Néma weather in September

In September, Néma sees average daytime highs of 37°C and overnight lows near 26°C, with 30 mm of rain across 6.8 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 36°C in the first days to 39°C by the end. The sky is clear or mostly clear about 54% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Néma's 10th-clearest and 12th-windiest month. For the whole year in context, see Néma's year-round climate.

Daytime high
37°
6th warmest
Overnight low
26°
8th coldest
Rainfall
30 mm
6.8 wet days
Daylight
12 h 06 min
6:21 AM – 6:26 PM
Cloud cover
43%
10th clearest
Wind
12 km/h
12th windiest
Solar energy
6.51 kWh/m²
Travel score
1.4
out of 10

Néma is commune of Mauritania.

Density
3,593/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 36°C in the first days to 39°C by the end.

A typical September day in Néma reaches about 37°C in the afternoon and slips back to 26°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 40°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13626
23626
33626
43626
53626
63626
73726
83726
93726
103726
113726
123726
133726
143726
153826
163827
173827
183827
193827
203827
213827
223827
233827
243827
253827
263927
273927
283927
293927
303927

How September really feels in Néma

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
26 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Néma weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°10.411.16.9
Feb32° / 19°10.111.45.0
Mar36° / 23°0011.92.6
Apr40° / 27°10.212.40.3
May41° / 29°41.112.80.0
Jun41° / 30°72.1130.0
Jul38° / 28°34712.91.0
Aug36° / 26°759.712.62.3
Sep37° / 26°306.812.11.4
Oct38° / 26°81.611.61.2
Nov35° / 22°10.111.23.4
Dec31° / 18°00.1116.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36436
46436
56535
66634
76733
86832
96931
106931
117030
127228
137228
147327
157327
167426
177525
187525
197723
207723
217723
227822
237921
247921
258020
268020
278020
287921
297822
307822

Chance of precipitation in September

Any precipitation

Néma gets around 30 mm of rain over 6.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 23% and peaks near 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
131
230
329
429
528
627
727
826
926
1025
1125
1224
1324
1424
1524
1624
1723
1823
1922
2022
2121
2220
2319
2418
2517
2616
2714
2814
2913
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 67% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101526662
201528642
301629622
402731582
502833552
602835532
703936502
8131038471
9131139441
10141240421
11141341391
12251542361
13261642341
14261743321
15371843290
16481842270
17491942250
185102041240
196112140220
208122239200
219132237180
2211142236170
2313152234150
2416162232130
2518172231120
2621172229110
2725172127100
282817212590
293117202380
303517202170

Wind in September

Winds average 12 km/h in September, the calmest month.

Across September, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 6:19 AM to 6:22 AM, and sunset from 6:39 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:196:39
212.36:196:38
312.36:196:37
412.36:196:36
512.36:196:35
612.36:196:35
712.26:206:34
812.26:206:33
912.26:206:32
1012.26:206:31
1112.26:206:30
1212.26:206:30
1312.16:206:29
1412.16:206:28
1512.16:206:27
1612.16:216:26
1712.16:216:25
1812.16:216:24
1912.06:216:24
2012.06:216:23
2112.06:216:22
2212.06:216:21
2312.06:216:20
2412.06:216:19
2511.96:226:18
2611.96:226:18
2711.96:226:17
2811.96:226:16
2911.96:226:15
3011.96:226:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.51 kWh/m².

For context, solar energy here swings from a low near 5.16 kWh/m² to a high of 7.3 kWh/m² in April across the year — September's 6.51 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Néma

In seasonPeak

In September, Néma sits inside its dust season. The full year is below, with each hazard's peak months called out.

Néma sees dust haze year-round, heaviest in June.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Néma?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.4
Sightseeing
7th-best month of the year
4.4
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Néma.

What to pack for Néma in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Néma sees daytime highs around 37°C and nights near 26°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Néma in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Néma peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 20UV 13Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct9Very high
Nov8Very high
Dec7High

Air quality in Néma in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Néma is worst in January — around 117 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (August, 28 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyJan 17117 µg/m³Aug 2328 µg/m³
PM2.5 (µg/m³)Level
Jan117Unhealthy
Feb112Unhealthy
Mar91Unhealthy
Apr70Unhealthy
May65Unhealthy
Jun71Unhealthy
Jul46Poor
Aug28Moderate
Sep29Moderate
Oct60Unhealthy
Nov69Unhealthy
Dec111Unhealthy
Location & terrain

Where is Néma?

Néma sits at 16.6°N, 7.3°W, 266 m above sea level, in Mauritania. The nearest listed city is Bougadoum, 84 km away.

BougadoumTembedghaNaraMberaAyoun El AtrousNioroNionoDiéma

Topography around Néma

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Néma.

Within 3 km, the terrain around Néma has only modest variations in elevation — a maximum elevation change of 169 m around an average of 288 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 217 m; within 80 km, only modest variations in elevation — a maximum elevation change of 246 m.

The land around Néma is covered by bare terrain (94%) within 3 km, bare terrain (87%) within 16 km, and grassland (56%) and bare terrain (42%) within 80 km.

3 km
169 m
16 km
217 m
80 km
246 m
shrubsgrasslandartificial surfacesbare terrain
September weather nearby: Bougadoum 84 km · Tembedgha 106 km · Nara 161 km · Mbera 178 km · Ayoun El Atrous 251 km · Nioro 294 km · Niono 296 km · Diéma 310 km

Mauritania travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F
220 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$2,198
2025
Happiness
4.5 / 10
World Happiness, 2025
Homicide rate
1
per 100k, 2020
Road deaths
25.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Muslim 100%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Néma (16.617°, -7.2565°, elevation 266 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).