San Marcos, TX Weather


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The most pleasant months of the year for San Marcos are April, October and March. In San Marcos, there are 4 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 95.5°, which ranks it as about average compared to other places in Texas. January is the snowiest month in San Marcos with 0.1 inches of snow, and no months of the year have significant snowfall. The most uncomfortably humid months are July, June and August.

Today's Weather - San Marcos, TX

5 PM PST

Partly Cloudy

87°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightPartly Cloudy66° / 87°SE 5 to 10 mph
Tuesday NightMostly Cloudy70° / 83°SE 5 to 15 mph
Wednesday NightChance Showers And Thunderstorms70° / 82°SE 10 to 15 mph
Thursday NightChance Showers And Thunderstorms70° / 83°SSE 10 to 15 mph
Friday NightChance Showers And Thunderstorms68° / 83°E 10 mph
Saturday NightChance Showers And Thunderstorms68° / 85°SE 15 mph
Sunday NightSlight Chance Showers And Thunderstorms69° / 88°SE 15 mph

Weather Highlights

Summer High: the July high is around 94 degrees
Winter Low: the January low is 39
Rain: averages 35 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 3.8 (10=best), which means it is less comfortable than most places in Texas.

3.8 / 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
January62° 39°
February66° 42°
March73° 49°
April80° 57°
May86° 65°
June91° 71°
July94° 73°
August96° 73°
September90° 67°
October82° 58°
November72° 49°
December63° 40°
Hot, Freezing, Rainy, Snowy Days: San Marcos
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0780
February0470
March0180
April2070
May8080
June19080
July26050
August28050
September16070
October4070
November0170
December0780

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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An area with so much potential and existing natural beauty.Sadly bad urban planning is clearly obvious.Looks like fun for tens of thousands of students.However for the  More

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Over 15 years ago

San Marcos has the most beautiful people and places that I have ever seen throughout my travels. I love this city so much that I decided to settle down here and start a  More

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Over 16 years ago

I spent several summers and a couple winters in San Marcos during my formidable years and really have to tell those interested about what a nice town it is. The best  More

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