Climate Insights for Rosso

, Wilaya du Trarza, Mauritania

Hottest
May
39°C peak
Coldest
January
19°C low
Wettest
August
55mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Rosso is hot. The average annual temperature is 29°C and approximately 132mm of precipitation falls per year. August is the wettest month, receiving around 55mm of rainfall. Rosso is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, October, June. The coldest months are January, December, February, when temperatures can drop to 19°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 33° Average: 25° Min: 19° Feb Max: 34° Average: 26° Min: 20° Mar Max: 36° Average: 27° Min: 20° Apr Max: 38° Average: 29° Min: 22° May Max: 39° Average: 29° Min: 23° Jun Max: 38° Average: 30° Min: 24° Jul Max: 36° Average: 30° Min: 26° Aug Max: 35° Average: 30° Min: 26° Sep Max: 35° Average: 30° Min: 26° Oct Max: 38° Average: 31° Min: 26° Nov Max: 37° Average: 29° Min: 23° Dec Max: 33° Average: 26° Min: 20°
Max
Average
Min

Rosso sees moderate temperature variation throughout the year, ranging from 19°C to 39°C. May is the hottest month, with daytime highs reaching 39°C and an average of 29°C. January is the coolest month, with minimum temperatures around 19°C and an average of 25°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 0mm Feb Precipitation: 0mm Mar Precipitation: 0mm Apr Precipitation: 0mm May Precipitation: 0mm Jun Precipitation: 4mm Jul Precipitation: 12mm Aug Precipitation: 55mm Sep Precipitation: 53mm Oct Precipitation: 7mm Nov Precipitation: 0mm Dec Precipitation: 1mm
Precipitation

Rosso is a quite dry location, receiving approximately 132mm of precipitation annually, which averages out to around 11mm per month. The wettest month is August, averaging 55mm of rainfall. September and July also tend to see above-average precipitation. The driest month is January, with just 0mm. That's 55mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 22km/h Feb Wind Speed: 24km/h Mar Wind Speed: 24km/h Apr Wind Speed: 26km/h May Wind Speed: 25km/h Jun Wind Speed: 25km/h Jul Wind Speed: 24km/h Aug Wind Speed: 22km/h Sep Wind Speed: 20km/h Oct Wind Speed: 21km/h Nov Wind Speed: 21km/h Dec Wind Speed: 22km/h
Wind Speed

Rosso is moderately windy, with an average annual wind speed of 23km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 20km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Rosso, which began on March 20, 2026. Rosso is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in May at around 39°C, while the coldest stretch bottoms out in January near 19°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 20 to 39°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are moderate at around 25km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 24 to 38°C. Rainfall is relatively light, with around 71mm over the season and a monthly average of 24mm. Winds are moderate at around 24km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 38°C. Rainfall is relatively light, with around 60mm over the season and a monthly average of 20mm. Winds are moderate at around 21km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 19 to 34°C. Precipitation is minimal, with only around 1mm for the entire season. Winds are moderate at around 23km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Rosso based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
19 °C
33 °C
22 km/h
0 mm
0 cm
Feb
20 °C
34 °C
24 km/h
0 mm
0 cm
Mar Current
20 °C
36 °C
24 km/h
0 mm
0 cm
Apr
22 °C
38 °C
26 km/h
0 mm
0 cm
May
23 °C
39 °C
25 km/h
0 mm
0 cm
Jun
24 °C
38 °C
25 km/h
4 mm
0 cm
Jul
26 °C
36 °C
24 km/h
12 mm
0 cm
Aug
26 °C
35 °C
22 km/h
55 mm
0 cm
Sep
26 °C
35 °C
20 km/h
53 mm
0 cm
Oct
26 °C
38 °C
21 km/h
7 mm
0 cm
Nov
23 °C
37 °C
21 km/h
0 mm
0 cm
Dec
20 °C
33 °C
22 km/h
1 mm
0 cm
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Metric (°C, km/h)