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Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:34
Sunrise
18:24
Sunset
Moon
Waning Gibbous
98% illuminated
19:20
Moonrise
06:48
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Air Quality Data Available
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UV Index
Humidity
Frequently asked questions about weather in San Marcos
How warm does it get in San Marcos?
The warmest month in San Marcos is April, with average high temperatures of 33°C. The average temperature during this period is around 26°C.
How cold does it get in San Marcos?
The coldest month in San Marcos is January, with average low temperatures of 18°C. The average temperature during this period is around 23°C.
What is the wettest time of year in San Marcos?
The wettest month in San Marcos is September, with an average of 293mm of precipitation.
What is the driest time of year in San Marcos?
The driest month in San Marcos is January, with an average of 5mm of precipitation.
