Short answers about what Bergradar calculates and how to set it up.
On the start page, click Upload GPX file and pick the file. Up to 5 MB, .gpx extension.
Bergradar then asks for the activity, start time, pace and point spacing. The activity starts on hiking — it is not guessed from the file, so change it if you are riding.
The pace, by contrast, is taken from the file when every point carries a timestamp. If even one is missing, the activity's default applies instead.
A weather forecast is about a place. Your route is not one.
Bergradar calculates for every kilometre of your route — with the estimated time you arrive at that particular point. Leaving at 09:00 means reaching the climb at km 40 around midday, and what counts there is the midday weather, not the morning weather at the start.
That produces sentences a single-point forecast cannot: when you ride into the rain, where the wind turns into your face, whether you finish before dark.
Four: hiking, trail running, road bike and MTB/gravel.
The choice changes three things:
From your pace and the route's elevation profile.
A single pace for the whole tour would be wrong in the hills. So Bergradar works segment by segment, with the gradient: your number holds on the flat, uphill is slower, downhill faster again. When the analysis says gradient-adjusted, that is what it means.
The difference is not small — on a 108 km gravel loop it comes to nearly an hour, and that hour is the whole point when a warning says you meet the thunderstorm at the summit.
That the number is calculated, not reported.
Normally Bergradar reads cloud cover by altitude straight from the weather model — for nine pressure levels, roughly 150 to 4300 metres. That describes the column of air above the route and tells each point how much cloud sits at its own height.
When that profile is unavailable, Bergradar falls back to an estimate from temperature and dew point. It is labelled as an estimate and drawn hatched, because it can be a good hundred metres out.
Both are forecasts, not a look out of the window.
Because on some days no start time works — and then silence is more honest than a ranking.
Bergradar checks the start times daylight actually leaves. If every one of them meets a thunderstorm on the route, there is no winner. Crowning the least bad hour would be claiming it is a reasonable choice.
What you get instead is the arithmetic behind the refusal: when the front passes, how long the route takes, when the last start in daylight would have been. For instance: Thunderstorms from 14:00 to 16:59, the route takes 9 h 32 min — the last start in daylight would have been 11:05.
And if either of the next two days has a window, it is named alongside. Bergradar does not look further than that: a thunderstorm forecast that far out is not something to plan around.
From CAMS, the European air quality model, which Bergradar queries for the points along your route. That is a forecast on a grid of roughly 11 kilometres — not a reading from a pollen trap nearby.
Which is why the wording is soft: the pollen model expects …, never it is high.
The notice appears for ragweed from about 50 grains/m³. So that it does not blink on and off between model runs, it only disappears again below 40 — getting in costs more than staying in.
If this does not concern you, it can be switched off in the settings, under Display.
Because it is. A weather model blurs with every day of lead time, and Bergradar does not pretend otherwise.
In practice: for today and tomorrow, statements about particular hours and kilometres carry weight. For the day after, they describe the character of the day rather than its course.
So when a day has no window, Bergradar suggests another one at most two days ahead. The third would be a number still due to change — and advice that changes quietly is not advice.
In three places, and the most specific one wins:
The analysis states which of the three it used. Clearing the pace on a tour returns you to the profile value; that is what back to profile means there.
On the route card, open Check another day or time, set the date and time, recalculate.
The form stays open afterwards. Trying one start time usually means trying several, and having to reopen it each time would be one click too many.
If you would rather not guess, let it search: the start-time finder checks the hours the day allows and names the best one — or says there is none today.
Collections are your own folders for tours — by region, by season, by plan. They change nothing about a route's visibility.
Visibility is a property of the tour itself. Newly uploaded routes are private: only you see them. Under My tours, a route can be made public from its menu — it then gets a permanent, readable address and appears in the catalogue.
Photos do not follow. Making a tour public makes no photo public; each one is submitted separately afterwards.
As little as the analysis needs:
Weather, air quality and map data come from external services and are cached, not tied to you.
The full version, with legal bases and recipients, is in the privacy policy.
Under Settings, at the bottom. Your current password is required — an unattended session alone should not be able to delete an account for good.
What then happens:
In the backups, the data disappears as those expire — within eight weeks at the latest.
Under Settings → Download my data. You get a JSON file with everything stored against your account: profile and settings, your tours, collections and favourites.
Weather and map data are not included — they come from external services and are not yours; they are queried for your route.