Temperatures slowly ease from the absolute peak; southern rainfall typically tapers off. Travel conditions improve slightly but daytime heat remains significant.
Arensond CC BY-SA 4.0 Wikimedia Commons
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Mauritania in September.
Nouakchott, Nouadhibou, Banc d’Arguin
Late summer sees the coastal fog regimes easing day-to-day, with Nor’westers bringing clearer skies intermittently and slightly cooler nights. Seabird concentrations remain strong around Banc d’Arguin as juveniles and migrants move through; sea trips are rewarding when the wind drops. Travelers should note that while days are comfortable, late-afternoon breezes can be strong - secure loose gear and choose sheltered camping spots.
Atar, Chinguetti
September’s temperatures begin to ease slightly, and where summer storms have occurred the landscape shows brief green flushes beside wadis; the plateaus otherwise remain predominately dry. Visibility clears after any monsoon influence, creating crisp late-summer light good for photography of rock formations. Travelers find fewer crowds now and good opportunities for longer day trips as the heat becomes less punishing toward month-end.
Tiris Zemmour, Zouérat, F’dérik
September brings a gradual relief from the worst heat and an increase in clearer, less turbulent air; mornings are especially pleasant for short drives to viewing points. Winds taper compared with the spring and early summer storms, reducing dust hazards for photographers and campers. Travelers can start to plan longer itineraries again, though services and infrastructure remain basic and should be pre-arranged.
Néma, Bassikounou
September brings gradual drying after the rains, with beaches of standing water receding and roads slowly reopening; the landscape remains greener than most of the year and birdlife is abundant around temporary wetlands. Humidity starts to fall and evening temperatures become more comfortable, easing camping and long drives. This month is good for secondary-season travel if you accept occasional patchy roadability and higher insect activity.
Rosso, Kaédi, Boghé
September typically sees the rains begin to taper, though the river remains high and wetlands persist, prolonging good birding and green scenery around Kaédi and Boghé. Roads gradually improve but residual mud can linger on secondary routes for weeks. Travelers benefit from fewer insects than in mid-summer and can enjoy late-season agricultural activity; keep flexible plans and expect some lingering transport delays.
There are no major festivals or events in Mauritania during September to be aware of.
See how September compares with the rest of the year, then read the full guide.