Costa Mesa Weather History California, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Mon 31 Aug, 2026 Weather in Costa Mesa

Sunrise: 06:25 AM Sunset: 07:18 PM	Moonrise: 09:02 PM Moonset: 09:51 AM	Max: 29.2 °c	Min: 19.8 °c	Avg: 23.2 °c	Precip: 0.00 mm	Max Wind: 19.4 kph

	Mon 31 0:00 am	Mon 31 3:00 am	Mon 31 6:00 am	Mon 31 9:00 am	Mon 31 12:00 pm	Mon 31 3:00 pm	Mon 31 6:00 pm	Mon 31 9:00 pm
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Temp	20.6°c	19.8°c	21.2°c	23.4°c	27.2°c	29.2°c	23.7°c	20.7°c
Wind	12.6 kmph	10.1 kmph	9.0 kmph	10.1 kmph	15.1 kmph	19.4 kmph	16.9 kmph	11.9 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	14%	42%	66%	80%	21%	8%	12%	8%
Humidity	89%	86%	86%	78%	68%	59%	71%	81%
Pressure	1011 mb	1011 mb	1012 mb	1013 mb	1014 mb	1012 mb	1012 mb	1013 mb

Costa Mesa Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	19°C / 65°F	11°C / 52°F	14°C / 58°F	267 hours	63.55 mm / 2.50 In	3 days	1019 mb / 31 In
February	18°C / 64°F	11°C / 52°F	14°C / 58°F	230 hours	68.70 mm / 2.70 In	3 days	1018 mb / 31 In
March	18°C / 65°F	12°C / 53°F	15°C / 59°F	251 hours	49.47 mm / 1.95 In	3 days	1017 mb / 31 In
April	19°C / 67°F	13°C / 56°F	16°C / 61°F	270 hours	15.84 mm / 0.62 In	1 days	1015 mb / 30 In
May	20°C / 68°F	15°C / 58°F	17°C / 63°F	278 hours	6.45 mm / 0.25 In	1 days	1013 mb / 30 In
June	22°C / 72°F	16°C / 62°F	19°C / 67°F	289 hours	1.62 mm / 0.06 In	0 days	1012 mb / 30 In
July	25°C / 77°F	19°C / 65°F	22°C / 71°F	307 hours	2.15 mm / 0.08 In	0 days	1013 mb / 30 In
August	26°C / 79°F	20°C / 67°F	22°C / 72°F	311 hours	4.92 mm / 0.19 In	0 days	1012 mb / 30 In
September	26°C / 78°F	19°C / 67°F	22°C / 72°F	303 hours	4.23 mm / 0.17 In	0 days	1012 mb / 30 In
October	24°C / 75°F	17°C / 63°F	20°C / 68°F	289 hours	12.82 mm / 0.50 In	1 days	1014 mb / 30 In
November	21°C / 70°F	14°C / 57°F	17°C / 63°F	277 hours	32.78 mm / 1.29 In	1 days	1017 mb / 31 In
December	18°C / 65°F	11°C / 53°F	14°C / 58°F	250 hours	67.98 mm / 2.68 In	3 days	1018 mb / 31 In

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