Guerou weather in January

In January, Guerou sees average daytime highs of 29°C and overnight lows near 17°C, with 1 mm of rain across 0.2 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 54% of the time in January, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Guerou's 8th-clearest and 1st-windiest month. For the whole year in context, see Guerou's year-round climate.

Daytime high: 29°; 12th warmest
Overnight low: 17°; 1st coldest
Rainfall: 1 mm; 0.2 wet days
Daylight: 11 h 06 min; 7:25 AM – 6:30 PM
Cloud cover: 41%; 8th clearest
Wind: 19 km/h; 1st windiest
Solar energy: 5.31 kWh/m²
Travel score: 7.0; out of 10

← December Guerou year-round climate February →Best places to visit in January

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical January day in Guerou reaches about 29°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, January runs about 1°C cooler than December and about 3°C cooler than February.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	29	29	29	29	29	28	28	28	28	28	28	28	29	29	29	29	29	29	29	29	29	29	29	29	29	30	30	30	30	30	30
Avg low (°C)	18	18	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18

	Avg high (°C)	Avg low (°C)
1	29	18
2	29	18
3	29	17
4	29	17
5	29	17
6	28	17
7	28	17
8	28	17
9	28	17
10	28	17
11	28	17
12	28	17
13	29	17
14	29	17
15	29	17
16	29	17
17	29	17
18	29	17
19	29	17
20	29	17
21	29	17
22	29	17
23	29	17
24	29	18
25	29	18
26	30	18
27	30	18
28	30	18
29	30	18
30	30	18
31	30	18

How January really feels in Guerou

Once humidity and wind are folded in, January 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

January 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 January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 17°	1	0.2	11.1	7.0
Feb	32° / 20°	1	0.2	11.4	5.2
Mar	36° / 23°	0	0.1	11.9	2.9
Apr	39° / 26°	0	0	12.4	0.6
May	41° / 29°	1	0.4	12.8	0.0
Jun	41° / 30°	4	0.9	13	0.1
Jul	37° / 28°	19	3.3	12.9	1.6
Aug	35° / 27°	61	8.2	12.6	2.5
Sep	37° / 27°	41	7.1	12.1	1.9
Oct	38° / 27°	11	2.4	11.6	1.5
Nov	34° / 23°	1	0.2	11.2	3.6
Dec	30° / 19°	2	0.3	11	6.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	61	61	61	62	62	62	63	63	65	66	66	66	67	67	67	67	67	67	67	67	67	68	67	67	67	67	67	67	67	66	66
Cloudier (%)	39	39	39	38	38	38	37	37	35	34	34	34	33	33	33	33	33	33	33	33	33	32	33	33	33	33	33	33	33	34	34

	Clearer (%)	Cloudier (%)
1	61	39
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	63	37
8	63	37
9	65	35
10	66	34
11	66	34
12	66	34
13	67	33
14	67	33
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	68	32
23	67	33
24	67	33
25	67	33
26	67	33
27	67	33
28	67	33
29	67	33
30	66	34
31	66	34

Chance of precipitation in January

Any precipitation

Guerou gets around 1 mm of rain over 0.2 wet days in January. 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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	99	99	99	99	99	99	99	99	99	100
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	100	0

Wind in January

Winds average 19 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	19	light breeze
2	19	light breeze
3	19	light breeze
4	19	light breeze
5	19	light breeze
6	19	light breeze
7	19	light breeze
8	19	light breeze
9	19	light breeze
10	19	light breeze
11	19	light breeze
12	19	light breeze
13	19	light breeze
14	19	light breeze
15	19	light breeze
16	19	light breeze
17	19	light breeze
18	19	light breeze
19	19	light breeze
20	19	light breeze
21	18	light breeze
22	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	18	light breeze
27	18	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze
31	18	light breeze

Sunrise & sunset in January

DaylightNight

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

Days grow by about 12 minutes over January. Sunrise moves from 7:21 AM to 7:25 AM, and sunset from 6:21 PM to 6:38 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	11.0	11.0	11.0	11.0	11.0	11.0	11.0	11.0	11.0	11.0	11.0	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.1	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.2
Sunrise (AM)	7:21	7:22	7:22	7:22	7:23	7:23	7:23	7:24	7:24	7:24	7:24	7:24	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25	7:25
Sunset (PM)	6:21	6:22	6:22	6:23	6:23	6:24	6:25	6:25	6:26	6:26	6:27	6:28	6:28	6:29	6:29	6:30	6:31	6:31	6:32	6:32	6:33	6:33	6:34	6:35	6:35	6:36	6:36	6:37	6:37	6:38	6:38

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.0	7:21	6:21
2	11.0	7:22	6:22
3	11.0	7:22	6:22
4	11.0	7:22	6:23
5	11.0	7:23	6:23
6	11.0	7:23	6:24
7	11.0	7:23	6:25
8	11.0	7:24	6:25
9	11.0	7:24	6:26
10	11.0	7:24	6:26
11	11.0	7:24	6:27
12	11.1	7:24	6:28
13	11.1	7:25	6:28
14	11.1	7:25	6:29
15	11.1	7:25	6:29
16	11.1	7:25	6:30
17	11.1	7:25	6:31
18	11.1	7:25	6:31
19	11.1	7:25	6:32
20	11.1	7:25	6:32
21	11.1	7:25	6:33
22	11.1	7:25	6:33
23	11.1	7:25	6:34
24	11.2	7:25	6:35
25	11.2	7:25	6:35
26	11.2	7:25	6:36
27	11.2	7:25	6:36
28	11.2	7:25	6:37
29	11.2	7:25	6:37
30	11.2	7:25	6:38
31	11.2	7:25	6:38

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.31 kWh/m².

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 — January's 5.31 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.5	5.6	5.6	5.6	5.6	5.7
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.1	Bright
2	5.1	Bright
3	5.1	Bright
4	5.1	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.2	Bright
10	5.2	Bright
11	5.2	Bright
12	5.2	Bright
13	5.2	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.4	Bright
19	5.4	Bright
20	5.4	Bright
21	5.4	Bright
22	5.5	Bright
23	5.5	Bright
24	5.5	Bright
25	5.5	Bright
26	5.5	Bright
27	5.6	Bright
28	5.6	Bright
29	5.6	Bright
30	5.6	Bright
31	5.7	Bright

Planning a trip in January

Hazard calendar for Guerou

In seasonPeak

In January, 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 January a good time to visit Guerou?

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

7.0

Sightseeing

1st-best month of the year

8.8

Beach & pool

1st-best month of the year

January is one of the better times to visit Guerou for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Guerou in January

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

In January, Guerou sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Guerou in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 — 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	8	12	13	12	11	10	11	11	12	9	8	7
Level	Very high	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Very high	Very high	High

	UV index (midday)	Level
Jan	8	Very high
Feb	12	Extreme
Mar	13	Extreme
Apr	12	Extreme
May	11	Extreme
Jun	10	Very high
Jul	11	Extreme
Aug	11	Extreme
Sep	12	Extreme
Oct	9	Very high
Nov	8	Very high
Dec	7	High

Air quality in Guerou in January

GoodModeratePoorUnhealthyVery unhealthy

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	120	106	77	61	68	91	74	47	45	57	60	108
Level	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Unhealthy	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	120	Unhealthy
Feb	106	Unhealthy
Mar	77	Unhealthy
Apr	61	Unhealthy
May	68	Unhealthy
Jun	91	Unhealthy
Jul	74	Unhealthy
Aug	47	Poor
Sep	45	Poor
Oct	57	Unhealthy
Nov	60	Unhealthy
Dec	108	Unhealthy

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.

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

bare terrain 56%

16 km

399 m

bare terrain 51%

80 km

594 m

bare terrain 64%

treesshrubsgrasslandartificial surfacesbare terrain

← December Guerou year-round climate February →Best places to visit in January

January 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

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).

	Avg high (°C)	Avg low (°C)
1	29	18
2	29	18
3	29	17
4	29	17
5	29	17
6	28	17
7	28	17
8	28	17
9	28	17
10	28	17
11	28	17
12	28	17
13	29	17
14	29	17
15	29	17
16	29	17
17	29	17
18	29	17
19	29	17
20	29	17
21	29	17
22	29	17
23	29	17
24	29	18
25	29	18
26	30	18
27	30	18
28	30	18
29	30	18
30	30	18
31	30	18

	Clearer (%)	Cloudier (%)
1	61	39
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	63	37
8	63	37
9	65	35
10	66	34
11	66	34
12	66	34
13	67	33
14	67	33
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	68	32
23	67	33
24	67	33
25	67	33
26	67	33
27	67	33
28	67	33
29	67	33
30	66	34
31	66	34

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	100	0

	Avg high (°C)	Avg low (°C)
1	29	18
2	29	18
3	29	17
4	29	17
5	29	17
6	28	17
7	28	17
8	28	17
9	28	17
10	28	17
11	28	17
12	28	17
13	29	17
14	29	17
15	29	17
16	29	17
17	29	17
18	29	17
19	29	17
20	29	17
21	29	17
22	29	17
23	29	17
24	29	18
25	29	18
26	30	18
27	30	18
28	30	18
29	30	18
30	30	18
31	30	18

	Clearer (%)	Cloudier (%)
1	61	39
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	63	37
8	63	37
9	65	35
10	66	34
11	66	34
12	66	34
13	67	33
14	67	33
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	68	32
23	67	33
24	67	33
25	67	33
26	67	33
27	67	33
28	67	33
29	67	33
30	66	34
31	66	34

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	100	0

	Avg high (°C)	Avg low (°C)
1	29	18
2	29	18
3	29	17
4	29	17
5	29	17
6	28	17
7	28	17
8	28	17
9	28	17
10	28	17
11	28	17
12	28	17
13	29	17
14	29	17
15	29	17
16	29	17
17	29	17
18	29	17
19	29	17
20	29	17
21	29	17
22	29	17
23	29	17
24	29	18
25	29	18
26	30	18
27	30	18
28	30	18
29	30	18
30	30	18
31	30	18

	Clearer (%)	Cloudier (%)
1	61	39
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	63	37
8	63	37
9	65	35
10	66	34
11	66	34
12	66	34
13	67	33
14	67	33
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	68	32
23	67	33
24	67	33
25	67	33
26	67	33
27	67	33
28	67	33
29	67	33
30	66	34
31	66	34

	Rain chance (%)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1
31	100	0