Summer Flying: Heat, Storms and Bumpy Afternoons
2 min read
The short answer
Summer flights can feel bumpier, especially in the afternoon, because the sun heats the ground and the air rises unevenly. It's uncomfortable but harmless. Pilots plan around heat by calculating every take-off, and they fly well clear of thunderstorms using weather radar.
Why Summer Feels Bumpier
On a hot day, the sun warms the ground. Warm air rises in invisible columns, a bit like bubbles in a pan of water. Flying through them low down feels like a bumpy road.
These bumps are strongest in the afternoon, when the ground is hottest, and mostly near the ground. Once the plane climbs above them, the ride usually smooths out.
How Pilots Handle the Heat
Hot air is thinner than cool air. Wings and engines have a little less to work with, so the plane needs a longer take-off run.
That's why pilots calculate every take-off using the temperature, the runway and the plane's weight. On very hot days, airlines sometimes carry a little less weight to keep a comfortable margin. It may mean a short delay — never a shortcut.
Thunderstorms
Summer is storm season in many places. Pilots treat storms with great respect:
- They see storms on weather radar in the cockpit and fly well around them.
- Air traffic control helps reroute planes.
- If a storm sits over an airport, planes wait, circle or land somewhere else until it passes.
Read how pilots navigate weather.
Tips for a Smoother Summer Flight
- Morning flights often meet calmer air than afternoon ones.
- Choose a seat over the wings for the steadiest ride.
- Keep your seatbelt fastened whenever you're seated.
- Drink water — summer cabins and airports can be warm and dry.
The Takeaway
Summer bumps are simply warm air on the move. The heat is measured, storms are avoided, and the plane is built for every bit of it.
Sources
- Anchorage Daily News / AP (August 2026), Rising temperatures could keep more flights from taking off on time — hot air, take-off calculations and reducing weight: https://www.adn.com/alaska-news/aviation/2026/08/05/rising-temperatures-could-keep-more-flights-from-taking-off-on-time/
- SKYbrary, AC 00-24C Thunderstorms (FAA guidance on thunderstorm avoidance): https://skybrary.aero/bookshelf/ac-00-24c-thunderstorms
- FAA, Turbulence — keeping your seatbelt fastened: https://www.faa.gov/travelers/fly_safe/turbulence
Keep reading
Understanding Turbulence
What turbulence actually is, why it happens, and why it's uncomfortable but not dangerous.
How Pilots Navigate Weather
How pilots plan around rain, storms, turbulence and ice — and why weather is never a surprise.
Clear-Air Turbulence: Bumps in a Blue Sky
Why a plane can bump in perfectly clear sky, how pilots plan around it, and why it's about comfort rather than danger.