For Sahara trips out of Marrakech, October to April is the golden window — comfortable days, cold clear nights and dunes raked by low golden light. July and August are brutal and best left alone.
Planning · Updated June 2026 · 5 min read
Why season matters so much in the Sahara
The dunes most Marrakech travellers head for — Erg Chebbi at Merzouga, Erg Chigaga out past M'Hamid — sit in one of the most thermally extreme environments anywhere. In December and January the days at Erg Chebbi hold a pleasant 15–20°C under hard, bright sun, while the nights plunge to 2–5°C, cold enough to want a fleece and a hat by the fire. Come July, those same crests bake at 45–50°C by midday, and even a short walk in open sun turns into an ordeal.
That swing in temperature dictates the whole experience: whether the camel trek is magical or a slog, whether sunrise over the dunes is a joy or simply a relief, whether you want to be outside at all beyond a narrow window at each end of the day.
The best months: October to April
October through April is the Sahara at its most welcoming and most photogenic — and it lines up neatly with the comfortable months for the long drive south from Marrakech. Autumn (October–November) gives warm days of 25–30°C and cool nights; the late-October light on the dunes is pure gold and the summer crowds have long gone. Winter (December–February) is, for many seasoned Morocco hands, the peak: cold nights wrapped in blankets by the fire, skies scrubbed clean for stargazing, and dune shadows at sunrise that are simply extraordinary. Spring (March–April) is every bit as good, with the days warming and a chance of wildflowers in the scrub at the camp edges.
- October–November: warm days, cool nights, superb light, thinning crowds
- December–February: cold nights (2–8°C), the clearest skies, fewest visitors, the best desert atmosphere
- March–April: warming fast, pleasant days, the odd wildflower, still comfortable after dark
The shoulder months: May and September
By May the midday figure is creeping toward 35°C — still workable if you start early and save the activity for late afternoon. Most camps run as normal and the dunes are quieter than the spring rush. September swings the other way: the worst of the summer has broken but it stays hot at 35–40°C around midday, with the second half of the month improving sharply.
Both months are perfectly viable with the expectations adjusted. Keep clear of the middle of the day for anything outdoors; sunrise and sunset are still excellent.
When to avoid: June to August
June to August is when a lot of the better camps either shut up shop or pare their operations right back. Midday at Merzouga sits stubbornly above 42°C, climbing to 48–50°C in July. The camel trek shrinks to a 15-minute dash for the dunes rather than anything meditative, and sitting outdoors in the afternoon without shade and water is genuinely risky. If your dates land in high summer, the Atlantic coast or the cool of the High Atlas are far better uses of the time — and both are easy escapes from Marrakech.
- June: warming fast — fine in early June, uncomfortable by month's end
- July–August: avoid for any outdoor desert activity; some camps close
- If you must go: choose a camp with air-cooled tents and generators, and keep all activity to before 9am and after 5pm
Erg Chebbi vs Erg Chigaga: does season choice differ?
The two dune seas follow much the same seasonal pattern. Erg Chigaga, out beyond M'Hamid, lies a touch lower and can run 1–2°C warmer in summer, and its sheer remoteness makes a summer visit even harder to pull off. In the good season (October–April), that same isolation from any road or village is Chigaga's trump card — darker skies and emptier crests, a real edge if you are out to photograph the night sky.