Discovering...
October to April is the window — warm days, cold starry nights, and manageable crowds. Here is what every month is actually like, so you can plan with confidence.
Omar Benali· Sahara & Southern Routes Editor
A former desert driver turned writer, Omar has guided and travelled the routes from Ouarzazate to Merzouga and Zagora for years. He writes about the Sahara, kasbah roads and the Draa and Dades valleys. Ouarzazate · 14+ years covering Morocco
Published 20 December 2025 Last updated 17 April 2026
The short answer: October, November, March and April are the best months to visit Merzouga and the Erg Chebbi dunes. Daytime highs sit between 24 and 32 °C, nights are genuinely cold (which makes the stargazing extraordinary), and you can ride a camel across the dunes at sunset without suffering.
The Sahara is one of those places where timing is not just a preference — it is the difference between an unforgettable night under a blazing sky and an afternoon where you genuinely cannot step outside between noon and 5 pm. Summer heat in Merzouga is not just uncomfortable; in July and August it regularly hits 47 °C on the dunes. That said, even the shoulder months have their quirks, and winter can catch people off guard with night-time temperatures that drop to just above freezing.
This guide breaks down every month in specific, honest terms — temperatures, crowd levels, what the experience is actually like on the ground.
Indicative temperature ranges. Actual conditions vary year to year.
| Month | Day °C | Night °C | Crowds | Verdict |
|---|---|---|---|---|
January – February | 16–20 °C | 2–6 °C | Moderate | Excellent |
March – April | 24–30 °C | 8–14 °C | High | Peak sweet spot |
May | 32–37 °C | 16–20 °C | Moderate | Good (early May only) |
June – August | 40–48 °C | 24–28 °C | Low | Avoid if possible |
September | 36–40 °C | 20–24 °C | Low-Moderate | Transition month |
October – November | 26–32 °C | 10–16 °C | High | Peak sweet spot |
December | 18–22 °C | 4–8 °C | Moderate (high Christmas week) | Very good |
Temperatures and crowd data are one thing; what the experience feels like is another.
Excellent
Clear blue skies, brisk nights perfect for stargazing. Pack a real warm layer — desert nights in January can drop to just above freezing. Occasional sandstorms possible but generally excellent conditions for camel trekking and camp stays.
Peak sweet spot
The single best window in the year. Daytime temperatures are warm without being brutal, the light is extraordinary for photography, and desert wildflowers occasionally appear around the edges of the erg after winter rains. Book accommodation early — this is the busiest period.
Good (early May only)
Temperatures climb fast. Early May is fine; late May already pushes 38–40 °C by midday. If you travel in May, plan the camel trek for late afternoon and avoid the midday sun entirely.
Avoid if possible
Temperatures regularly hit 45 °C and above. The dunes radiate heat even after dark. Camel treks become genuinely uncomfortable and potentially dangerous. Some camps close; those that stay open reduce operations to early morning. Only consider this window if the summer months are your only option — then push all activities to dawn.
Transition month
Still hot, especially early September. By late September the edge comes off and the conditions improve noticeably. Travelling in September can mean bargain camp rates and emptier dunes — worth considering if you can time your trip for the final week of the month.
Peak sweet spot
Mirror image of March–April. The heat is gone, the light is golden and long, and the cooler nights make sleeping in the camp tent genuinely comfortable. October is arguably the single best month: warm enough to ride camels in a t-shirt, cold enough to need a blanket. The Merzouga Music Festival sometimes falls in early November.
Very good
Short days but superb clear skies. Temperatures are cool and pleasant for trekking; the stars are outstanding. Christmas and New Year weeks see a spike in crowds and camp prices — book well ahead if you are travelling then. Snow has been recorded on the dunes in very rare winters.
Merzouga sits roughly 9 hours south of Fes and 8 hours from Marrakech by road — there is no train and no direct flight. Most travellers arrive as part of a multi-day circuit.
| Option | From Marrakech | From Fes | Notes |
|---|---|---|---|
| Private tour vehicle | ~8–9 hrs with stops | ~8–9 hrs with stops | Most comfortable; flexible pace; guide included |
| CTM / Supratours bus | 9–11 hrs | 8–10 hrs | Budget option; overnight buses available; no flexibility on stops |
| Self-drive rental car | ~7–8 hrs (no stops) | ~7–8 hrs (no stops) | Roads are paved and good. GPS essential. Fuel up in Erfoud. |
| Shared grand taxi | Via multiple legs | Via multiple legs | Cheapest but exhausting; requires changing taxis in Ouarzazate and Erfoud |
Most travellers find that a private guided vehicle — whether booked as a 3-day Marrakech-to-Fes circuit or as a dedicated Merzouga trip — is the easiest way to handle the long distances, stops at the gorges and kasbahs, and the camp logistics in one smooth arrangement.
October and March are generally considered the optimal months for Merzouga. Both offer daytime temperatures in the mid- to upper-twenties Celsius — warm enough for a comfortable camel trek in a light shirt, cool enough to enjoy the dunes at midday. Nights are cold but not freezing, making the stargazing experience genuinely magical. If you can only visit once, aim for the second half of October or the first two weeks of April, when light, temperature and crowd levels are best balanced.
Honestly, yes — for most travellers. Daytime temperatures in July and August regularly reach 45–48 °C in the Erg Chebbi dunes, and even sunset camel treks can be stifling because the sand radiates stored heat hours after the sun drops. The camp experience also suffers: canvas tents do not cool down quickly. If summer is your only window, time every outdoor activity for the crack of dawn (6:00–8:30 am) and stay in air-conditioned accommodation during the afternoon. Otherwise, genuinely consider re-timing your trip.
Yes, but extremely rarely. Snow has fallen on the Erg Chebbi dunes a handful of times in recorded history — most recently during exceptional cold snaps in winters. When it happens, it typically melts within hours as the sun rises. More commonly, the surrounding Tafilalet plain and the hills towards Erfoud can see frost or light ice on January nights. The phenomenon is more of a curiosity than a planning concern; the bigger cold-weather issue in winter is the overnight temperature, which can drop to 1–3 °C inside unheated tents.
December daytime highs in Merzouga typically range from about 18 to 22 °C — comparable to a mild autumn day in southern Europe. Nights are cold, frequently dropping to 4–8 °C, occasionally lower in late December. The upshot is that the dunes are very comfortable to walk and you will sleep under a proper blanket in the desert camp. Days are shorter (sunset around 17:30), so the evening camel trek happens earlier. Pack a warm mid-layer and a wind-resistant outer shell.
You can, and in some ways it is a fascinating time to visit — the camp fires burn brighter and the communal iftar (breaking of the fast) meal at sunset takes on real meaning. Practical points to know: restaurants and cafés in Merzouga village may be closed during daylight hours, and some local guides and camel handlers may be moving at a slower pace while fasting. A private guided tour handles all the logistics for you and can ensure your food and water access during the day. The dunes themselves are no different, and off-peak Ramadan weeks often mean quieter camps.
Even in summer, pack at least one warm layer — desert temperature swings are dramatic. In winter (November to February), bring a proper fleece or down jacket and wool socks. Year-round essentials include a headscarf or buff against blowing sand, closed-toe shoes for the camel trek (sandals are uncomfortable when sand gets inside), a torch or phone torch, sunscreen, and a reusable water bottle. Camps provide bedding, so a sleeping bag is not needed in most seasons. Leave your main luggage in the vehicle or at your hotel — you only need a small bag for the overnight.
For peak windows (late March to mid-April, October, and Christmas–New Year week), book at least 6–8 weeks ahead for a good-quality luxury or mid-range camp. Standard camps fill up faster than people expect because the number of decent options near the dunes is limited. Travelling in January, February or September means you can often arrange things a week or two in advance. A private guided tour typically includes camp booking as part of the package, which removes the coordination burden entirely.
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