Merzouga records about 78mm of rain across roughly 6 wet days a year, which is a 2% chance on an average day. November is the wettest month at 8mm (10% of the annual total) and July the driest at 0mm. Local rain type: brief showers. Merzouga on the Sahara's edge is extremely dry. When rain does fall (rarely), the desert briefly blooms — an extraordinary sight.
Chance of rain on an average day: 2%
Rainfall climatology for Merzouga. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 78mm |
| Rain days per year | 6 |
| Odds on an average day | 2% |
| Wettest month | November — 8mm over 1 days |
| Driest month | July — 0mm over 0 days |
| Rain type | brief showers |
| Best dry window | October through April offers comfortable desert temperatures. |
| Worst rain window | June through August brings extreme heat (50°C+) — sandstorms are more common than rain. |
November delivers 800% more rain than July (8mm vs 0mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 10% of the annual total, so rain in Merzouga is spread through the year — there is no season you can rely on being dry.
Merzouga rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 1 days in November against 0 in July — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 3mm | 1 | 3% | 18°C |
| February | 3mm | 1 | 3% | 18°C |
| March | 5mm | 1 | 3% | 22°C |
| April | 5mm | 1 | 3% | 27°C |
| May | 5mm | 1 | 3% | 33°C |
| June | 1mm | 1 | 3% | 38°C |
| July | 0mm | 0 | 0% | 42°C |
| August | 0mm | 0 | 0% | 42°C |
| September | 1mm | 1 | 3% | 38°C |
| October | 5mm | 1 | 3% | 33°C |
| November | 8mm | 1 | 3% | 27°C |
| December | 6mm | 1 | 3% | 22°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Merzouga we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Merzouga records rain on roughly 6 days a year — about a 2% chance on any given day — totalling around 78mm.
November, with about 8mm over 1 rain days. That is 10% of the entire year's rainfall in a single month.
July is the driest month at 0mm across roughly 0 days. October through April offers comfortable desert temperatures.
Merzouga on the Sahara's edge is extremely dry. When rain does fall (rarely), the desert briefly blooms — an extraordinary sight.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.