Tailwind KOMpass is a web app for road cyclists who chase Strava personal records, KOMs and QOMs. It overlays live and forecast wind on a map of Strava segments, scores every segment by how much tailwind it gets, and tells you when the wind on the segments you care about is good enough to go for a record.

The idea is simple: on most segments, the single biggest factor you do not control is the wind. On flat and rolling terrain, a 20 km/h tailwind is often worth more than 50 extra watts. Tailwind KOMpass turns that into a plan: which segment, which day, which hour, and how much power you will need.

• Wind on the map. Segments are coloured by their signed effective tailwind: the wind component along the direction of travel, positive for tailwind and negative for headwind.
• KOM finder. Filter segments near you by length, speed, popularity and how close your own best time is to the record.
• Power analysis. From your FTP, weight and the segment’s elevation profile, the app estimates your time, the power the record needs, and the tailwind that would close the gap, with a section-by-section pacing plan.
• Alerts. Add segments to a watchlist and get a push notification or email when the forecast wind clears the threshold you set.

Tailwind KOMpass is built and run by an independent developer and cyclist, @thom_hartogg. New features and fixes are published on the changelog. Legal operator details are on the imprint.

• Strava provides segment and activity data, only after you connect your account and only for the scopes you approve. Tailwind KOMpass is not affiliated with or endorsed by Strava.
• WeatherAPI.com provides current and forecast wind.
• MapTiler provides map tiles and the animated wind layer.
• Polar is the merchant of record for Pro purchases and handles invoicing and VAT.

The core product is free: the wind map, a short-range forecast, an unlimited watchlist with alerts, and three full segment analyses a month. Pro is a one-time lifetime purchase (€49 / $59) that unlocks the 72-hour forecast, unlimited analysis and advanced alerts. Arming your first alert starts a free 7-day Pro trial with no card. See pricing for the full comparison.

Strava access tokens are stored on our servers only, never in your browser. You can export all of your data or delete your account at any time from Settings, which also revokes our access at Strava. Analytics are cookieless. The details are in the privacy policy.

Questions, feedback or press: support@tailwindkompass.com. More ways to reach us are on the contact page. Developers can find the public API on the developer page.