Climate and monthly weather forecastChoum, Mauritania
Climate and monthly weather forecast
The climate of Choum
Choum, situated in Mauritania, takes on the characteristics of the BWh Koppen climate classification. This classification signifies that Choum has a distinct Subtropical Desert climate. The weather in this region ranges from moderately warm to extremely hot temperatures throughout the year, with an annual temperature bandwidth between 14.3°C (57.7°F) and 41.5°C (106.7°F).Over the annual cycle, Choum experiences wide variations in its climatological parameters. Relative humidity ranges from 17-27%, the lowest being in May and the highest in August, indicating drier conditions in spring and increased moisture during late summer. Rainfall is almost non-existent from January to May with a sharp increase in August and September where it reaches 11mm (0.43") and 9mm (0.35"), respectively.
Choum experiences significant daylight variation throughout the year, with the longest days in June (13.4 hours) and the shortest days in December (10.9 hours). Sunshine hours marginally fluctuate from 9.4 hours in January to a high of 9.9 hours from May to August, suggesting bright and clear skies for the most part of the year. Wind speeds vary minimally, averaging between 14.3km/h (8.9mph) to 18.2km/h (11.3mph) annually.
The distinct feature of Choum's climate is the lack of rainfall in the first half of the year, which contributes to the overall desert climate. Conversely, the relatively high humidity and the increased rainfall in August and September create a breather during approximately two months before the dry spell resumes.
The best time to visit Choum
Taking into account the climatological parameters of Choum, the most preferable time to visit would arguably be during autumn, precisely from October to November. During this period, the temperature starts to moderate from the extreme summer highs of 41.5°C (106.7°F) in July to more manageable numbers, averaging around 36.3°C (97.3°F) in October and 30.6°C (87.1°F) in November. Accompanying the pleasant temperatures is relatively low rainfall, balancing at 8mm (0.31") and 1mm (0.04") respectively, ensuring a more enjoyable visit.The worst time to visit Choum
Although Choum has its charms, the unfavorable period to plan a visit would be during the peak summer months, from June to September. The mercury touches its annual maximum of 41.5°C (106.7°F) in July. The heat, combined with the highest humidity levels of the year, which tops 27% in August, and increased rainfall of precipitation. In Choum, during the entire year, the rain falls for 25.2 days and collects up to 39mm (1.54") of precipitation. The average length of the day in May is 13h and 10min.On the first day of May, sunrise is at 06:20 and sunset at 19:17. On the last day of the month, sunrise is at 06:09 and sunset at 19:30 GMT. The months with the most sunshine are May, July and August, with an average of 9.9h of sunshine. The average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 8 translates into these guidelines:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Weather in June
The torrid summer month of June brings forth the highest temperatures of the year in Choum, Mauritania, peaking at a pinnacle value of 40.3°C (104.5°F). Despite these high temperatures, rainfall remains hardly prominent, though humidity rises slightly, creating somewhat sultry conditions. Weather in June »Weather in July
While July maintains the summer heat, it also brings a noticeable increase in the number of rainfall days. An equally insufficient frequency of rainfall persists, failing to provide much respite from the heat. Also, the daylight duration slightly contracts signifying that the days start to get shorter. Weather in July »Weather in August
August is a month of notable changes in Choum, Mauritania when weather patterns begin their transition exclusively due to the significant increase in the average number of rainfall days to 5.2. The city experiences augmented humidity due to high temperatures and the gradual shift in climatic conditions. Weather in August »Weather in September
September serves as a turning point in the weather of Choum, Mauritania with perceivable changes in a number of climatic aspects. The increased rainfall presents noticeable relief from previous scorching months. The city also witnesses a decrease in daylight and sunshine hours, indicating the arrival of shorter days. Weather in September »Weather in October
In October, it seems apparent that the heat of the summer is gradually retreating in Choum. A continued decrease in temperatures, coupled with a reduction in the amount of rainfall, paints a picture of transition towards the cooler months. Weather in October »Weather in November
November in Choum, Mauritania marks significant dips in temperature, daylight hours and relative humidity, all indications of an approaching winter. This month also witnesses the retreat of the rainy season with negligible rainfall observed. Weather in November »Weather in December
December brings with it the onset of winter in Choum, Mauritania with a further drop in temperatures and a decrease in daylight hours. Despite these changes, humidity stays almost constant. Nevertheless, the climate remains largely arid with negligible precipitation and even the cloud coverage remains sparse. Weather in December »Updated: Jun 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average high-temperature of 26.2°C (79.2°F) and an average low-temperature of 14.3°C (57.7°F), January is the coldest month.
In Choum, rain does not fall in January through April.
Throughout the year, there are 25.2 rainfall days, and 39mm (1.54") of precipitation is accumulated.
With an average of 9.4h of sunshine, January has the least sunshine of the year in Choum.
The least humid month is May, with an average relative humidity of 17%.
Months with rainfall are May through December.
May, July and August, with an average of 9.9h of sunshine, are months with the most sunshine.
With an average of 13h and 24min of daylight, June has the longest days of the year.
With an average maximum UV index of 9, June is the month with the highest UV index.
July is the month when Choum sees the average highest temperatures, with a high of 41.5°C (106.7°F) and a low of 28.8°C (83.8°F).
August is the most humid month, with an average relative humidity of 27%.
September is the month with the most rainfall. Rain falls for 6.2 days and accumulates 11mm (0.43") of precipitation.
With an average of 10h and 54min of daylight, December has the shortest days of the year.
Choum does not utilize Daylight Saving Time (DST). GMT timezone is used over the entire year.
The month with the lowest UV index is December, with an average maximum UV index of 5.
Average temperature
Choum, Mauritania
The warmest month (with the highest average high temperature) is July (41.5°C).
The month with the lowest average high temperature is January (26.2°C).
The month with the highest average low temperature is August (29.7°C).
The coldest month (with the lowest average low temperature) is January (14.3°C).
Average pressure
Choum, Mauritania
- Average pressure in January:
1017.5mbar - Average pressure in February:
1015.5mbar - Average pressure in March:
1013.3mbar - Average pressure in April:
1011.4mbar - Average pressure in May:
1010.8mbar - Average pressure in June:
1011mbar
- Average pressure in July:
1009.3mbar - Average pressure in August:
1009.2mbar - Average pressure in September:
1010.9mbar - Average pressure in October:
1012mbar - Average pressure in November:
1013.9mbar - Average pressure in December:
1016.9mbar
The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is August (1009.2mbar).
Average wind speed
Choum, Mauritania
- Average wind speed in January:
18km/h - Average wind speed in February:
17.9km/h - Average wind speed in March:
16.3km/h - Average wind speed in April:
15.4km/h - Average wind speed in May:
15.8km/h - Average wind speed in June:
17.7km/h
- Average wind speed in July:
17km/h - Average wind speed in August:
15.6km/h - Average wind speed in September:
15.2km/h - Average wind speed in October:
14.7km/h - Average wind speed in November:
14.3km/h - Average wind speed in December:
18.2km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is November (14.3km/h).
Average humidity
Choum, Mauritania
The month with the highest relative humidity is August (27%).
The month with the lowest relative humidity is May (17%).
Average rainfall
Choum, Mauritania
The wettest month (with the highest rainfall) is September (11mm).
The driest months (with the least rainfall) are January, February, March and April (0mm).
Average rainfall days
Choum, Mauritania
- Average rainfall days in January:
0.5 days - Average rainfall days in February:
0.3 days - Average rainfall days in March:
0.7 days - Average rainfall days in April:
1.4 days - Average rainfall days in May:
1.8 days - Average rainfall days in June:
2.2 days
- Average rainfall days in July:
3.1 days - Average rainfall days in August:
5.2 days - Average rainfall days in September:
6.2 days - Average rainfall days in October:
3.3 days - Average rainfall days in November:
0.4 days - Average rainfall days in December:
0.1 days
The month with the highest number of rainy days is September (6.2 days).
The month with the least rainy days is December (0.1 days).
Average daylight / Average sunshine
Choum, Mauritania
- Average daylight in January:
11h and 0min - Average daylight in February:
11h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 12min - Average daylight in June:
13h and 24min
- Average daylight in July:
13h and 18min - Average daylight in August:
12h and 48min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 6min - Average daylight in December:
10h and 54min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in January:
9h and 24min - Average sunshine in February:
9h and 36min - Average sunshine in March:
9h and 42min - Average sunshine in April:
9h and 48min - Average sunshine in May:
9h and 54min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 48min - Average sunshine in October:
9h and 42min - Average sunshine in November:
9h and 42min - Average sunshine in December:
9h and 36min
The months with the most sunshine are May, July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 9h and 24min).
Average sunshine days
Choum, Mauritania
- Average sunshine days in January:
30.4 days - Average sunshine days in February:
27.9 days - Average sunshine days in March:
30.4 days - Average sunshine days in April:
28.8 days - Average sunshine days in May:
28.3 days - Average sunshine days in June:
26.3 days
- Average sunshine days in July:
27.5 days - Average sunshine days in August:
24 days - Average sunshine days in September:
22.5 days - Average sunshine days in October:
27.3 days - Average sunshine days in November:
29.6 days - Average sunshine days in December:
30.9 days
The month with the most sunshine days is December (30.9 days).
The month with the least sunshine days is September (22.5 days).
Average UV index
Choum, Mauritania
The month with the highest UV index is June (UV index 9).
The month with the lowest UV index is December (UV index 5).
Average cloud cover
Choum, Mauritania
The month with the most cloud cover is September (Cloud cover 14).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility
Choum, Mauritania
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
