Your best window to ride
Wind, gusts, precipitation timing, and temperature — scored for cyclists who need to know before they clip in.
Why cyclists need GoWindow
Wind is the headline
A cyclist at 30 km/h faces wind force that scales with the square of speed. A 15 km/h headwind that a runner barely notices can cut your average speed and double your effort.
Gusts matter more than averages
Steady 20 km/h wind is manageable. 20 km/h with 45 km/h gusts is dangerous on a descent or in a crosswind. GoWindow scores gust-to-mean ratio, not just wind speed.
Precipitation timing, not just chance
A 40% chance of rain across the day might mean a dry morning and a wet afternoon. GoWindow shows when rain is expected, so you can ride around it.
What the cycling score weighs
Dominant factor — cycling effort scales non-linearly with headwind.
Peak gusts relative to sustained wind; critical for safety on exposed roads.
Feels-like temperature for a moving body generating high wattage.
When rain enters the window, not just whether it might rain today.
Hours on the bike mean hours in the sun — UV adds up.
Exercise ventilation on the bike is high; poor air hits hard.
When GoWindow helps cyclists
Choosing a morning ride before afternoon gusts build on an exposed route
Deciding whether a windy day is still rideable or genuinely unsafe
Finding a 2-hour gap between rain bands for a lunch ride
Checking tomorrow's forecast to set an early alarm for a long ride
From the blog
AQI and your lungs: what the air quality number means when you're running
When you run, you breathe ten to twenty times harder than at rest. That changes how air pollution lands in your body. Here's what runners should actually do with the AQI number.
Why Timing Matters More Than Temperature
Most people check the temperature before heading out. The best outdoor sessions depend on a narrow window where several conditions line up — not on one number.