In the mountains, a good day out begins before the first step. Planning a route, checking the weather and deciding in advance what will prompt a change of plan helps keep a hike enjoyable, even when conditions change.
Choose a route that suits the group
Elevation gain, distance and estimated walking time do not tell the whole story. Also consider the terrain, exposed sections, stretches off the trail, maximum altitude and options for shortening the route. A suitable route leaves a margin: for breaks, a navigation error, a slower pace than expected or deteriorating weather.
Before setting off, share a simple plan with someone who will remain contactable: your starting point, whether it is a loop or an out-and-back route, your expected return time and your alternative if you change your objective. On the trail, keep your map within reach rather than at the bottom of your pack. A digital track is useful, but it is no substitute for reading the terrain or having enough battery power.
Read the forecast to make decisions, not just for reassurance
The temperature in the village, wind on a ridge, midday cloud and thunderstorm risk all affect the effort required and the risks involved in different ways. Consult a forecast specific to the mountain range and altitude, such as the mountain forecast from Météo-France, then check how conditions will develop hour by hour.
Ask yourself-three practical questions: by what time--must you be clear of exposed areas; what happens--if wind or rain arrives earlier; and what sign observed on the ground will prompt you to turn-back? That last question helps you avoid second-guessing yourself-when it is already too late.
Write down your plan B before setting off
Having a plan B does not mean that plan A is a bad choice. It means the decision is already easier when visibility drops, a child gets tired or the sky changes. It could be a lower-level loop, an out-and-back walk to a mountain hut, a viewpoint within easy reach or a short walk in a valley.
Note the triggers for changing plans: a time limit, excessive wind, rapidly building cloud, persistent rain, flagging energy or uncertainty about the route. If any of these criteria is met, switch to plan B rather than trying to salvage the original objective.
The evening before and the morning of your hike: a brief but decisive check
The evening before, prepare your pack, water, a warm layer, rain protection and a torch. In the morning, check the weather again, the condition of roads or any lifts you plan to use, and your actual departure time. Setting off a little earlier is often the simplest way to avoid heat, crowds and unsettled weather late in the day.
The mountains rarely reward rushing. Clear preparation gives you the freedom to adapt your outing without frustration: the aim is to return with energy to spare, a better understanding of the terrain and the desire to head out again.
Frequently asked questions
Should you-cancel whenever the forecast is uncertain?
Not necessarily. Uncertainty should prompt you to adjust your choice of terrain, timing and safety margin. A short, low-level loop that is easy to cut short may still be a sensible choice when a ridge or summit is no longer suitable.
What plan should you share with someone close to you?
Give them your starting point, main route, a fallback option, the number of people in your group and a realistic return time. Let them know if the plan changes too: this simple information is more useful than a track with no explanation.
Adapt your plan to the season
A route that is reasonable in summer is not automatically suitable in spring: lingering snow, mountain streams and waterlogged ground can change a familiar stretch of trail. Before setting off, check the day's conditions rather than relying on a track or a memory. Our guide to heading into the mountains in spring covers the key checks to make when the terrain is changing quickly.