Texas heat is no joke.
Don’t underestimate this. Even people who’ve lived in Texas their entire lives plan their days carefully around the heat.
This guide covers everything you need to survive and actually enjoy summer in New Braunfels. Let’s make sure the heat doesn’t ruin your Hill Country adventure.
Understanding Texas Summer Heat: How Hot Does It Get?
At the end of August, temperatures in New Braunfels can easily reach 40°C (104°F) or higher. That’s not an occasional heat wave, just another Tuesday.
Even at night, temperatures can stay in the mid-90s°F (around 35°C). The good news is that at least the sun isn’t directly beating down on you after dark, which makes evening activities significantly more tolerable than midday ones.
Here’s the saving grace: virtually every hotel, building, bar, restaurant, and rental car in New Braunfels has air conditioning set to around 22-23°C (72-73°F). Indoor spaces are aggressively climate-controlled, and you’ll be grateful for it.
Survival Rules for Being Outdoors
Timing Is Everything
Here’s the golden rule: Do NOT be outdoors during the peak heat hours (noon to 7 PM) for extended periods unless you’re in shade or actively in water. The midday sun is brutal and unforgiving.
Avoid physical activity outdoors except before noon or after 7 PM. That means no hiking at 3 PM, no jogging at midday, no thinking you’ll just tough it out because you’re “in good shape.” The heat doesn’t care about your fitness level, it’ll take you down anyway.
Plan your day strategically: Do outdoor adventures and activities early in the morning. Get up at 6 or 7 AM (yes, even on vacation) and hit the trails, river, or whatever outdoor activity you’re planning.
Be back indoors or in shaded, water-accessible areas by midday. Spend the afternoon doing indoor activities—museums, shopping, restaurants, or just relaxing in your air-conditioned hotel.
This schedule might feel restrictive, but it’s how locals survive summer. Fighting against it means suffering unnecessarily.
Shade + Water = Life
If you’re doing anything outdoors, choose locations that have pools or natural water access. The Guadalupe River, Comal River, Landa Park with its springs, and Schlitterbahn water park. Being in or near water makes the heat manageable.
Shade is your best friend. Bring a pop-up canopy if you’re spending the day somewhere without natural shade. Those few degrees of temperature difference between sun and shade can be enormous when you’re dealing with 100°F+ heat.
The springs and rivers around New Braunfels stay refreshingly cool even when air temperatures are scorching. The water is spring-fed, which means it maintains a consistent, comfortable temperature year-round.
Comal Springs stays around 72°F (22°C) regardless of how hot it gets outside. This is why tubing the river is such a popular summer activity; it’s one of the few ways to be outdoors and actually stay cool.
Hydration
Drink way more water than you think you need. Your normal hydration habits don’t apply in Texas summer heat. You’re sweating constantly even if you don’t feel it, and dehydration sneaks up fast.
Kids dehydrate especially quickly. Monitor them closely and make them drink water regularly—not just when they say they’re thirsty. By the time a child says they’re thirsty, they’re already somewhat dehydrated.
Sodas and sugary drinks are not substitutes for water. In fact, they’ll dehydrate you faster. Stay away from Cokes, heavily sugared drinks, excessive caffeine, and even some sports drinks that are loaded with sugar. Choose water, sugar-free options, or diluted juice instead.
Pickle juice is an underrated source of electrolytes. It sounds weird, but it works. The sodium helps your body retain water and replenish what you lose through sweat.
Monitor the color of your urine. This is the easiest way to check hydration status. Dark yellow means you’re dehydrated and need to drink more water immediately. Light yellow or clear means you’re properly hydrated.
Carry water bottles with you everywhere. Refill them constantly. Don’t wait until you feel thirsty to drink.
Acclimation
It’s unpopular advice and may seem counterintuitive but hear me out.
The more you avoid heat entirely, the worse it feels when you have to be in it. Try reducing your indoor AC temperature slightly (from 68°F to 72°F, for example) and gradually increasing outdoor exposure.
Your body can adjust to heat over time, making outdoor activities more tolerable. Of course, this doesn’t mean suffering needlessly. It only means not going from 68-degree air conditioning directly into 104-degree heat and expecting your body to handle it well.
Clothing + Sun Protection
What to Wear
Loose-fitting, light-colored clothing made of breathable fabrics like cotton or linen. Tight clothing traps heat against your body. Dark colors absorb more heat from the sun. Choose loose, light, and breathable.
Long sleeves can actually keep you cooler than short sleeves and protect you from sun exposure. Covering your skin protects it from direct sun, which can make you feel cooler overall. Many outdoor workers in hot climates wear long sleeves for exactly this reason.
Sun hats are non-negotiable. Choose hats that cover your ears and the back of your neck because these areas burn easily and are often forgotten until it’s too late. Baseball caps don’t provide enough coverage. Wide-brimmed hats or hats with neck flaps work better.
Neck cooler products are small towels or wraps that get cold when wet and provide instant relief. You wet them, wring them out, and wear them around your neck. They use evaporative cooling to actually lower your body temperature. They’re inexpensive and surprisingly effective.
Sunscreen Strategy
Cover kids from head to toe with sunscreen before heading outdoors. Don’t miss ears, tops of feet, back of neck, or any exposed skin. Texas sun will find every spot you missed.
Reapply sunscreen frequently—every 1-2 hours, or immediately after swimming or heavy sweating. The “waterproof” claim on sunscreen only goes so far. Reapply more than you think necessary.
Use SPF 30 or higher. Apply it 15-30 minutes before going outside so it has time to absorb. And then—this is important—reapply. And then reapply again.
Stay Safe and Enjoy the New Braunfels Summer!
Photo: Facebook
An infographic of some basic tips on how to survive the heat of Texas summer. Credit: Whole Earth Provision Co. via Facebook
New Braunfels is an amazing summer destination—the rivers, the German heritage, the food, the friendly atmosphere all make it worth visiting. But the heat here demands preparation. You can’t just show up and wing it like you might in a milder climate.
Learn how your body responds to heat and take breaks. Don’t wait before you actually feel bad!
If you do start feeling off—stop immediately. Hydrate, cool down, rest. Nothing on your vacation itinerary is worth heat stroke.
With proper preparation and respect for the temperatures, you’ll enjoy everything Texas Hill Country has to offer without getting overwhelmed by the sun. The heat is intense, but it’s manageable if you’re smart about it.
Featured image credit: Gunjan Ag via Facebook