ClimateForecastSeptemberOctober >>

San Marcos weather in September (Texas, United States of America)

What weather conditions can you expect in San Marcos this September? Explore our page to find a thorough overview of this month's weather conditions.

Temperatures

The typical weather for September in San Marcos includes very high temperatures and high rainfall. Throughout the daytime, temperatures often hover around 33°C. However, as the sun sets and evening approaches, there's a noticeable cool-down. Temperatures gently drop to a more temperate 20°C. Note that these temperatures are average, but some days may be hotter. Dress in cool, breathable fabrics to stay comfortable in the heat.

Precipitation

San Marcos in September usually receives high rainfall, averaging around 110 mm for the month. Based on our climate data of the past 30 years, about 10 days of rain are anticipated.

Average sunshine

Expect a lot of sunshine this month, with about 234 hours of sunny weather. The abundant sunlight creates a lively and bright atmosphere.

If your ideal day consists of dry skies and moderate temperatures March, April and November generally stand out with the best circumstances. While August tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San Marcos climate page with graphs.

 

San Marcos, monthly averages in September

Min TemperatureMin Temperature 20°C  
Max TemperatureMax Temperature 33°C  
Chance of RainChance of Rain 32%  
PrecipitationPrecipitation 110 mm  
Rainy daysRainy days 10 days  
HumidityHumidity 68% *  
SunshineSunshine 234 hours *  
Percentage SunshinePercentage Sunshine 63% *  
Data from: Austin, the United States of America (51 KM, 32 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
9/10
Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in San Marcos.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.