Mers El Kheir weather in December

In December, Mers El Kheir sees average daytime highs of 19°C and overnight lows near 10°C, with 52 mm of rain across 6.9 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 3rd-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 44% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is Mers El Kheir's 12th-clearest and 4th-windiest month. For the whole year in context, see Mers El Kheir's year-round climate.

Daytime high
19°
10th warmest
Overnight low
10°
3rd coldest
Rainfall
52 mm
6.9 wet days
Daylight
9 h 48 min
7:31 AM – 5:17 PM
Cloud cover
47%
12th clearest
Wind
9 km/h
4th windiest
Solar energy
2.75 kWh/m²
Travel score
6.7
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 Mers El Kheir reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11910
21910
31910
41910
51910
61910
71910
81910
91910
101910
111910
121910
131910
141910
151910
161910
171910
181810
191810
201810
211810
221810
23189
24189
25189
26189
27189
28189
29189
30189
31189

Mers El Kheir weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 547.3106.2
Feb18° / 466.910.76.6
Mar21° / 11°466.811.77.1
Apr22° / 12°356.712.87.4
May25° / 14°224.613.78.0
Jun27° / 17°41.114.28.4
Jul29° / 19°10.4147.2
Aug30° / 19°20.313.37.0
Sep28° / 18°142.712.27.7
Oct25° / 16°395.811.17.7
Nov21° / 12°627.610.27.1
Dec19° / 10°526.99.86.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25941
35941
45941
56040
66040
76040
86040
96040
106040
116040
126040
135941
146040
156040
165941
175941
185941
195941
205941
215941
226040
236040
246040
256139
266139
276238
286337
296337
306436
316436

Chance of precipitation in December

Any precipitation

Mers El Kheir gets around 52 mm of rain over 6.9 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 22% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
128
227
326
425
525
624
724
823
923
1023
1122
1222
1322
1422
1522
1622
1722
1822
1922
2022
2121
2221
2321
2421
2520
2620
2720
2819
2919
3019
3119

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
189110
290100
390100
490100
590100
690100
790100
889110
988111
1088111
1188111
1287121
1387121
1487121
1587121
1687121
1787121
1887121
1986122
2086122
2186122
2287112
2387112
2487112
2588102
2688102
278992
289181
299181
309271
319271

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:20 AM to 7:38 AM, and sunset from 5:15 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:205:15
29.97:215:15
39.97:225:15
49.97:235:15
59.97:235:15
69.87:245:15
79.87:255:15
89.87:265:15
99.87:265:15
109.87:275:15
119.87:285:15
129.87:295:16
139.87:295:16
149.87:305:16
159.87:315:16
169.87:315:17
179.87:325:17
189.87:325:17
199.77:335:18
209.77:335:18
219.77:345:19
229.77:345:19
239.77:355:20
249.77:355:20
259.77:365:21
269.87:365:21
279.87:365:22
289.87:375:22
299.87:375:23
309.87:375:24
319.87:385:24

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.75 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 7.67 kWh/m² in July across the year — December's 2.75 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.8Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.8Moderate
132.8Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in December

Hazard calendar for Mers El Kheir

In seasonPeak

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

Mers El Kheir sees seasonal dust haze (July–August), heaviest in July.

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

Is December a good time to visit Mers El Kheir?

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

6.7
Sightseeing
10th-best month of the year
2.6
Beach & pool
10th-best month of the year

December is a reasonable time to visit Mers El Kheir for sightseeing.

What to pack for Mers El Kheir in December

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

In December, Mers El Kheir sees daytime highs around 19°C and nights near 10°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Mers El Kheir in December

The nearest coast averages about 18°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in August at about 23°C and coldest in February near 17°C.

It's comfortable for a long swim from May 31 to Nov 6 — about 5.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb17Cool
Mar17Cool
Apr18Cool
May19Cool
Jun21Refreshing
Jul22Refreshing
Aug23Refreshing
Sep22Refreshing
Oct21Refreshing
Nov20Cool
Dec18Cool

UV index in Mers El Kheir in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mers El Kheir peaks around July 19 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJul 19UV 10Dec 18UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar8Very high
Apr8Very high
May8Very high
Jun9Very high
Jul11Extreme
Aug9Very high
Sep7High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Mers El Kheir 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 Mers El Kheir is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (June, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1355 µg/m³Jun 1824 µg/m³
PM2.5 (µg/m³)Level
Jan55Poor
Feb51Poor
Mar41Poor
Apr35Moderate
May29Moderate
Jun24Moderate
Jul26Moderate
Aug30Moderate
Sep32Moderate
Oct45Poor
Nov48Poor
Dec54Poor
Location & terrain

Where is Mers El Kheir?

Mers El Kheir sits at 33.9°N, 6.9°W, 88 m above sea level, in Morocco. The nearest listed city is Aïn Attig, 5.0 km away.

Topography around Mers El Kheir

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

Within 3 km, the terrain around Mers El Kheir has only modest variations in elevation — a maximum elevation change of 133 m around an average of 103 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 294 m; within 80 km, large variations in elevation — a maximum elevation change of 1,044 m.

The land around Mers El Kheir is covered by cropland (45%) and grassland (26%) within 3 km, cropland (37%) and water (21%) within 16 km, and cropland (38%), water (27%) and grassland (20%) within 80 km.

3 km
133 m
16 km
294 m
80 km
1,044 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Aïn Attig 5.0 km · Tamesna 5.0 km · Temara 8.0 km · El Harhoura 9.0 km · Skhirate 9.0 km · Ain El Aouda 14 km · Rabat 19 km · Bouznika 23 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 Mers El Kheir (33.8626°, -6.9296°, elevation 88 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).