Sidi Slimane weather in December

In December, Sidi Slimane sees average daytime highs of 19°C and overnight lows near 9°C, with 58 mm of rain across 7.5 wet days and about 9.8 hours of daylight. It is the 11th-warmest and 2nd-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 42% 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 42 min by month's end. Set against the rest of the year, December is Sidi Slimane's 12th-clearest and 6th-windiest month. For the whole year in context, see Sidi Slimane's year-round climate.

Daytime high
19°
11th warmest
Overnight low
3rd coldest
Rainfall
58 mm
7.5 wet days
Daylight
9 h 42 min
7:28 AM – 5:12 PM
Cloud cover
49%
12th clearest
Wind
7 km/h
6th windiest
Solar energy
2.61 kWh/m²
Travel score
6.6
out of 10

Sidi Slimane is city in Morocco.

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

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 Sidi Slimane reaches about 19°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°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)
1209
2199
3199
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20198
21198
22198
23198
24188
25188
26188
27188
28188
29188
30188
31188

How December really feels in Sidi Slimane

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.

Sidi Slimane weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 567.9106.3
Feb19° / 487.210.76.6
Mar22° / 10°496.911.77.3
Apr24° / 12°406.912.87.6
May27° / 14°265.113.87.3
Jun31° / 17°71.514.26.0
Jul33° / 19°10.214.14.7
Aug33° / 20°10.413.34.6
Sep30° / 18°17312.26.0
Oct27° / 15°516.311.17.2
Nov22° / 11°657.510.27.2
Dec19° / 587.59.86.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55743
65743
75743
85842
95842
105842
115842
125842
135941
145941
155842
165941
175941
185941
195842
205842
215842
225941
235941
245941
256040
266040
276040
286139
296139
306139
316139

Chance of precipitation in December

Any precipitation

Sidi Slimane gets around 58 mm of rain over 7.5 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 24% and peaks near 29% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
129
228
328
428
527
627
726
826
926
1026
1125
1225
1324
1424
1524
1624
1723
1823
1923
2023
2123
2223
2322
2422
2521
2621
2721
2821
2921
3021
3121

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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
189110
289110
389110
489110
589110
689110
789110
888111
988111
1088111
1189101
1289101
1389101
1489101
1589101
1689101
1788102
1888102
1988102
2088102
2188102
2288102
2388102
248992
258992
268992
279181
289181
299271
309271
319271

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:17 AM to 7:35 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)
19.97:175:10
29.97:185:10
39.87:195:10
49.87:205:10
59.87:205:10
69.87:215:10
79.87:225:10
89.87:235:10
99.87:235:10
109.87:245:10
119.87:255:10
129.77:265:10
139.77:265:11
149.77:275:11
159.77:285:11
169.77:285:12
179.77:295:12
189.77:295:12
199.77:305:13
209.77:305:13
219.77:315:13
229.77:315:14
239.77:325:14
249.77:325:15
259.77:335:15
269.77:335:16
279.77:335:17
289.77:345:17
299.77:345:18
309.77:345:18
319.77:355:19

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.61 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 7.68 kWh/m² in July across the year — December's 2.61 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.7Moderate
312.7Moderate
Planning a trip in December

Hazard calendar for Sidi Slimane

In seasonPeak

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

Sidi Slimane sees seasonal dust haze (July), heaviest in July.

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

Is December a good time to visit Sidi Slimane?

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

6.6
Sightseeing
6th-best month of the year
2.7
Beach & pool
11th-best month of the year

December is a reasonable time to visit Sidi Slimane for sightseeing.

What to pack for Sidi Slimane in December

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

In December, Sidi Slimane sees daytime highs around 19°C and nights near 9°C. Little to plan around — just the basics. About 8 days see rain.

Sea temperature near Sidi Slimane 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 65 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 Jun 6 to Nov 5 — about 5 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb17Cool
Mar17Cool
Apr18Cool
May19Cool
Jun21Refreshing
Jul22Refreshing
Aug23Refreshing
Sep22Refreshing
Oct21Refreshing
Nov20Cool
Dec18Cool

UV index in Sidi Slimane in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sidi Slimane peaks around July 18 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highVery highHighModerateJul 18UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar7Very high
Apr8Very high
May8Very high
Jun9Very high
Jul11Extreme
Aug9Very high
Sep7High
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Sidi Slimane 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 Sidi Slimane is worst in January — around 38 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (June, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1737 µg/m³Jun 1519 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb37Poor
Mar32Moderate
Apr27Moderate
May23Moderate
Jun18Moderate
Jul24Moderate
Aug22Moderate
Sep23Moderate
Oct31Moderate
Nov34Moderate
Dec37Poor
Location & terrain

Where is Sidi Slimane?

Sidi Slimane sits at 34.3°N, 5.9°W, 37 m above sea level, in Morocco. The nearest listed city is Sidi Kacem, 21 km away.

Topography around Sidi Slimane

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

Within 3 km, the terrain around Sidi Slimane has only modest variations in elevation — a maximum elevation change of 19 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 284 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,248 m.

The land around Sidi Slimane is covered by cropland (45%) and grassland (21%) within 3 km, cropland (62%) within 16 km, and cropland (53%) and grassland (24%) within 80 km.

3 km
19 m
16 km
284 m
80 km
1,248 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Sidi Kacem 21 km · Mechraa Bel Ksiri 34 km · Sidi Yahia El Gharb 35 km · Souk et Tnine Jorf el Mellah 46 km · Souk El Arbaa 47 km · Souq Larb’a al Gharb 47 km · Khemisset 51 km · Douar Toulal 52 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 Sidi Slimane (34.2648°, -5.926°, elevation 37 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).