Rosso in Spring
In spring (March, April and May), Rosso sees average daytime highs around 37°C and overnight lows near 22°C, with 1 mm of rain over about 0 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 35°C in early March to 39°C by late May. The sky is clear or mostly clear about 74% of the time across spring, and the air most often feels dry.
Spring is Rosso's weakest season of the year to visit on our travel score. For the whole year in context, see Rosso's year-round climate.
- Avg daytime high
- 37°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 1 mm
- 0 wet days
- Avg wind
- 19 km/h
- Travel score
- 2.0
- weakest season of the year
- Months
- Mar · Apr · May
Temperature in Rosso in Spring
Over the season highs climb from about 35°C in early March to 39°C by late May.
A typical spring day in Rosso reaches about 37°C and drops to 22°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Rosso
Once humidity and wind are folded in, spring brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Rosso weather by month
How the three spring months (March, April and May) 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 | 31° / 18° | 4 | 0.3 | 11.1 | 5.5 |
| Feb | 33° / 19° | 2 | 0.3 | 11.4 | 4.5 |
| Mar | 35° / 21° | 0 | 0.1 | 11.9 | 3.0 |
| Apr | 37° / 21° | 0 | 0 | 12.4 | 1.9 |
| May | 39° / 23° | 0 | 0.1 | 12.8 | 1.0 |
| Jun | 38° / 24° | 2 | 0.3 | 13 | 1.4 |
| Jul | 36° / 25° | 12 | 2.3 | 12.9 | 2.7 |
| Aug | 35° / 26° | 59 | 7.5 | 12.6 | 2.8 |
| Sep | 36° / 26° | 55 | 8.3 | 12.1 | 2.3 |
| Oct | 38° / 25° | 16 | 2.9 | 11.6 | 1.4 |
| Nov | 36° / 23° | 1 | 0.2 | 11.2 | 2.6 |
| Dec | 33° / 20° | 2 | 0.3 | 11 | 4.6 |
Cloud cover in Spring
The sky is clear or mostly clear about 74% of the time across spring.
Chance of precipitation in Spring
Rosso gets around 1 mm of rain over 0 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 19 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 42 min in early March to 12 h 54 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 7.3 kWh/m².
Hazard calendar for Rosso
In spring, Rosso overlaps 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.
Is spring a good time to visit Rosso?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Rosso.
What to pack for Rosso in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Rosso sees daytime highs around 37°C and nights near 22°C. Pack light clothes and sun protection.
UV index in Rosso in Spring
Clear-sky midday UV across spring averages around 12 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 11 | 13 | 11 | 12 | 10 | 10 | 11 | 11 | 9 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 11 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 9 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Rosso in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 115 | 115 | 85 | 73 | 73 | 83 | 46 | 31 | 38 | 59 | 62 | 105 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 115 | Unhealthy |
| Feb | 115 | Unhealthy |
| Mar | 85 | Unhealthy |
| Apr | 73 | Unhealthy |
| May | 73 | Unhealthy |
| Jun | 83 | Unhealthy |
| Jul | 46 | Poor |
| Aug | 31 | Moderate |
| Sep | 38 | Poor |
| Oct | 59 | Unhealthy |
| Nov | 62 | Unhealthy |
| Dec | 105 | Unhealthy |
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.
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.
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 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.