Rosso weather in August

In August, Rosso sees average daytime highs of 35°C and overnight lows near 26°C, with 59 mm of rain across 7.5 wet days and about 12.6 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 35% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is Rosso's 12th-clearest and 10th-windiest month. For the whole year in context, see Rosso's year-round climate.

Daytime high
35°
9th warmest
Overnight low
26°
11th coldest
Rainfall
59 mm
7.5 wet days
Daylight
12 h 36 min
6:51 AM – 7:24 PM
Cloud cover
55%
12th clearest
Wind
14 km/h
10th windiest
Solar energy
6.12 kWh/m²
Travel score
2.8
out of 10

Rosso is commune of Mauritania.

Density
22/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical August day in Rosso reaches about 35°C in the afternoon and slips back to 26°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 37°C. Set against its neighbours, August runs about 1°C cooler than July and about 1°C cooler than September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13526
23526
33526
43526
53526
63526
73526
83526
93526
103526
113526
123526
133526
143526
153526
163526
173526
183526
193526
203526
213526
223526
233526
243526
253526
263526
273526
283526
293526
303526
313526

How August really feels in Rosso

Once humidity and wind are folded in, August averages 31 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
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Rosso weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 18°40.311.15.5
Feb33° / 19°20.311.44.5
Mar35° / 21°00.111.93.0
Apr37° / 21°0012.41.9
May39° / 23°00.112.81.0
Jun38° / 24°20.3131.4
Jul36° / 25°122.312.92.7
Aug35° / 26°597.512.62.8
Sep36° / 26°558.312.12.3
Oct38° / 25°162.911.61.4
Nov36° / 23°10.211.22.6
Dec33° / 20°20.3114.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in August, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46238
56238
66139
76139
86040
96040
105842
115743
125644
135545
145545
155347
165248
175149
185149
195050
205050
214951
224852
234852
244852
254852
264852
274753
284753
294951
304951
314951

Chance of precipitation in August

Any precipitation

Rosso gets around 59 mm of rain over 7.5 wet days in August, the wettest month. 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 31% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
115
216
316
417
517
618
718
819
920
1020
1121
1222
1323
1424
1524
1625
1726
1826
1927
2027
2128
2228
2329
2429
2529
2629
2730
2830
2930
3031
3131

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
1117118
2107119
397120
497021
596922
686923
786725
876726
976627
1076429
1166430
1266331
1356233
1456035
1555837
1645739
1745541
1845343
1935245
2035047
2134948
2234750
2324652
2424553
2524454
2624355
2724355
2824256
2924256
3024256
3124256

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 42 min at the start of August to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over August. Sunrise moves from 6:47 AM to 6:53 AM, and sunset from 7:32 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:477:32
212.76:477:31
312.76:477:31
412.76:487:30
512.76:487:30
612.76:487:30
712.76:487:29
812.76:497:29
912.76:497:28
1012.66:497:28
1112.66:497:27
1212.66:507:26
1312.66:507:26
1412.66:507:25
1512.66:507:25
1612.66:517:24
1712.56:517:23
1812.56:517:23
1912.56:517:22
2012.56:517:22
2112.56:517:21
2212.56:527:20
2312.56:527:19
2412.46:527:19
2512.46:527:18
2612.46:527:17
2712.46:527:17
2812.46:537:16
2912.46:537:15
3012.46:537:14
3112.36:537:14

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.12 kWh/m².

For context, solar energy here swings from a low near 4.99 kWh/m² to a high of 7.46 kWh/m² in May across the year — August's 6.12 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in August

Hazard calendar for Rosso

In seasonPeak

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

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

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

Is August a good time to visit Rosso?

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

2.8
Sightseeing
5th-best month of the year
5.9
Beach & pool
7th-best month of the year

August is a weaker month for outdoor sightseeing in Rosso.

What to pack for Rosso in August

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

In August, Rosso sees daytime highs around 35°C and nights near 26°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Rosso in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rosso peaks around March 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highExtremeVery highExtremeVery highMar 18UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May12Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep11Extreme
Oct9Very high
Nov8Very high
Dec7High

Air quality in Rosso in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Rosso is worst in January — around 115 µg/m³ PM2.5 (unhealthy), about 3.7× the cleanest month (August, 31 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorUnhealthyJan 24115 µg/m³Aug 1932 µg/m³
PM2.5 (µg/m³)Level
Jan115Unhealthy
Feb115Unhealthy
Mar85Unhealthy
Apr73Unhealthy
May73Unhealthy
Jun83Unhealthy
Jul46Poor
Aug31Moderate
Sep38Poor
Oct59Unhealthy
Nov62Unhealthy
Dec105Unhealthy
Location & terrain

Where is Rosso?

Rosso sits at 16.5°N, 15.8°W, 8 m above sea level, in Mauritania. The nearest listed city is Richard-Toll, 12 km away.

PodorSaint-LouisLougaNdioumDara

Topography around Rosso

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

Within 3 km, the terrain around Rosso has only modest variations in elevation — a maximum elevation change of 6 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 35 m; within 80 km, only modest variations in elevation — a maximum elevation change of 68 m.

The land around Rosso is covered by grassland (30%) and cropland (29%) within 3 km, cropland (38%) and grassland (30%) within 16 km, and grassland (70%) within 80 km.

3 km
6 m
16 km
35 m
80 km
68 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Richard-Toll 12 km · Dagana 22 km · Tékane 50 km · Podor 91 km · Saint-Louis 92 km · Louga 109 km · Ndioum 123 km · Dara 134 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 Rosso (16.5138°, -15.805°, elevation 8 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).