When to Visit Mauritania

January brings some of the most comfortable conditions you will find in Mauritania. Nouakchott's highs reach about 29°C (84°F). Lows drop to a pleasant 16°C (61°F) at night. The air is remarkably dry at 22% humidity. No rain to speak of. The UV index sits at 7. That is still meaningful. It is the lowest you will see all year. This is peak season for desert excursions toward Chinguetti and Terjit. Expect medium visitor numbers by Mauritanian standards.

February is similar to January. The heat starts creeping upward. Nouakchott typically hits 31°C (87°F) during the day. Lows sit around 18°C (64°F). Humidity ticks up slightly to 24%. It still feels decidedly arid. The UV index climbs to 8. There is essentially zero rainfall. It remains a fine month for travel. By the last week you can start to feel the dry season intensifying. Visitor numbers remain moderate.

March is a noticeable shift. Temperatures in Nouakchott push to 31°C (88°F). The real change is humidity. It jumps from 24% to 46% as maritime air asserts itself. A trace of rain appears, around 3 mm. You would barely notice it. The UV index hits 11 for the first time. The sun feels like it has teeth from this point forward. Desert trips are still doable. Get out early. Rest through midday. Fewer tourists now.

April continues the warming trend. Nouakchott reaches 32°C (90°F). Lows hit 20°C (68°F). Humidity holds steady around 47%. The UV index stays pinned at 11. Rainfall drops back to essentially nothing. The Harmattan can make appearances. That dry dust-laden wind from the Sahara reduces visibility. It coats everything in fine grit. Inland destinations like the Adrar Plateau become challenging in the afternoon heat. Visitor numbers are low.

May pushes Nouakchott to 33°C (91°F). That might not sound dramatically hotter than April. The combination of 49% humidity and relentless UV at index 11 makes it feel substantially more oppressive. Nights offer only modest relief at 21°C (71°F). A negligible 3 mm of rain might fall. The coast still has its sea breeze advantage over the interior. Even Nouakchott starts to feel like hard work by mid-afternoon. Very few visitors.

tips into what locals and long-term residents consider the hot season in earnest. Nouakchott hits 33°C (92°F) with lows of 23°C (74°F), and humidity climbs to 58%, that threshold where the air starts feeling actively sticky rather than just warm. Rainfall stays at zero despite the moisture in the air. The rains haven't arrived yet. UV remains high at 10. Nouadhibou's ship graveyard and the northern coast offer marginally cooler conditions thanks to the Canary Current. Almost no tourists.

is when Mauritania's brief wet season announces itself. Nouakchott's daytime highs dip to 30°C (85°F), a counterintuitive drop driven by cloud cover and the arrival of moisture from the south. Humidity surges to 77%, and that combination of 30-degree heat and thick tropical moisture creates heavy, saturated air that makes even short walks tiring. About 15 mm of rain falls, usually in sudden downpours. The southern regions see substantially more. UV holds at 10. Very few visitors, though the Sahel greens up in a way that surprises people who picture Mauritania as nothing but sand.

is the wettest month and the most challenging for travel. Nouakchott records around 25 mm of rainfall and 76% humidity, with temperatures at 31°C (88°F) highs and 25°C (78°F) lows. UV spikes back to 11 on clear days, and between the storms you get a punishing combination of heat, moisture, and intense sun. Unpaved roads in the south and interior can become impassable, and desert excursions are effectively suspended until conditions dry out. This is the lowest point for tourism. Skip this month.

is the tail end of the wet season, and conditions start to improve even as temperatures climb. Nouakchott reaches 34°C (93°F), the second-hottest reading of the year. But humidity begins easing from 76% down to 67%. About 20 mm of rain still falls, so it's not fully dry yet. UV sits at 10. The transitional quality of September makes it unpredictable: you might get a stretch of clear, hot days followed by an afternoon deluge. Roads start drying but aren't reliably passable everywhere. Still very few visitors.

is, somewhat surprisingly, the hottest month in Nouakchott, with highs reaching 36°C (97°F). The rains have largely ended, leaving just a trace of 3 mm, and humidity drops back to 46%. Lows are still warm at 25°C (77°F), so nights don't offer much respite. UV index is 9. The landscape retains some of the green from the wet season, which makes for interesting photography in the Sahel zone. But the heat is a serious factor for any active travel. Visitor numbers start to tick upward toward the end of the month as people anticipate cooler conditions ahead.

brings welcome relief. Temperatures in Nouakchott ease to 33°C (92°F) with lows of 21°C (69°F), and humidity settles at a comfortable 36%. No rain, UV at 8, and the Harmattan hasn't fully kicked in yet, so visibility tends to be good. This is when the travel season restarts in earnest: desert operators begin offering excursions again, the Adrar Plateau cools enough for hiking, and Nouakchott itself becomes pleasant for walking around. Visitor numbers start climbing.

is arguably the single best month for visiting Mauritania. Nouakchott cools to 29°C (85°F) highs and 18°C (64°F) lows, humidity drops to 33%, and the UV index eases to 7. A trace of rain, about 3 mm, might fall but it's negligible. Desert nights can get cool, which makes camping near Terjit or under the stars outside Chinguetti a memorable rather than miserable experience. This is the peak of what passes for tourist season in Mauritania, though "peak" here means you might see a handful of other travelers at major sites rather than having them entirely to yourself.