Cycling and Hiking in Summer: How to Enjoy the Heat Without Suffering Through It
Summers keep getting hotter, but the urge to walk or cycle hasn't cooled off one bit. Does that mean giving up the trails as soon as the thermometer climbs? Not at all — a few simple habits are all it takes. Here's how to keep hiking and cycling all summer long, in the best possible conditions.
Can you really hike or cycle during a heatwave?
Yes — as long as you adapt your timing, your terrain and your pace. And no, not during the hottest hours of the day, or once a red heat-alert is issued. It's that simple. Heat doesn't rule out a good itinerary; it just calls for a bit of strategy. Millions of walkers and cyclists get through summer every year without a hitch, because they've grasped one thing: in summer, it's not performance that counts, but the pleasure of keeping going comfortably.
The real risk isn't the heat itself — it's facing it without a plan. Heatstroke can strike during prolonged exertion in the sun, even in young, healthy people, as French public health authorities point out. The good news: a handful of simple habits are enough to avoid it almost entirely. Here they are.
1. Choose the right time: aim for the cool of the morning
The golden rule fits in one sentence: set off early, rest at midday. Between 12pm and 4pm, the sun is at its highest and the ground gives back the heat it has stored — this is the window to avoid for any physical effort. Instead, favour the coolness of dawn, between 6am and 9am, when the air is easiest to breathe and the trails are quiet. It's also when the light is at its most beautiful.
In practice: prepare the night before with a good night's sleep and a light dinner, have a hearty but easily digestible breakfast (fruit and vegetables rich in water), and build in a long break in the shade around the middle of the day. A nap under a tree is never wasted time — it's the best way to set off refreshed again in the late afternoon.
2. Choose the right terrain: altitude, shade and waterside routes
The best-kept secret of summer is choosing the right route. Three types of terrain stay pleasant even when the lowlands are stifling:
- Altitude. Temperature drops by roughly 0.6°C for every 100 metres of elevation. A mountain range like the Queyras, whose villages sit around 2,000 metres, breathes easy while the towns below are sweltering.
- The waterside. Along rivers and canals, tall trees filter the light and the water cools the air. Flat, shaded towpaths are perfect for cycling away from traffic — like the Vélo Francette in the Mayenne valley or the Marais Poitevin.
- The coast By the ocean, sea breezes temper the air and a swim awaits at the end of every stage, as along the Vélodyssée between Royan and Île d'Oléron.
Conversely, avoid long stretches in full sun, built-up areas, and steep climbs during the hottest hours. It also pays to identify water points along your route in advance — villages, fountains, springs, visitor sites.
3. Stay smart about hydration
Drink before you're thirsty — thirst is already a sign you're behind. Throughout the day, favour small, regular amounts: two or three sips every quarter of an hour beat one large glass every so often. Aim for at least 1.5 to 2 litres for a half-day of activity, more if the heat is intense.
Sweating doesn't just cost you water — it carries off minerals too. Pack a few salty snacks to make up for that, and take note, on the map, of the places where you can refill your bottle. A well-chosen route is one dotted with water points.
4. Protect yourself and cool down
Protect yourself from the sun, and cool down whenever you can. For protection: a hat or cap (or even a damp cloth under your cycling helmet), sunglasses, sunscreen reapplied regularly — don't forget the often-overlooked spots (neck, ears, arms) — and light-coloured, loose, breathable clothing that reflects the heat.
To cool down, one simple gesture makes all the difference: wetting your neck, wrists and temples. Blood flows close to the skin at these points, so cool water there brings your body temperature down within seconds. A misting spray, a damp neck buff, or simply the water from a fountain along the way can make a real difference — the effect is immediate.
5. Adjust your pace and listen to your body
In periods of intense heat, deliberately slow your pace by 20 to 30%. Your heart is already working harder to regulate your temperature — there's no need to chase a personal best on top of that. Settle into gentle, steady effort, take more breaks in the shade, and remember: enjoyment always comes before performance.
Above all, listen for warning signs: headaches, dizziness, nausea or unusual fatigue should never be ignored. If they appear, get into the shade immediately, hydrate and rest. If in doubt, call emergency services (112 in France). Children and older adults deserve extra vigilance.
What activities work best when it's very hot?
When the heat sets in, turn to gentle, water-adjacent activities. A leisurely ride along a canal, a stretch of river by traditional boat, a swim at the end of a stage, an early-morning walk through the forest: that's what a real holiday looks like during a scorching summer. The idea isn't to stay indoors — it's to shift the balance towards slowness and coolness. That's exactly the spirit of self-guided, independent travel: moving at your own pace, stopping when you please, letting the landscape carry you along.
The advantage of a fully organised summer trip
An organised trip turns all these good habits into genuine peace of mind. At Safrantours, itinerant-travel specialists for over 30 years, our routes are designed with the season in mind: well-calibrated stages, shaded or waterside paths, water points already identified, carefully chosen accommodation. We transport your luggage from stage to stage — so you travel light — and support is available 7 days a week. Departures are possible every day from April to October, so you can set off even if the decision comes at the last minute.
In other words: you enjoy the trail, we take care of the rest.
FAQ — Cycling and hiking in summer
-
Is it really cooler in the mountains in summer?
Yes. Temperature drops by around 0.6°C for every 100 metres of altitude. A mountain range with villages sitting around 2,000 metres, such as the Queyras, is therefore noticeably easier to breathe in than the lowlands, with cool nights that make for good rest.
-
Can you cycle in 35°C heat?
Yes, provided you set off early in the morning, shorten your distances, choose shaded routes, hydrate before you're thirsty, and slow your pace. That said, postpone your ride if a red heat-alert is issued for your area.
-
What active holidays work best when it's too hot?
Routes close to water (canals, rivers, coastline) and at altitude, with short stages and regular swims, offer the best balance between staying active and staying cool.
-
How do you recognise heatstroke?
Warning signs include headaches, dizziness, nausea and unusual fatigue. If these appear, get into the shade immediately, hydrate, rest, and call emergency services if symptoms persist.
-
How much should you drink on a summer outing?
At least 1.5 to 2 litres of water for a half-day of activity, in small, regular sips, without waiting to feel thirsty — more in intense heat.
Ready to put these tips into practice this summer? Discover our mountain, coastal and canal-side itineraries