Summer opens the best trails — and brings the season’s real danger, which isn’t bears or blisters but heat. Hot-weather hiking is wonderful with preparation and genuinely risky without it. Here’s how to enjoy the sun-drenched miles safely.

Respect What Heat Does

Heat exhaustion sneaks up: heavy sweating, dizziness, nausea, headache. Ignored, it can escalate to heat stroke - a true emergency. Knowing the signs keeps a hard day from becoming a dangerous one.

Timing Beats Toughness

Start at dawn and be descending by late morning, or hike toward evening. Midday summer sun is for shade and lunch, not exposed switchbacks. The mountain doesn’t care how tough you are at 2pm.

Hydration Math

Carry a half-liter per hour minimum in heat - more on exposed climbs - plus electrolytes for hikes over ninety minutes. Drink on schedule, not just thirst. Water weight is the cheapest insurance you’ll ever carry.

Dress for the Furnace

Lightweight, light-colored, loose layers; a real brimmed hat; sunscreen reapplied. UPF fabrics beat bare skin in exposed sections. Cotton that soaks and clings is a liability - synthetics and merino breathe.

Choose Trails Wisely

Summer favors shaded canyons, tree-covered climbs and waterside routes over exposed ridgelines. Check for water sources and cell coverage; tell someone your plan. The best summer hike is the one planned around the sun.

Summer trails reward the prepared: dawn starts, scheduled sips, sun-smart layers and shade-wise routes. Respect the heat like the real hazard it is, and the season gives you its glorious mornings without the scary afternoons. Hike early, drink often, summit happy.