Guerou weather in December

In December, Guerou sees average daytime highs of 30°C and overnight lows near 19°C, with 2 mm of rain across 0.3 wet days and about 11 hours of daylight. It is the 11th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 48% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Guerou's 9th-clearest and 2nd-windiest month. For the whole year in context, see Guerou's year-round climate.

Daytime high
30°
11th warmest
Overnight low
19°
2nd coldest
Rainfall
2 mm
0.3 wet days
Daylight
11 hours
7:15 AM – 6:14 PM
Cloud cover
44%
9th clearest
Wind
18 km/h
2nd windiest
Solar energy
5.05 kWh/m²
Travel score
6.3
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 29°C by the end.

A typical December day in Guerou reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13220
23220
33120
43120
53120
63120
73120
83119
93019
103019
113019
123019
133019
143019
153019
163019
173019
183019
193019
203018
213018
223018
233018
242918
252918
262918
272918
282918
292918
302918
312918

How December really feels in Guerou

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.

Guerou weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°10.211.17.0
Feb32° / 20°10.211.45.2
Mar36° / 23°00.111.92.9
Apr39° / 26°0012.40.6
May41° / 29°10.412.80.0
Jun41° / 30°40.9130.1
Jul37° / 28°193.312.91.6
Aug35° / 27°618.212.62.5
Sep37° / 27°417.112.11.9
Oct38° / 27°112.411.61.5
Nov34° / 23°10.211.23.6
Dec30° / 19°20.3116.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35941
46040
55941
65941
76040
85941
95941
105941
116040
126040
136040
146040
156040
166040
176139
186040
196040
206040
216139
226139
236139
246139
256139
266139
276040
286040
296040
306040
316040

Chance of precipitation in December

Any precipitation

Guerou gets around 2 mm of rain over 0.3 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
210
220
230
240
250
260
270
280
290
300
311

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29811
39811
49811
59811
69811
79712
89712
99712
109712
119712
129712
139712
149712
159712
169712
179712
189712
199712
209811
219811
229811
239811
249901
2510000
2610000
2710000
2810000
2910000
3010000
3110000

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 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 7:06 AM to 7:22 AM, and sunset from 6:09 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:066:09
211.07:076:10
311.07:076:10
411.07:086:10
511.07:096:10
611.07:096:11
711.07:106:11
811.07:106:11
911.07:116:11
1011.07:116:12
1111.07:126:12
1211.07:136:12
1311.07:136:13
1411.07:146:13
1511.07:146:13
1611.07:156:14
1711.07:156:14
1811.07:166:15
1911.07:166:15
2011.07:176:16
2111.07:176:16
2211.07:186:17
2311.07:186:17
2411.07:196:17
2511.07:196:18
2611.07:206:18
2711.07:206:19
2811.07:206:20
2911.07:216:20
3011.07:216:21
3111.07:226:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.05 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.05 kWh/m² to a high of 7.46 kWh/m² in April across the year — December's 5.05 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Guerou

In seasonPeak

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

Guerou sees dust haze year-round, heaviest in June.

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

Is December a good time to visit Guerou?

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

6.3
Sightseeing
2nd-best month of the year
8.5
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Guerou for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Guerou in December

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

In December, Guerou sees daytime highs around 30°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Guerou in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guerou peaks around March 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highMar 18UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb12Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct9Very high
Nov8Very high
Dec7High

Air quality in Guerou 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 Guerou is worst in January — around 120 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (September, 45 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 16118 µg/m³Sep 1145 µg/m³
PM2.5 (µg/m³)Level
Jan120Unhealthy
Feb106Unhealthy
Mar77Unhealthy
Apr61Unhealthy
May68Unhealthy
Jun91Unhealthy
Jul74Unhealthy
Aug47Poor
Sep45Poor
Oct57Unhealthy
Nov60Unhealthy
Dec108Unhealthy
Location & terrain

Where is Guerou?

Guerou sits at 17.1°N, 12.0°W, 183 m above sea level, in Mauritania. The nearest listed city is Elghabra, 83 km away.

ElghabraKiffaMagṭa‘ LaḥjarKaédiEl ’AyoûnAlegMatamṬinṭâne

Topography around Guerou

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

Within 3 km, the terrain around Guerou has only modest variations in elevation — a maximum elevation change of 236 m around an average of 183 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 399 m; within 80 km, significant variations in elevation — a maximum elevation change of 594 m.

The land around Guerou is covered by bare terrain (56%) and grassland (42%) within 3 km, bare terrain (51%) and grassland (47%) within 16 km, and bare terrain (64%) and grassland (35%) within 80 km.

3 km
236 m
16 km
399 m
80 km
594 m
treesshrubsgrasslandartificial surfacesbare terrain
December weather nearby: Elghabra 83 km · Kiffa 85 km · Magṭa‘ Laḥjar 122 km · Kaédi 187 km · El ’Ayoûn 192 km · Aleg 199 km · Matam 205 km · Ṭinṭâne 213 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 Guerou (17.0775°, -12.0387°, elevation 183 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).