San Marcos 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.
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Tue 29 Sep, 2026 Weather in San Marcos

Sunrise: 06:41 AM Sunset: 06:36 PM	Moonrise: 08:09 PM Moonset: 09:44 AM	Max: 26.1 °c	Min: 16.5 °c	Avg: 20.6 °c	Precip: 0.00 mm	Max Wind: 19.0 kph

	Tue 29 0:00 am	Tue 29 3:00 am	Tue 29 6:00 am	Tue 29 9:00 am	Tue 29 12:00 pm	Tue 29 3:00 pm	Tue 29 6:00 pm	Tue 29 9:00 pm
Icon
Temp	17.0°c	16.9°c	16.5°c	20.7°c	26.1°c	24.7°c	22.4°c	20.0°c
Wind	3.6 kmph	2.9 kmph	2.9 kmph	2.9 kmph	14.6 kmph	16.3 kmph	9.4 kmph	5.8 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	0%	0%	0%	0%	0%	0%	0%	0%
Humidity	78%	84%	78%	49%	37%	47%	54%	77%
Pressure	1006 mb	1006 mb	1006 mb	1007 mb	1006 mb	1004 mb	1005 mb	1007 mb

San Marcos Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	18°C / 65°F	8°C / 47°F	13°C / 55°F	275 hours	67.92 mm / 2.67 In	3 days	1019 mb / 31 In
February	18°C / 64°F	9°C / 48°F	13°C / 55°F	244 hours	79.91 mm / 3.15 In	4 days	1017 mb / 31 In
March	19°C / 66°F	10°C / 50°F	14°C / 57°F	256 hours	57.90 mm / 2.28 In	3 days	1016 mb / 30 In
April	20°C / 69°F	11°C / 52°F	15°C / 60°F	281 hours	22.36 mm / 0.88 In	2 days	1014 mb / 30 In
May	21°C / 71°F	13°C / 55°F	17°C / 62°F	286 hours	13.92 mm / 0.55 In	1 days	1013 mb / 30 In
June	24°C / 76°F	15°C / 59°F	19°C / 67°F	312 hours	1.30 mm / 0.05 In	0 days	1012 mb / 30 In
July	27°C / 81°F	18°C / 64°F	22°C / 72°F	331 hours	3.12 mm / 0.12 In	0 days	1012 mb / 30 In
August	28°C / 83°F	19°C / 66°F	23°C / 74°F	332 hours	4.99 mm / 0.20 In	0 days	1012 mb / 30 In
September	28°C / 82°F	19°C / 65°F	22°C / 72°F	326 hours	4.95 mm / 0.19 In	1 days	1012 mb / 30 In
October	25°C / 76°F	15°C / 59°F	19°C / 67°F	306 hours	13.90 mm / 0.55 In	1 days	1014 mb / 30 In
November	21°C / 70°F	11°C / 53°F	16°C / 60°F	291 hours	37.69 mm / 1.48 In	2 days	1016 mb / 30 In
December	18°C / 64°F	9°C / 48°F	13°C / 55°F	268 hours	73.68 mm / 2.90 In	4 days	1018 mb / 31 In

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