63.63°F
December
17.32°C | 63.18°F
February
16.41°C | 61.54°F
March
16.12°C | 61.02°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Temperature Max Average Min
Max Temperature 26.0°C (78.8°F) 18.86°C (65.95°F) 13.0°C (55.4°F)
Avg Temperature 23.0°C (73.4°F) 17.29°C (63.12°F) 12.0°C (53.6°F)
Min Temperature 20.0°C (68.0°F) 14.79°C (58.62°F) 10.0°C (50.0°F)
Dew Point Max Average Min
Dew Point 14.0°C (57.2°F) 7.43°C (45.37°F) -4.0°C (24.8°F)
Precipitation Max Average Min Sum
Precipitation 10.8mm | 0.43in 0.65mm | 0.03in 0.0mm | 0in 18.2mm | 0.72in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 28.0kmh | 17.4mph 10.29kmh | 6.39mph 4.0kmh | 2.49mph
Gust Wind 36.0kmh | 22.37mph 12.71kmh | 7.9mph 5.0kmh | 3.11mph
Sea Level Pressure Max Average Min
Sea Level Pressure 10.8mb 0.65mb 0.0mb

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
February ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2018-02-01 21 | 69.8 10 | 50.0 51 4 | 2.49 30.0 | 1016 0.0 | 0.0
2018-02-02 21 | 69.8 9 | 48.2 51 5 | 3.11 30.09 | 1019 0.0 | 0.0
2018-02-03 22 | 71.6 11 | 51.8 52 5 | 3.11 30.09 | 1019 0.0 | 0.0
2018-02-04 23 | 73.4 13 | 55.4 57 6 | 3.73 30.03 | 1017 0.0 | 0.0
2018-02-05 21 | 69.8 14 | 57.2 65 6 | 3.73 29.97 | 1015 0.0 | 0.0
2018-02-06 20 | 68.0 14 | 57.2 73 8 | 4.97 30.0 | 1016 0.0 | 0.0
2018-02-07 23 | 73.4 10 | 50.0 50 7 | 4.35 30.18 | 1022 0.0 | 0.0
2018-02-08 23 | 73.4 8 | 46.4 42 6 | 3.73 30.12 | 1020 0.0 | 0.0
2018-02-09 20 | 68.0 13 | 55.4 64 9 | 5.59 29.97 | 1015 0.0 | 0.0
2018-02-10 16 | 60.8 13 | 55.4 80 12 | 7.46 29.85 | 1011 0.1 | 0.0
2018-02-11 18 | 64.4 11 | 51.8 68 9 | 5.59 29.91 | 1013 0.0 | 0.0
2018-02-12 14 | 57.2 9 | 48.2 71 14 | 8.7 29.85 | 1011 1.3 | 0.05
2018-02-13 15 | 59.0 6 | 42.8 57 10 | 6.21 30.12 | 1020 1.4 | 0.06
2018-02-14 16 | 60.8 9 | 48.2 64 8 | 4.97 30.09 | 1019 1.9 | 0.07
2018-02-15 19 | 66.2 10 | 50.0 60 9 | 5.59 30.09 | 1019 0.3 | 0.01
2018-02-16 20 | 68.0 5 | 41.0 39 11 | 6.84 30.15 | 1021 0.0 | 0.0
2018-02-17 21 | 69.8 9 | 48.2 49 7 | 4.35 30.09 | 1019 0.0 | 0.0
2018-02-18 17 | 62.6 11 | 51.8 65 10 | 6.21 29.94 | 1014 0.0 | 0.0
2018-02-19 12 | 53.6 1 | 33.8 48 28 | 17.4 29.91 | 1013 0.8 | 0.03
2018-02-20 14 | 57.2 -4 | 24.8 31 12 | 7.46 30.15 | 1021 0.0 | 0.0
2018-02-21 13 | 55.4 1 | 33.8 43 11 | 6.84 30.15 | 1021 0.7 | 0.03
2018-02-22 13 | 55.4 5 | 41.0 60 13 | 8.08 30.21 | 1023 0.9 | 0.04
2018-02-23 12 | 53.6 0 | 32.0 45 22 | 13.67 30.21 | 1023 0.0 | 0.0
2018-02-24 14 | 57.2 0 | 32.0 39 10 | 6.21 30.27 | 1025 0.0 | 0.0
2018-02-25 17 | 62.6 5 | 41.0 47 11 | 6.84 30.18 | 1022 0.0 | 0.0
2018-02-26 14 | 57.2 6 | 42.8 58 12 | 7.46 29.97 | 1015 0.0 | 0.0
2018-02-27 12 | 53.6 3 | 37.4 57 12 | 7.46 29.97 | 1015 10.8 | 0.43
2018-02-28 13 | 55.4 6 | 42.8 61 11 | 6.84 30.18 | 1022 0.0 | 0.0

Costa Mesa 3 Year Historical Weather Data

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