Merzouga weather in September

In September, Merzouga sees average daytime highs of 36°C and overnight lows near 24°C, with 7 mm of rain across 1.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 38°C in the first days to 33°C by the end. The sky is clear or mostly clear about 71% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Merzouga's 11th-clearest and 5th-windiest month. For the whole year in context, see Merzouga's year-round climate.

Daytime high
36°
4th warmest
Overnight low
24°
9th coldest
Rainfall
7 mm
1.1 wet days
Daylight
12 h 12 min
6:05 AM – 6:16 PM
Cloud cover
28%
11th clearest
Wind
15 km/h
5th windiest
Solar energy
6.32 kWh/m²
Travel score
2.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 38°C in the first days to 33°C by the end.

A typical September day in Merzouga reaches about 36°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 39°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

20°30°40°151015202530
Avg high (°C)Avg low (°C)
13926
23826
33826
43826
53825
63825
73825
83725
93725
103725
113724
123724
133624
143624
153624
163623
173623
183523
193523
203523
213522
223422
233422
243422
253422
263422
273321
283321
293321
303321

How September really feels in Merzouga

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
heat index over the day's high
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.

Merzouga weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 51.210.27.8
Feb21° / 6110.98.4
Mar25° / 12°61.111.88.9
Apr29° / 16°30.612.77.3
May33° / 21°40.713.64.3
Jun38° / 25°10.3141.2
Jul42° / 29°10.113.80.0
Aug41° / 28°20.513.10.1
Sep36° / 24°71.112.22.8
Oct30° / 18°81.211.26.7
Nov23° / 11°61.310.48.7
Dec19° / 40.9108.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
28911
38911
48713
58713
68614
78614
88515
98416
108416
118317
128317
138218
148119
158119
168119
178020
188020
198020
208020
218020
228020
238020
248119
258119
268020
278020
288020
298020
308119

Chance of precipitation in September

Any precipitation

Merzouga gets around 7 mm of rain over 1.1 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 3% and peaks near 4% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
44
54
64
74
84
94
104
114
123
133
143
153
163
173
183
193
203
213
223
233
243
253
263
273
283
293
303

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19541
29541
39541
49541
59541
69352
79352
89352
99352
109352
119442
129442
139442
149442
159442
169343
179343
189343
199343
209442
219442
229442
239442
249442
259442
269442
279442
289442
299442
309442

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 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
114light breeze
214light breeze
314light breeze
414light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 5:56 AM to 6:13 AM, and sunset from 6:36 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:566:36
212.65:566:34
312.65:576:33
412.65:586:32
512.55:586:31
612.55:596:29
712.55:596:28
812.46:006:27
912.46:016:25
1012.46:016:24
1112.36:026:23
1212.36:026:21
1312.36:036:20
1412.36:046:19
1512.26:046:17
1612.26:056:16
1712.26:056:15
1812.16:066:13
1912.16:076:12
2012.16:076:11
2112.06:086:09
2212.06:086:08
2312.06:096:07
2411.96:106:05
2511.96:106:04
2611.96:116:03
2711.86:116:01
2811.86:126:00
2911.86:135:59
3011.76:135:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.32 kWh/m².

For context, solar energy here swings from a low near 3.6 kWh/m² to a high of 8.11 kWh/m² in June across the year — September's 6.32 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.6Intense
86.6Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.4Intense
146.4Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.1Intense
246.0Intense
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Merzouga

In seasonPeak

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

Merzouga sees seasonal dust haze (April–September), heaviest in July.

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

Is September a good time to visit Merzouga?

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

2.8
Sightseeing
9th-best month of the year
6.3
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Merzouga. The water and warmth also suit a beach or pool day.

What to pack for Merzouga in September

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

In September, Merzouga sees daytime highs around 36°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Merzouga in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Merzouga peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highModerateJul 17UV 10Dec 17UV 4
UV index (midday)Level
Jan5Moderate
Feb5Moderate
Mar8Very high
Apr9Very high
May9Very high
Jun10Very high
Jul10Extreme
Aug10Very high
Sep9Very high
Oct8Very high
Nov5Moderate
Dec4Moderate

Air quality in Merzouga 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 Merzouga is worst in April — around 61 µg/m³ PM2.5 (unhealthy), about 3.9× the cleanest month (December, 16 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateApr 2160 µg/m³Dec 1616 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb33Moderate
Mar42Poor
Apr61Unhealthy
May58Unhealthy
Jun56Unhealthy
Jul51Poor
Aug53Poor
Sep46Poor
Oct31Moderate
Nov20Moderate
Dec16Moderate
Location & terrain

Where is Merzouga?

Merzouga sits at 31.1°N, 4.0°W, 0 m above sea level, in Morocco. The nearest listed city is Moulay Ali Cherif, 31 km away.

ErrachidiaGoulmimaRichTinerhirBéchar

Topography around Merzouga

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

Within 3 km, the terrain around Merzouga has only modest variations in elevation — a maximum elevation change of 116 m around an average of 706 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 242 m; within 80 km, large variations in elevation — a maximum elevation change of 703 m.

The land around Merzouga is covered by bare terrain (97%) within 3 km, bare terrain (100%) within 16 km, and bare terrain (99%) within 80 km.

3 km
116 m
16 km
242 m
80 km
703 m
artificial surfacesbare terrain
September weather nearby: Moulay Ali Cherif 31 km · Reçani 32 km · Arfoud 43 km · Errachidia 100 km · Goulmima 111 km · Rich 137 km · Tinerhir 152 km · Béchar 180 km

Morocco travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 42% of US
price level, 2025
GDP per capita
$4,672
2025
Happiness
4.6 / 10
World Happiness, 2025
Safe drinking water
80%
of population, 2024
Homicide rate
1.7
per 100k, 2023
Road deaths
17
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 492
Religion
Muslim 99%other 1%

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 Merzouga (31.0994°, -4.0134°, elevation 0 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).