With more than 250 sunny days a year, San Antonio is a super spot for outdoor fun. Whether you’re checking out the cool Riverwalk, visiting the famous Alamo, or diving into history at the old Missions, you’ll likely enjoy lovely weather with lots of sunshine.
To help you plan, here’s a simple guide to San Antonio’s weather throughout the year, month by month.
What kind of climate does San Antonio, Texas have?
In scientific terms, San Antonio has a “transitional humid sub-tropical” climate. This type of climate is known for hot and humid summers, along with cool to mild winters. The “transitional” part indicates that we’re on the edge of a semi-arid climate, which means we get less rainfall compared to many other places in the country.
What is San Antonio known for, weather-wise?
San Antonio’s weather is famous for being sunny, hot, and humid for a big part of the year. Even when it’s not hot, it’s usually pretty mild, especially during the beautiful winters.
But here’s the thing – the weather can change a lot in a single day. There’s a running joke here that if you don’t like the weather, just wait ten minutes.
In fall, winter, and spring, you might experience a day in the 80s, followed by a chilly day in the 40s, and then a day of heavy rain. After all that, get ready for months of heat and sunshine. The locals are used to this and just roll with it. ☀️
Does San Antonio have four seasons?
In San Antonio, we don’t exactly follow the traditional four-season script that most folks are used to.
Summers take the spotlight, hanging around from May to October.
Winters are brief and not too chilly (no snow in sight), cozying up in December to February.
Then we squeeze in spring during March and April and fall in November. But, truth be told, the temperatures stay pretty warm during those times compared to elsewhere. So, they don’t quite give you that classic spring and fall vibe.
Here’s a cool tidbit: our leaves don’t do the typical fall thing. They fall in the spring. Thanks to our main tree, the Live Oak, which sheds its leaves when the new ones start growing in the spring, nudging out the old ones from the year before. (And sure, there are some other leaves dropping in the fall, but they’re the minority here).
Does it rain a lot in San Antonio?
San Antonio gets around an average of 33 inches of rain each year. While we’re not exactly in the desert category, our annual rainfall is on the lower end of the scale.
Typically, you can count on some rain almost every month, with the occasional thunderstorm making an appearance, although not necessarily every day or even every week.
Does it ever snow in San Antonio?
Almost never, but not quite. In our two decades here in SA, we’ve seen snow three times, and two of those times were pretty noteworthy. While snow isn’t a regular visitor, ice tends to drop by more often.
On average, we can expect around one ice event each winter. This typically leads to a full city shutdown for 1-3 days because our city isn’t fully equipped to handle prolonged icy road conditions.
Does San Antonio ever experience natural disasters?
San Antonio is like a champion in dodging natural disasters.
No blizzards here because snow is almost a no-show.
Earthquakes? Nope, not near any fault lines.
Hurricanes? Well, we’re a solid 130 miles away from the coast, so unless a super-speedy storm decides to bullseye us, we’re good.
Tornadoes? Just one in the last two decades, and it was a mild EF1.
Flooding is the only real concern, but even that isn’t a massive risk considering our annual rainfall. Mother Nature’s kind to us here.
What is the coldest month in San Antonio?
January tends to be our chilliest month of the year in San Antonio. Bundle up! ❄️
What is the hottest month in San Antonio?
July and August, no doubt, team up to create one extended, scorching hot stretch in San Antonio. It’s like a never-ending heatwave!
What is the best month to visit San Antonio?
November and December get our vote as the top months to visit San Antonio. Why? Because the weather is just perfect – mild, comfortable, and loads of sunshine.
But hey, if those months don’t fit your schedule, consider planning your San Antonio visit anywhere from November to April. That’s when you’re most likely to soak in the optimal weather conditions.
And guess what? It’s party season during this time! Get ready for the San Antonio Stock Show and Rodeo in February and the lively Fiesta San Antonio happening in April. It’s a celebration you won’t want to miss!
How should I pack for my visit to San Antonio?
Preparation is key! Keep a close eye on the forecast in the weeks leading up to your trip, and become a weather hawk in the last 5 days before your Alamo City vacation. This will give you the best heads up on what kind of weather you’ll be facing. Once you’ve got the inside scoop, pack accordingly.
Pro tip: Even if it’s going to be scorching hot during your visit, toss in a lightweight jacket or sweater. Why? Well, places like restaurants, shops, and theaters might fight the heat by cranking up the air conditioning.
It can be a bit much to feel like you’re dining in an icebox and shivering through the experience. An extra layer will make a world of difference in making your indoor moments enjoyable.
January
January takes the crown as the coldest and driest month on average, with highs hovering around 62°F and lows dipping to about 39°F.
But here’s the deal – January can be a stellar time to visit! You get this sweet mix of mild weather and sunny days, minus the humidity drama.
Sure, every now and then, we might get a visit from a random cold front, humorously labeled as “Arctic snaps” by our local news. It brings a few days of chilly vibes, but let’s be real, it’s not exactly “Arctic” bitter.
February
February is like a sibling to January, with average highs in the mid-60s and lows around 42°F, warming up gradually as March peeks around the corner.
Typically, rain chances are pretty slim throughout February, so you won’t need to pack an umbrella.
Now, February can be both a dream and a bit of a headache! It’s a fantastic time to visit (hello, San Antonio Stock Show and Rodeo). But, be warned, the last few years have thrown some curveballs.
In 2023, we got hit with 2-3 days of ice, and in 2021, a major winter storm brought record lows, heaps of snow, and ice, causing widespread power outages.
While that’s more the exception than the rule, just be ready for the chance that your SA trip might line up with a cold front capable of putting the city on pause.
Read also: Fun San Antonio Museums With Free Admission
March
March is when spring officially kicks in for San Antonio, with average highs hitting around 74°F and lows hanging around 50°F.
It’s still quite dry in March, but keep an eye out because rain chances are starting to wake up. Generally, March is a fabulous time to visit San Antonio – unless, of course, you’re in a battle with allergies.
As temperatures rise, those Live Oak trees, super common around here, start budding. This leads to what locals fondly call the “pollening.” Picture waking up one March morning to find everything outside – sidewalks, streets, cars, trash cans, even pets – coated in a yellowish/greenish layer of pollen. It’s almost like a gentle snowfall, but in pollen form and in a matter of hours.
If you’re in the allergy or hay fever club, brace yourself – March can be a bit rough. So, do your research!
April
April turns up the heat and the rain compared to March, with highs hitting the 80s, lows hovering in the upper 50s, and about double the chance of precipitation.
April likes to play a little game, hopping between spring and summer. So, it can either greet you with delightful balmy weather or start cranking up the heat and humidity. Just a heads up, allergies are still pretty persistent in April but will start easing up next month.
Now, if you’re planning an April visit, try syncing it with Fiesta San Antonio for an extra dose of fun. Check out our complete guide to Fiesta San Antonio for all the deets! 🎉
May
In San Antonio, it’s a bit of a twist on the old saying: April flowers set the stage for May showers. Why? Because May takes the crown as the wettest month on average, with nearly 5 inches of rainfall throughout.
May brings the heat too, with highs regularly hitting around 90°F and lows chilling in the low 70s. And here’s a heads up – the added moisture means the humidity will start making its presence felt in May.
June
Hello, summer! Get ready for the sizzle with highs cruising in the mid-90s and lows playing it cool in the mid-70s for the next three months.
Humidity is here to stay, making each day a mix of hot and sticky. Rain chances will stay pretty solid for the rest of this month before taking a dip next month. ☀️
July and August (aka the hell months)
Long and hot – that sums up July and August. These two tag-team to bring the most scorching months of the year, making for a challenging 2+ months of unrelenting heat and humidity. Every day feels like a repeat – sweltering and sticky.
Expect average highs in the upper 90s and lows hanging out in the mid-70s. The bulk of the year’s triple-digit heat will hit during these two months, although 100+ days can start as early as June and extend into September. 🔥
September
Imagine a bell curve, with the peak hitting in July/August. Now, September starts mirroring June and begins a gentle cool-down. But hold off on pulling out those winter coats – highs will linger in the low 90s, and lows will cozy up to the low 70s. There’s a slightly better chance of rain compared to the previous two months.
While fall might be making its entrance in other parts of the U.S., September in South Texas is still firmly planted in summer.
October
October brings a breath of fresh air, finally cooling off from the summer sizzle. It’s like a wetter version of April.
Expect average highs of around 82°F and lows dipping to around 59°F. You can probably rock shorts and short sleeves for a good chunk, if not all, of October. No more feeling like you’re cooking in your car or sweating buckets – it’s a welcome change!
November
Blessed November – the month locals eagerly anticipate. It’s a beauty in SA, with daily highs hanging around 70°F and lows dipping into the upper 40s.
Rain chances are still there but on the decline as the days edge toward winter. This makes November usually sunny, dry, and gloriously mild. If you’re plotting a trip to the Alamo City, now’s the time!
December
“Winter” kicks in for real in San Antonio come December, with average highs cruising around 64°F, lows cozying up to around 41°F, and minimal rain chances.
No white Christmases in the cards here – just loads of sunshine and brisk, though not bone-chilling, temperatures. ☀️
FAQs
What is the weather usually like in San Antonio, Texas?
San Antonio generally experiences a warm climate. Summers are hot with temperatures often exceeding 90°F (32°C), while winters are mild, with daytime temperatures ranging from 50°F to 70°F (10°C to 21°C). It’s advisable to check the current weather forecast before planning a trip.
Does San Antonio have 4 seasons?
San Antonio has a more subtropical climate with distinct seasons, but the transitions between them can be subtle. The city experiences a hot summer, a mild fall, a cool winter, and a warm spring. While the temperature variations may not be as extreme as in some regions, the four seasons are still recognizable.
What’s the best month to go to San Antonio, Texas?
The best time to visit San Antonio is generally during the spring (March to May) and fall (September to November) when temperatures are milder. These months offer pleasant weather for outdoor activities, and you can avoid the more extreme temperatures of summer and the potential for cooler temperatures in winter.
Does it snow a lot in San Antonio?
Snowfall in San Antonio is rare, and the city typically experiences very light snowfall, if any. Winter temperatures seldom drop low enough for significant snow accumulation. If you’re hoping to experience snow, it’s advisable to plan a trip to San Antonio during the winter months, but snowfall is still infrequent.
Hey, it’s James Wilson, the creative force driving the magic at “San Antonio Vista.” I’ve delved deep into the wonders of San Antonio’s attractions. With a rich background in exploring the city’s gems, I’m all about sharing insights, uncovering hidden gems, and fostering a collective love for the beauty of San Antonio. Come along with me on this journey, where we dive into the intricacies of the city and celebrate the charm it brings to the world of tourism!
