Merzouga weather in December

In December, Merzouga sees average daytime highs of 19°C and overnight lows near 7°C, with 4 mm of rain across 0.9 wet days and about 10 hours of daylight. It is the 11th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 72% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of December to 10 hours by month's end. Set against the rest of the year, December is Merzouga's 6th-clearest and 12th-windiest month. For the whole year in context, see Merzouga's year-round climate.

Daytime high
19°
11th warmest
Overnight low
2nd coldest
Rainfall
4 mm
0.9 wet days
Daylight
10 hours
7:12 AM – 5:12 PM
Cloud cover
26%
6th clearest
Wind
11 km/h
12th windiest
Solar energy
3.6 kWh/m²
Travel score
8.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical December day in Merzouga reaches about 19°C in the afternoon and slips back to 7°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 23°C. Set against its neighbours, December runs about 4°C cooler than November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1208
2208
3208
4198
5198
6197
7197
8197
9197
10197
11197
12197
13197
14197
15197
16197
17197
18197
19187
20186
21186
22186
23186
24186
25186
26186
27186
28186
29186
30186
31186

How December really feels in Merzouga

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Merzouga weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 7th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 20%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28119
38119
48119
57921
67921
77921
87921
97921
107921
117921
127921
138020
148020
158020
168020
178020
188119
198119
208119
218119
228119
238119
248119
258119
268119
278119
288119
298218
308218
318218

Chance of precipitation in December

Any precipitation

Merzouga gets around 4 mm of rain over 0.9 wet days in December. 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%151015202531
Rain chance (%)
14
24
34
43
53
63
73
83
93
103
113
123
133
144
154
164
174
184
194
204
214
223
233
243
253
263
272
282
292
302
312

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 11 km/h in December, the calmest month.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 06 min at the start of December to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:02 AM to 7:19 AM, and sunset from 5:10 PM to 5:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.17:025:10
210.17:035:10
310.17:045:10
410.17:045:10
510.17:055:10
610.17:065:10
710.17:075:10
810.07:075:10
910.07:085:10
1010.07:095:10
1110.07:095:11
1210.07:105:11
1310.07:115:11
1410.07:115:11
1510.07:125:12
1610.07:125:12
1710.07:135:12
1810.07:145:13
1910.07:145:13
2010.07:155:13
2110.07:155:14
2210.07:165:14
2310.07:165:15
2410.07:175:15
2510.07:175:16
2610.07:175:16
2710.07:185:17
2810.07:185:18
2910.07:185:18
3010.07:195:19
3110.07:195:19

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.6 kWh/m² — the year's lowest.

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 — December's 3.6 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.7Moderate
73.7Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.7Moderate
313.7Moderate
Planning a trip in December

Hazard calendar for Merzouga

In seasonPeak

None of Merzouga's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

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

Is December a good time to visit Merzouga?

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

8.0
Sightseeing
4th-best month of the year
3.2
Beach & pool
9th-best month of the year

December is one of the better times to visit Merzouga for general sightseeing.

What to pack for Merzouga in December

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

In December, Merzouga sees daytime highs around 19°C and nights near 7°C. Worth packing: a warm layer.

a warm layer

UV index in Merzouga in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 4 — enough to warrant sun protection. 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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).