Which side to sit on?
☀️Find the seat with more shade
Tell us your trip
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What Makes SunRide Different
Talk Normal
Powered by AI that understands context — dates, times, cities. Just type naturally.
Works Everywhere
From Tokyo to Toronto. Any route with roads, we calculate the sun exposure.
Lightning Fast
100 points analyzed along your route in under 2 seconds. Precision matters.
Completely Free
No account needed. No data harvesting. Just pure sun avoidance technology.
Dark Mode
Easy on the eyes! Click the moon/sun button at the bottom-right to switch themes.
How SunRide Works
Everything you need to know about finding your perfect shady seat — powered by astronomy, AI, and a hatred of sweaty commutes.
AI-Powered, Human-Verified Logic
SunRide uses AI to understand your natural language queries, but the sun calculations are based on proven astronomical formulas. The AI helps us understand what you want; math tells us where the sun will be.
We use astronomical algorithms (the same math NASA uses!) to calculate the sun's exact position in the sky for any location and time. Combined with your route's direction of travel, we figure out which side of the vehicle gets blasted with sunshine.
Yes! SunRide uses AI LLM engines to understand your natural language queries. Instead of filling out boring forms, just type like you're texting a friend:
The AI extracts the cities, dates, and times — then our sun calculator does the rest.
Pretty accurate, but not perfect. Here's the honest breakdown:
- ✓Sun position: Extremely accurate (astronomical calculations)
- ✓Route precision: We analyze 100 points along your entire route for extreme accuracy — not just start and end
- ✓Route direction: Good accuracy using OpenStreetMap roads
- ~Travel time: Estimates only — traffic, stops, and delays vary
- ✗Window tint/bus type: We can't know your specific vehicle
Think of it as a smart suggestion, not a guarantee. When in doubt, bring sunglasses! 😎
Anywhere in the world! We use OpenStreetMap data for routing, so if there's a road on the map, we can calculate the sun exposure. Works great for buses, trains, cars, and even boats.
Good question! Currently, we calculate based on clear sky conditions. Even on cloudy days, UV rays still penetrate clouds, and the sun can peek through unexpectedly. Our recommendation still helps you pick the generally shadier side.
AI isn't perfect, and neither is our code. If something seems off:
- • Try rephrasing your query with clearer city names
- • Check that the date/time was understood correctly
- • Remember: we're calculating sun position, not predicting the weather!
Found a real bug? We'd love to hear about it — it helps us improve! 🙏
Important Disclaimer
SunRide provides estimates and suggestions based on astronomical calculations and routing data. Results may vary due to traffic, vehicle type, route changes, weather conditions, and other factors beyond our control. This tool is meant to be helpful, not definitive — always use your own judgment and don't blame us if you still end up a little toasty! ☀️
💡 Fun fact: The sun travels across the sky at about 15° per hour. On a 2-hour journey, its position can shift by 30° — that's why our recommendations change along your route!