Summer Safety for Babies: What Colorado Families Need to Know About Heat, Sun, Strollers, and Outdoor Activities
Summer in Colorado is beautiful.
It's also a season that requires a little extra awareness when caring for babies.
Many parents know not to leave a child in a hot car, but they're often surprised to learn how quickly babies can become overheated in strollers, carriers, car seats, and even during everyday outdoor activities.
Here in Colorado, we face a unique combination of summer heat, intense sunshine, and high elevation. Together, these factors can increase the risk of dehydration, overheating, and sun exposure for both babies and caregivers.
The good news is that a few simple precautions can go a long way toward keeping your baby safe and comfortable all summer long.
Why Babies Overheat More Easily
Babies are not simply small adults.
Compared to their body size, babies have a larger surface area, immature temperature regulation systems, and limited ability to cool themselves through sweating.
They also can't tell us when they're becoming too hot.
For this reason, caregivers must pay close attention to environmental conditions and signs of overheating.
Summer in Colorado Comes With Unique Challenges
Here along Colorado's Front Range, summer safety isn't just about temperature.
It's also about elevation and sun exposure.
Many Colorado communities regularly experience summer temperatures in the 80s and 90s, with occasional days climbing well above that. At the same time, our higher elevation means the sun's rays are significantly stronger than they are closer to sea level.
The Environmental Protection Agency estimates that UV exposure increases approximately 6–10% for every 1,000 feet of elevation gain.
That means a sunny day in Boulder County may expose your baby's skin to significantly more ultraviolet radiation than the same temperature day in many other parts of the country.
Additionally, Colorado's dry climate can be misleading.
An 85-degree day may feel relatively comfortable to adults because of the low humidity, while babies are quietly becoming overheated.
Want More Summer Resources?
I've put together a free Summer Wellness Collection for families, including articles on:
☀️ Heat Safety During Pregnancy & Postpartum
💧 Hydration During Pregnancy & Postpartum
😴 Pregnancy Fatigue & Exhaustion
👶 Summer Safety for Babies
Get instant access here:
“For Colorado families, summer safety means paying attention to both the thermometer and the sun.”
The Hidden Danger of Strollers
Many parents assume a stroller provides adequate protection from the sun.
Unfortunately, strollers can become surprisingly warm, especially when airflow is restricted.
One common practice that deserves special attention is covering a stroller with a muslin blanket.
While this may seem like a good way to create shade, research has found that covering a stroller can significantly reduce airflow and increase heat buildup inside the stroller. Temperatures beneath a covered stroller may rise quickly, even on relatively mild days.
In one study, temperatures inside a stroller covered with a blanket rose by nearly 40°F (22°C) within 90 minutes, despite the stroller being placed in the shade. While a muslin blanket may create shade, it can also trap heat and reduce ventilation, creating a much warmer environment for a baby than many parents realize.
Even without a blanket, temperatures inside a stroller can be significantly warmer than the surrounding air, particularly when exposed to direct sunlight and limited airflow.
Shade matters.
But ventilation matters too.
Consider:
Using a stroller shade designed to allow airflow
Choosing shaded walking routes
Avoiding walks during the hottest part of the day
Checking your baby's temperature frequently
Taking breaks indoors when temperatures rise
In Colorado, I often recommend avoiding extended stroller outings once temperatures climb above about 80°F, especially in direct sun.
Think Twice About Outdoor Workouts
Summer is often not the best time for activities that require babies to remain confined to strollers, car seats, or carriers for extended periods.
This includes some outdoor fitness classes, exercise groups, and social gatherings.
This is especially important during Colorado summers. While an adult participating in an outdoor fitness class can move into the shade, remove layers, drink water, or leave when they become uncomfortable, babies often remain confined to a stroller or car seat for the duration of the activity.
On a 75–80°F day, surfaces exposed to direct sunlight can become much hotter than the air temperature. A stroller parked in the sun may quickly become an uncomfortable environment for a baby who has limited ability to cool themselves.
By the time an adult begins feeling hot, a baby may already be experiencing heat stress.
Adults can:
Move into the shade
Remove layers
Drink water
Recognize signs of overheating
Babies have far fewer options.
If an activity requires your baby to remain stationary in direct sun or hot conditions, consider whether a cooler time of day or indoor alternative may be more appropriate.
For many Colorado families, early mornings are significantly safer and more comfortable than afternoon outings.
A baby sitting in a stroller in direct sun is not experiencing the same temperature as the adult pushing the stroller.
Looking for a Cooler Alternative?
During Colorado's hottest months, many families choose indoor activities that allow both parent and baby to stay comfortable.
My Women's Health + Prenatal Yoga and Yoga with Baby classes are held in a comfortable air-conditioned space and combine movement, education, and community designed specifically for mothers and babies.
A Better Summer Alternative
For many Colorado families, summer is a wonderful time to enjoy early morning walks before temperatures rise.
Morning outings often offer:
Cooler temperatures
Lower UV exposure
Greater comfort for both parent and baby
Less risk of overheating
When temperatures begin climbing into the 80s and 90s, indoor air-conditioned activities may be a safer and more comfortable choice than spending extended periods outdoors.
This is especially true for young babies who would otherwise spend much of the activity confined to a stroller, car seat, or carrier.
There will be plenty of opportunities for outdoor adventures as your child grows. During the early months, choosing environments that prioritize your baby's comfort and safety is often the better option.
If you're looking for movement and community during the summer months, consider activities that allow both you and your baby to stay cool, comfortable, and appropriately supported.
Car Seats and Summer Heat
Car seats are essential for transportation, but they are not designed for prolonged use outside the vehicle.
Car seats can trap heat around a baby's body, especially during summer.
Before placing your baby in a car seat:
Check buckles and metal components for heat
Feel the seat surface with your hand
Allow a parked vehicle to cool before loading your baby
Use window shades when appropriate
And of course:
Never leave a baby unattended in a vehicle, even briefly.
Vehicle temperatures can rise rapidly, even when outdoor temperatures seem moderate.
Babywearing in Summer
Babywearing can be wonderful for bonding, convenience, regulation, and mobility.
However, it's important to remember that babywearing adds an additional layer of insulation.
In effect, your baby is wearing their clothing plus your body heat.
When a baby is carried against an adult's chest, both bodies generate heat and warm one another. This can be beneficial during cooler weather, but during the summer months it may contribute to overheating for both caregiver and baby.
During hot weather:
Dress baby lightly
Choose breathable fabrics
Seek shade whenever possible
Take frequent breaks
Watch closely for signs of overheating
Both caregiver and baby should be monitored for heat stress.
Remember: Babywearing Is Also Exercise
Babywearing is often discussed as a parenting tool, but it is also a physical activity.
Carrying a baby places additional demands on the body. As babies grow, caregivers may be carrying an extra 10, 15, 20, or even 30 pounds while walking, hiking, shopping, or completing everyday tasks.
For postpartum mothers especially, this matters.
Many women underestimate how physically demanding babywearing can be. If you find yourself becoming overheated, short of breath, excessively fatigued, dizzy, or exhausted while babywearing, it may be a sign that your body needs more rest, shorter outings, cooler conditions, or a more gradual return to activity.
And remember:
If you are hot, your baby is likely even hotter.
If you are feeling exhausted from the effort of carrying your baby, your body may be telling you that you've reached your current limit for the day.
One of the challenges of summer babywearing is that fatigue, dehydration, and overheating can develop gradually. What begins as a pleasant walk may become too much before either parent or baby shows obvious signs of distress.
There is no prize for pushing through.
Shorter walks, more frequent breaks, early morning outings, and indoor air-conditioned activities are often a better choice than extended periods outdoors during Colorado's hottest months.
Babywearing should support both parent and baby—not leave either one struggling to cope with the heat.
How to Dress a Baby in Summer
Many parents hear that babies need one more layer than adults.
While often helpful, that guidance must be adapted to weather conditions.
In summer, babies frequently need fewer layers than caregivers expect.
Choose:
Lightweight fabrics
Breathable materials
Loose-fitting clothing
Wide-brimmed hats when appropriate
Avoid overdressing, especially during:
Naps
Car rides
Babywearing
Stroller outings
When in doubt, check the back of your baby's neck rather than relying on hands and feet, which are often naturally cooler.
Signs of Overheating in Babies
Watch for:
Flushed or red skin
Sweating
Damp hair
Rapid breathing
Fussiness
Unusual sleepiness
Lethargy
Poor feeding
If your baby appears overheated:
Move to a cooler environment immediately
Remove excess clothing
Offer feeds
Seek medical care if symptoms are severe or do not improve
Trust your instincts.
You know your baby best.
Sun Safety for Babies
Babies younger than six months should generally be kept out of direct sunlight whenever possible.
The American Academy of Pediatrics recommends:
Seeking shade
Using protective clothing
Using hats that cover the face and neck
Limiting direct sun exposure
For older babies, sunscreen may be used according to pediatric guidance.
Remember that reflected sunlight from:
Sidewalks
Concrete
Sand
Water
can significantly increase exposure.
This is particularly important in Colorado where UV intensity is naturally higher.
Water Safety
Drowning can happen quickly and quietly.
Even very shallow water can pose a risk.
Important reminders:
Stay within arm's reach at all times
Never rely on flotation devices as a substitute for supervision
Empty kiddie pools immediately after use
Assign a designated adult "water watcher" during gatherings
Plan Around the Heat
One of the simplest summer safety strategies is adjusting your schedule.
Consider:
Morning walks instead of afternoon walks
Indoor play during heat advisories
Air-conditioned activities on especially hot days
Additional rest during heat waves
Not every summer activity is worth pushing through.
Sometimes the safest choice is simply staying cool.
The Goal Is Comfort, Not Toughness
Many parents feel pressure to maintain normal routines regardless of the weather.
But babies are not meant to tolerate extreme heat.
There is no prize for enduring unsafe conditions.
If your baby seems uncomfortable, fussy, or overwhelmed by the heat, trust that information.
Many Colorado families are surprised to learn that some of the most challenging days for babies aren't necessarily the hottest days on the thermometer. Between our high elevation, intense sunshine, and dry climate, even a pleasant summer day can become uncomfortable for a baby who is confined to a stroller, carrier, or car seat.
Summer can be a wonderful season for families.
A little planning, flexibility, and attention to your baby's comfort can help ensure it stays that way.
Looking for More Summer Resources?
If you found this article helpful, I've put together a collection of evidence-informed resources to help families navigate summer in Colorado and beyond.
You'll find articles on:
Staying cool during pregnancy and postpartum
Hydration during pregnancy and postpartum
Pregnancy fatigue and exhaustion
Summer safety for babies and young children
Explore the full Summer Wellness Collection here:
☀️ https://anne-catherine-perinatal-yoga-doula.kit.com/90d0b77a42
Looking for More Support?
Whether you're pregnant, postpartum, or navigating life with a new baby, remember that caring for yourself is part of caring for your child.
My classes and Learning Library are designed to provide practical education, evidence-informed guidance, and community for families during these important years.
You don't have to figure it all out alone.
Need More Personalized Support?
Every family is different.
If you'd like individualized guidance for pregnancy, postpartum recovery, babywearing, core and pelvic floor health, or returning to exercise, I offer:
• In-home private yoga sessions
• Postpartum doula support
• Women's Health + Prenatal Yoga
• Yoga with Baby classes
Together we'll create a plan that meets your unique needs and goals.
LEARN HOW DOULA CARE CAN SUPPORT YOU AFTER BABY ARRIVES
References
American Academy of Pediatrics (AAP). Sun Safety and Heat Safety Guidelines for Infants and Children.
Centers for Disease Control and Prevention (CDC). Heat and Children Safety Guidance.
Environmental Protection Agency (EPA). UV Radiation and Elevation.
National Highway Traffic Safety Administration (NHTSA). Child Safety and Hot Cars.
Swedish Research Institute Study on Covered Strollers and Heat Accumulation.
