Atar in Fall
In fall (September, October and November), Atar sees average daytime highs around 35°C and overnight lows near 24°C, with 25 mm of rain over about 6 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 39°C in early September to 28°C by late November. The sky is clear or mostly clear about 63% of the time across fall, and the air most often feels dry.
Fall is Atar's 3rd-best season to visit on our travel score. For the whole year in context, see Atar's year-round climate.
- Avg daytime high
- 35°C
- 2nd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 25 mm
- 6 wet days
- Avg wind
- 14 km/h
- Travel score
- 3.1
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Atar in Fall
Over the season highs ease from about 39°C in early September to 28°C by late November.
A typical fall day in Atar reaches about 35°C and drops to 24°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Atar
Once humidity and wind are folded in, fall brings about 70 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Atar weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 14° | 3 | 0.4 | 10.9 | 8.8 |
| Feb | 28° / 16° | 2 | 0.4 | 11.3 | 7.9 |
| Mar | 31° / 18° | 2 | 0.4 | 11.9 | 5.8 |
| Apr | 35° / 21° | 1 | 0.2 | 12.5 | 3.7 |
| May | 38° / 25° | 1 | 0.1 | 13 | 1.7 |
| Jun | 40° / 27° | 1 | 0.6 | 13.2 | 0.2 |
| Jul | 40° / 28° | 3 | 1.1 | 13.1 | 0.0 |
| Aug | 40° / 28° | 14 | 4 | 12.7 | 0.3 |
| Sep | 39° / 28° | 15 | 3.8 | 12.1 | 0.9 |
| Oct | 36° / 24° | 8 | 1.1 | 11.5 | 2.7 |
| Nov | 31° / 19° | 3 | 0.6 | 11 | 5.8 |
| Dec | 27° / 15° | 5 | 0.6 | 10.8 | 8.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 63% of the time across fall.
Chance of precipitation in Fall
Atar gets around 25 mm of rain over 6 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 14 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early September to 10 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.9 kWh/m².
Hazard calendar for Atar
In fall, Atar overlaps its dust season. The full year is below, with each hazard's peak months called out.
Atar sees dust haze year-round, heaviest in July.
Is fall a good time to visit Atar?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Atar. The water and warmth also suit a beach or pool day.
What to pack for Atar in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Atar sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection. About 6 days see rain.
UV index in Atar in Fall
Clear-sky midday UV across fall averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Atar peaks around March 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (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) | 7 | 10 | 11 | 10 | 11 | 11 | 9 | 10 | 10 | 9 | 7 | 6 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | Very high |
| Feb | 10 | Extreme |
| Mar | 11 | Extreme |
| Apr | 10 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 9 | Very high |
| Aug | 10 | Extreme |
| Sep | 10 | Extreme |
| Oct | 9 | Very high |
| Nov | 7 | Very high |
| Dec | 6 | High |
Air quality in Atar in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Atar is worst in January — around 117 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (April, 60 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) | 117 | 102 | 80 | 60 | 62 | 89 | 114 | 94 | 77 | 69 | 64 | 112 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 117 | Unhealthy |
| Feb | 102 | Unhealthy |
| Mar | 80 | Unhealthy |
| Apr | 60 | Unhealthy |
| May | 62 | Unhealthy |
| Jun | 89 | Unhealthy |
| Jul | 114 | Unhealthy |
| Aug | 94 | Unhealthy |
| Sep | 77 | Unhealthy |
| Oct | 69 | Unhealthy |
| Nov | 64 | Unhealthy |
| Dec | 112 | Unhealthy |
Where is Atar?
Atar sits at 20.5°N, 13.0°W, 192 m above sea level, in Mauritania. The nearest listed city is Akjoujt, 164 km away.
Topography around Atar
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Atar.
Within 3 km, the terrain around Atar has only modest variations in elevation — a maximum elevation change of 26 m around an average of 229 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 603 m; within 80 km, large variations in elevation — a maximum elevation change of 691 m.
The land around Atar is covered by bare terrain (96%) within 3 km, bare terrain (100%) within 16 km, and bare terrain (100%) within 80 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 Atar (20.5188°, -13.0464°, elevation 192 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.