Magṭa‘ Laḥjar weather in September

In September, Magṭa‘ Laḥjar sees average daytime highs of 38°C and overnight lows near 28°C, with 28 mm of rain across 5.2 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 38°C through the month. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels oppressive.

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 Magṭa‘ Laḥjar's 9th-clearest and 12th-windiest month. For the whole year in context, see Magṭa‘ Laḥjar's year-round climate.

Daytime high
38°
6th warmest
Overnight low
28°
10th coldest
Rainfall
28 mm
5.2 wet days
Daylight
12 h 06 min
6:44 AM – 6:50 PM
Cloud cover
42%
9th clearest
Wind
14 km/h
12th windiest
Solar energy
6.61 kWh/m²
Travel score
1.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 38°C through the month.

A typical September day in Magṭa‘ Laḥjar reaches about 38°C in the afternoon and slips back to 28°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 41°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13728
23728
33828
43828
53828
63828
73828
83828
93828
103828
113828
123828
133828
143828
153828
163828
173828
183828
193828
203828
213928
223928
233928
243928
253928
263928
273928
283928
293928
303928

How September really feels in Magṭa‘ Laḥjar

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
30 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.

Magṭa‘ Laḥjar weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 17°20.211.15.8
Feb33° / 19°20.411.44.5
Mar36° / 22°10.111.92.5
Apr39° / 25°0012.40.5
May42° / 28°10.312.80.0
Jun42° / 29°20.5130.0
Jul39° / 28°9212.90.7
Aug37° / 28°345.812.61.5
Sep38° / 28°285.212.11.0
Oct39° / 27°91.811.60.8
Nov36° / 23°00.111.22.7
Dec32° / 19°20.3115.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16535
26535
36535
46634
56733
66733
76931
86931
96931
107129
117129
127129
137129
147228
157228
167327
177327
187327
197327
207327
217327
227327
237327
247327
257327
267327
277426
287426
297426
307426

Chance of precipitation in September

Any precipitation

Magṭa‘ Laḥjar gets around 28 mm of rain over 5.2 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 17% and peaks near 21% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
121
221
321
420
520
620
719
819
918
1018
1117
1217
1317
1417
1517
1616
1716
1816
1916
2016
2116
2216
2315
2415
2515
2615
2714
2814
2913
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1129274913
21210274813
31210284713
41211284612
51211294412
61312304312
71313304111
81414314011
91414313911
101515313710
112515323610
12261632359
13261632349
14371732338
15381732328
16481732318
17591831307
185101831297
196111830286
207121929276
219121928266
2210131927255
2311142026245
2413152025235
2514152023234
2616162122224
2718172120214
2820172119193
2922182117183
3024182116173

Wind in September

Winds average 14 km/h in September, the calmest month.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:42 AM to 6:46 AM, and sunset from 7:02 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:427:02
212.36:427:02
312.36:427:01
412.36:427:00
512.36:426:59
612.36:426:58
712.26:436:57
812.26:436:57
912.26:436:56
1012.26:436:55
1112.26:436:54
1212.26:436:53
1312.16:436:52
1412.16:446:51
1512.16:446:50
1612.16:446:50
1712.16:446:49
1812.16:446:48
1912.06:446:47
2012.06:446:46
2112.06:446:45
2212.06:456:44
2312.06:456:43
2412.06:456:43
2511.96:456:42
2611.96:456:41
2711.96:456:40
2811.96:466:39
2911.96:466:38
3011.96:466:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.61 kWh/m².

For context, solar energy here swings from a low near 4.98 kWh/m² to a high of 7.52 kWh/m² in May across the year — September's 6.61 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
Planning a trip in September

Hazard calendar for Magṭa‘ Laḥjar

In seasonPeak

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

Magṭa‘ Laḥjar 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 Magṭa‘ Laḥjar?

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

1.0
Sightseeing
7th-best month of the year
4.0
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Magṭa‘ Laḥjar.

What to pack for Magṭa‘ Laḥjar in September

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

In September, Magṭa‘ Laḥjar sees daytime highs around 38°C and nights near 28°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Magṭa‘ Laḥjar 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 Magṭa‘ Laḥjar peaks around March 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 17UV 12Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb12Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct9Very high
Nov8Very high
Dec7High

Air quality in Magṭa‘ Laḥjar 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 Magṭa‘ Laḥjar is worst in January — around 132 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (September, 54 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyJan 18130 µg/m³Sep 1555 µg/m³
PM2.5 (µg/m³)Level
Jan132Unhealthy
Feb122Unhealthy
Mar93Unhealthy
Apr81Unhealthy
May93Unhealthy
Jun112Unhealthy
Jul93Unhealthy
Aug61Unhealthy
Sep54Poor
Oct63Unhealthy
Nov66Unhealthy
Dec117Unhealthy
Location & terrain

Where is Magṭa‘ Laḥjar?

Magṭa‘ Laḥjar sits at 17.5°N, 13.1°W, 60 m above sea level, in Mauritania. The nearest listed city is Aleg, 101 km away.

AlegElghabraGuerouKaédiBoguéBoutilimittThilogneNdioum

Topography around Magṭa‘ Laḥjar

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

Within 3 km, the terrain around Magṭa‘ Laḥjar has only modest variations in elevation — a maximum elevation change of 19 m around an average of 58 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 82 m; within 80 km, significant variations in elevation — a maximum elevation change of 423 m.

The land around Magṭa‘ Laḥjar is covered by grassland (42%) and bare terrain (38%) within 3 km, grassland (59%) and bare terrain (39%) within 16 km, and bare terrain (58%) and grassland (41%) within 80 km.

3 km
19 m
16 km
82 m
80 km
423 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Aleg 101 km · Elghabra 105 km · Guerou 122 km · Kaédi 157 km · Bogué 161 km · Boutilimitt 170 km · Thilogne 186 km · Ndioum 199 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 Magṭa‘ Laḥjar (17.506°, -13.0927°, elevation 60 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).