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It’s October, but don’t get your hopes up for cooler weather in San Antonio anytime soon

We’ll likely have to wait until late this month for a cold front

It won't be cooler in San Antonio until mid- to late-October (Copyright 2024 by KSAT - All rights reserved.)

Yes, it’s technically fall, but we’ll have to settle for the scented candles and leafy décor to put us in the autumnal mood.

It’s hot, and there’s nothing in the long-term forecast to suggest that’s going to change in the next couple of weeks.

MAIN TAKEAWAYS

  • San Antonio usually experiences cooler weather by now
  • No cold fronts expected through at least mid-October
  • Staying rain free
Our first days with highs at or below 80° and lows at or below 60° usually happen in September (Copyright 2024 by KSAT - All rights reserved.)

WHAT’S NORMAL?

When looking at climatology for a certain area, it’s standard to grab data from the last 30 years. From 1993 to 2023, high temps in San Antonio dipped to or below 80 degrees for the first time in autumn by Sept. 17, and we typically experience the first morning at or below 60 degrees by Sept. 25. We’re already past those benchmarks, as we’ve yet to see a morning below 60 degrees or an afternoon cooler than 80 degrees at San Antonio International Airport.

The latest afternoon at or below 80 degrees occurred in 2015 on Oct. 24. And the latest mornings lows dipped to or below 60 degrees was in 2007 on Oct. 19.

What’s impressive (or depressing, depending on how you feel) is that we could break both of these late records, because there’s...

NO RELIEF IN SIGHT

In October, we typically see our first significant cold fronts of the season. Dense, cool air from Canada sinks south and spills across the United States. If the layer of air is cold enough, it’ll make it all the way to San Antonio and South Central Texas.

Looking at the latest forecast data, however, temperatures in Canada and northern United States are expected to remain warmer than average -- by some 15 to 20 degrees -- through at least the middle of October or even later. This means no cold fronts for us in San Antonio anytime soon.

Warmer than average weather in Canada will prevent cold fronts from making it to San Antonio (Copyright 2024 by KSAT - All rights reserved.)

STAYING DRY, TOO

October is San Antonio’s third rainiest month. On average the Alamo City receives 3.75 inches of rain at San Antonio International Airport. There may be a spotty shower or two, but without a cold front to kickstart rain, it’s looking to stay dry for us through at least mid- to late-October.

This is not good when you consider that drought still grips South Central Texas. In fact, Bexar County has been in some form of continual drought since Jan. 4, 2022 -- that’s more than 1,000 days straight!

It's been over 1,000 days since Bexar County has been drought-free (Copyright 2024 by KSAT - All rights reserved.)

IT’LL FEEL COOL...EVENTUALLY

Even though fall-like weather is off to a very late start, the earth continues to revolve around the sun 😉. We will eventually see that first cold snap of the season, and -- as Your Weather Authority -- you can bet that we’ll give you enough of a heads up!


About the Author
Sarah Spivey headshot

Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017. Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KTEN News. When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.

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