Which Side Should You Sit on to Avoid the Sun?
The one question every road tripper forgets to ask — until they're squinting for 200 miles. Here's how Sit In Shade solves it for you in seconds.
Why Sun Exposure During Travel Matters
You might not think much about it, but sitting on the wrong side of a bus, train, or car for a couple of hours can leave you with uneven tans, headaches, and real UV damage — even through glass.
Route-Based Solar Analysis
Sit In Shade doesn't just guess. It calculates the sun's exact position relative to every turn and straightaway on your route, using real astronomical data for your specific travel date and time.
Left or Right — No More Guessing
After crunching the numbers for your entire route, we tell you the simple answer: sit left, or sit right. You also get the exact percentage of sun exposure on each side, so you can see for yourself.
How Sit In Shade Actually Works
Enter Your Starting Point and Destination
Just type where you're leaving from and where you're headed. Our search uses geocoding to find the exact coordinates — whether you type a full address, a city name, or even a landmark. You can also drop pins directly on the map, or hit "My Location" to use GPS.
Set Your Travel Date and Time
This is the part most people underestimate. The sun's position in the sky changes dramatically depending on the time of day, the time of year, and your latitude. A morning drive heading east is completely different from an evening drive on the same road. That's why we ask — so we can run precise solar calculations for your exact departure time.
See Your Personalized Recommendation
Once you hit "Find Best Seat," the system traces the driving route between your two points, calculates the sun's azimuth and elevation at every point along the way, compares it to the direction of travel, and tells you which side of the vehicle gets hammered with sunlight — and which side stays in the shade. The whole thing takes about two seconds.
Explore the Color-Coded Map
Your route lights up on the map in three colors. Orange segments mean the sun is hitting the left side. Blue means the right side is getting sun. Grey means the sun is below the horizon or directly ahead — so it doesn't matter which side you sit on. It's a visual way to understand exactly where along your route the sun will be a problem.
Why Picking the Right Seat Is More Important Than You Think
Let's be honest — most of us just grab whatever seat is available and don't think twice about it. But if you've ever been stuck on the sunny side of a long bus ride, you know the feeling. The heat builds up. You start sweating. The sun glare makes it impossible to look at your phone or read. Your arm turns red. And by the time you arrive, you feel drained.
Here's something a lot of people don't realize: standard car and bus windows do not block UVA rays. UVB — the kind that causes sunburns — is mostly filtered by glass. But UVA rays, which penetrate deeper into your skin and are the primary driver of premature aging and melanoma risk, pass right through. That's why dermatologists have documented cases of truck drivers with dramatically more sun damage on the window side of their face after years of driving.
It's not just about comfort. It's a genuine health consideration, especially for people who commute daily, take long-distance buses, or travel frequently by train. And the fix is dead simple — just sit on the shady side. That's exactly what Sit In Shade is built to figure out for you.
The Science Behind the Tool
Behind the clean interface, there's actually a fair bit of math happening. When you submit a route, our system does three things:
First, it fetches the actual driving route between your two locations — not a straight line, but the real road path with every curve, turn, and highway merge. This gives us a detailed list of GPS coordinates that your vehicle will follow.
Second, it calculates the sun's position in the sky at each point along that route. The sun calculator uses established astronomical formulas to compute two things: the solar altitude (how high the sun is above the horizon) and the solar azimuth (which compass direction the sun is in). These values change constantly as you move along the route, because both your location and the time are changing.
Third, at each segment of the route, it compares the sun's compass bearing to the vehicle's compass bearing (the direction you're driving). If the sun is to the right of your direction of travel, segments get tagged as "sun on the right." If it's to the left, "sun on the left." If the sun is below the horizon — because it's nighttime or dusk — it's labeled "no sun."
At the end, the system tallies everything up and gives you the percentages: how much of your drive has sun on the left, how much has sun on the right, and how much is sun-free. The side with the lower percentage of sun exposure is the one you should sit on. Simple as that.
Who Is Sit In Shade For?
Honestly? Anyone who sits in a vehicle by a window. But here are the people who tend to love it the most:
☀️ Practical Tips for Sun-Smart Traveling
Even when you've picked the right seat, there are a few extra things you can do to make your journey more comfortable:
Frequently Asked Questions
Is Sit In Shade free to use?
Yes, 100% free. There are no ads, no sign-ups, and no paywalls. Just enter your route and get your answer.
Does this work for trains and buses, or only cars?
It works for any vehicle that follows a road or rail route. The tool traces the driving path between two points, and the sun analysis applies to any vehicle on that path — buses, cars, vans, rickshaws, whatever you're in.
How accurate is the sun position data?
Very. We use established astronomical algorithms (based on Jean Meeus's formulas) to calculate the solar altitude and azimuth. These are the same formulas used by weather services and professional sun-tracking applications. The accuracy is well within 1 degree for any typical travel scenario.
Can I install Sit In Shade on my phone?
Yes! It's a Progressive Web App (PWA). On most phones, you'll see an "Install App" button, or you can use your browser's "Add to Home Screen" option. Once installed, it works and feels just like a native app.
Does it consider the time of year?
Absolutely. The sun's path changes significantly between summer and winter. In winter, the sun stays low in the sky and shines through side windows much more aggressively. In summer, it's higher and hits less directly. The tool accounts for all of this — just set the correct date.
What does the color-coded route mean?
Orange sections mean the sun hits the left side of the vehicle. Blue means the sun hits the right side. Grey means the sun is either below the horizon or directly ahead/behind — so both sides are equally shaded. It's a quick visual way to understand your entire route at a glance.
Do I need to create an account?
No. There's no account, no login, no data collection. Your route data is processed in real-time and isn't stored anywhere. We believe simple tools should stay simple.
Ready to Find Your Perfect Seat?
Scroll back up, enter your route, and let Sit In Shade do the rest. It takes about 10 seconds — and it might just save you from a very uncomfortable ride.