Know the weather before you leave.

A normal weather app tells you what the sky is doing over your town right now, which is no use when the interesting part of the trip is four hours away in the mountains. Wayther works out what the weather will be doing at every point along your route, at the exact hour you will be driving through it. Set a departure time and a route, and the forecast is timed to your journey rather than to the clock on the wall.

Move the start time and the whole route is recalculated. Wayther shows how much of the trip will be in daylight, how much at night, and where the rain, wind and low visibility sit. Sliding the departure forward often moves the storm out of your way entirely, and you can see exactly when that happens.

Plan the route first, then let the forecast decide when you drive through it. Pick a starting point and a destination, then move the departure time: Wayther recalculates the route weather for every point at your new arrival times, so you can watch a storm slide off your miles. When the timing cannot be fixed, compare the alternative routes and take the one that goes around the bad weather instead of through it. Repeat that for each day of a multi-day trip. The whole sequence, in order, is on the planning page.

Wayther plans up to 10 days ahead, which covers everything from tomorrow’s commute to a long-haul booked weeks in advance. The useful range depends on the forecast itself: the further out you look, the more the picture is a general expectation than a precise hour.

Yes. Wayther offers the main alternatives for a trip side by side, each with its own travel time, distance and forecast, so you can take the route that goes around the weather rather than through it. Sometimes the second route is also the faster one.

Very much so. High winds and gusts are shown along the whole route, which matters when you are driving a tall vehicle or towing a trailer and a rollover risk is a real cost. Temperatures, heavy precipitation and poor visibility are flagged too, so you can plan a mountain pass or a coastal stretch around the worst of it.

Yes. Rain, wind, gusts, visibility and temperature are all timed to the moment you reach each part of the route, which is what actually matters on a bike. Wind is shown with its direction, so you can tell whether a long stretch will be a tailwind or a hard fight against it.

The map view draws your route with the conditions marked on it. The summary view gives the whole trip in one screen, with charts for wind, precipitation, visibility and temperature plus the split between day and night driving. The timeline view lists every forecast point in order, with the time, the distance travelled and the full detail for each one. Same trip, three different ways to read it.

The summary calls out the things that actually change a journey: severe weather alerts, high winds and gusts, extreme low and high temperatures, heavy precipitation, poor visibility, and how much of the trip falls in the dark. Sunrise and sunset times are included so night driving is a planned part of the trip rather than a surprise.

Yes. Forecasts are available in every country where Apple Weather is available, which covers most of the world, and you can switch between metric and imperial units at any time.

You can try a random route with every feature available — the map, the summary, the timeline and the departure time slider — so you can see exactly how the app works before spending anything. Setting your own precise route, with the starting point and destination you choose, is what the subscription unlocks.

Wayther is a planning app, so it is built to be read before you set off and then glanced at from the passenger seat or at a stop. It is not a navigation app: keep using your maps app for turn-by-turn directions, and always follow official weather warnings and road closures.

A connection is needed to download the map and fetch the forecast, since both come from Apple. Once a route is loaded, the trip you planned is still on screen, so you can refer back to it in an area with no signal.

Yes. Wayther does not collect personally identifiable information, does not sell or rent your data, and routes are not tracked or built into a profile of where you go. Read the full privacy policy for exactly what is collected.