San Marcos, CA Weather


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The most pleasant months of the year for San Marcos are October, June and July. In San Marcos, there are 8 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for San Marcos with an average high temperature of 82.4°, which ranks it as cooler than most places in California. Any measurable snowfall is a rare occurance in San Marcos. But there some days when the humidity becomes unpleasant, especially in August and July.

Today's Weather - San Marcos, CA

9 AM PST

Patchy Drizzle then Partly Sunny

55°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayPatchy Drizzle then Partly Sunny64° / 54°W 5 to 15 mph
ThursdaySlight Chance Rain Showers then Mostly Cloudy63° / 53°W 5 to 10 mph
FridayChance Rain Showers then Partly Sunny64° / 53°SW 5 to 15 mph
SaturdayMostly Sunny67° / 50°SW 5 to 15 mph
SundayPatchy Fog then Sunny70° / 53°SW 5 to 10 mph
MondaySunny74° / 54°SW 5 to 10 mph
TuesdayPatchy Fog then Mostly Sunny73° / 54°S 5 to 15 mph

Weather Highlights

Summer High: the July high is around 81 degrees
Winter Low: the January low is 45
Rain: averages 14 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the San Marcos area is 9.7 (10=best), which means it is more comfortable than most places in California.

9.7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January67° 45°
February67° 46°
March68° 48°
April71° 51°
May73° 55°
June76° 59°
July81° 63°
August82° 64°
September81° 62°
October77° 56°
November71° 49°
December66° 44°
Hot, Freezing, Rainy, Snowy Days: San Marcos
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0060
February0070
March0060
April1040
May1020
June2010
July4010
August6010
September5010
October2030
November1040
December0060

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for San Marcos
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Just an amazing place to live. I have lived in 7 states and almost countless cities. Sam Marcos is one of the best. This is literally the longest place I have lived  More

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Over 14 years ago

Is this area to expensive for the average income retired  More

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Over 17 years ago

Beautiful Mediterranean climate with bright sunshine and ocean breazes. City is just 15 minutes away from the  More

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