Climate and monthly weather forecast
Guelta Zemmur, Western Sahara

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The climate of Guelta Zemmur

Taking into account the data recorded, Guelta Zemmur displays characteristics of the subtropical desert climatic type, classified as BWh under the Köppen climate classification. This settlement is positioned within the geographical confines of the Western Sahara.

Throughout the year, Guelta Zemmur experiences a wide range of temperatures. Low temperatures fluctuate from 11.1°C (52°F) to 26.3°C (79.3°F), while high temperatures show a broader range, from 21.8°C (71.2°F) to 41.2°C (106.2°F). The significant variation in temperature can be attributed to the desert climate, which is known for its extremes.

Guelta Zemmur experiences infrequent rainfall with maximum precipitation of 17mm (0.67") received in October and minimum precipitation of under 1mm (0.04") from February to March. Despite the sporadic rain, the relative humidity remains relatively stable throughout the year, ranging from 26 to 41%.

The interesting factor in the climate of Guelta Zemmur is the consistent amount of sunshine received throughout the year. The location registers 8.1 sunshine hours to 12.1 sunshine hours per day, indicating abundant sunlight virtually all year round. The wind speed also varies considerably, from 15.9km/h (9.9mph) in October to 25.7km/h (16mph) in July.

The best time to visit Guelta Zemmur

Considering the weather patterns, it can be inferred that the most suitable period to visit Guelta Zemmur would be between April and May. These months offer temperatures ranging from 14.6°C (58.3°F) to 18.2°C (64.8°F), which are milder in comparison to the extreme temperatures experienced in the rest of the year. Additionally, the relative humidity is comfortably in the mid-thirties%, allowing one to enjoy the undisturbed beauty of the desert town.

Moreover, these are months that deliver about 13.4 to 13.7 daylight hours, which ensures that the visitors have ample time to explore the region. The rainfall is also minimal with each month receiving just 2 to 3mm (0.12"), further establishing these months as the best time to visit Guelta Zemmur.

The worst time to visit Guelta Zemmur

The period between July to August is likely the most challenging time to visit Guelta Zemmur. The temperature soars up to a sweltering 41.2°C (106.2°F) - 40.9°C (105.6°F) during these months and in conjunction with the high temperature, the relative humidity falls to its lowest at around 26% leading to arid conditions.

Not only is the heat intense, but the wind speed reaches its peak at 25.7km/h (16mph) to 23km/h (14.3mph), leading to harsh, dusty conditions. Hence, this period is not advisable for visits.

Spring weather in Guelta Zemmur

Spring brings in pleasant weather at Guelta Zemmur. Spanning from March to May, the daily high temperatures range from 27.9°C (82.2°F) to 33.4°C (92.1°F). Nights, however, are comparatively temperate with temperatures from 14.6°C (58.3°F) to 18.2°C (64.8°F). Rainfall keeps to its minimum, ranging from no rainfall in March to 3mm (0.12") in May.

Summer weather in Guelta Zemmur

The summer months, June through August, present the most extreme weather conditions in Guelta Zemmur. Temperatures escalate to 36°C (96.8°F) in June, reaching an apex at 41.2°C (106.2°F) in July, and slightly lowering to 40.9°C (105.6°F) in August.

Autumn weather in Guelta Zemmur

Moving towards autumn, from September to November, temperatures assume a modest range with a high of 35.8°C (96.4°F) in September reducing to 26.3°C (79.3°F) by November. The rainfall patterns show an interesting increase, marking the highest precipitation in October with 17mm (0.67") of rainfall.

Winter weather in Guelta Zemmur

The winter season in Guelta Zemmur, from December to February, witnesses temperatures between 21.8°C (71.2°F) and 24°C (75.2°F). Along with lowering temperatures, December and January also register the lowest wind speed in the year, marking 16.1km/h (10mph) and 18km/h (11.2mph) respectively.

Weather in January

Moving from December to January, Guelta Zemmur weather tends to be characterized by relatively moderate temperatures and minimal precipitation. An interesting feature is the low rainfall, being essentially negligible, at 1mm (0.04") for the month. Weather in January »

Weather in February

As the calendar turns to February, Guelta Zemmur indicates marginal changes in its weather attributes. The relative humidity remains steady at 39%, showing no significant variation from January. With the transition from winter to spring, the cloud percentage remains almost unchanged. Weather in February »

Weather in March

March sees a slight increase in temperature, predicting the upcoming seasonal changes. The noteworthy shift occurs in the rainfall pattern with hardly any rainfall in March, recording 0mm (0") for the month. Despite the rise in temperatures, the relative humidity shows a reduction signifying a decrease in moisture content. Weather in March »

Weather in April

April introduces a modest increase in temperature, attributing to a warm and pleasant climate. While there is a minor increase in rainfall, with 2mm (0.08") recorded, it hardly makes any considerable difference to the overall weather pattern. Weather in April »

Weather in May

Shifting from April to May, Guelta Zemmur records a noticeable rise in temperatures. May stands out for its maximum daylight hours, reaching up to 13.4 hours out of a 24-hour day. However, concurrently, this month also witnesses a slight increase in rainfall from the previous month. Weather in May »

Weather in June

June witnesses a further increase in temperature and humidity, signifying the onset of summer in Guelta Zemmur. An interesting observation is the maximum hours of sunshine, reaching up to 12.1 hours/day. Despite this, the cloud cover, rainfall, and pressure show little to no variations from the previous months. Weather in June »

Weather in July

July can be considered the hottest month of the year in Guelta Zemmur with the temperature going as high as 41.2°C (106.2°F). It is also the time of the year when the relative humidity dips to 26%, its lowest throughout the year. Weather in July »

Weather in August

August tends to continue the heat wave from July in Guelta Zemmur. Observably, this month records the highest minimum temperature, peaking at 26.3°C (79.3°F). In addition, it brings along the year's maximum rainfall at 8mm (0.31"). Weather in August »

Weather in September

September in Guelta Zemmur brings a relief from the extreme heat of the past couple of months. What marks this month is the highest rainfall days, shooting up to 6.8 during the entire period. However, the temperature begins to fall gradually, making the weather more bearable. Weather in September »

Weather in October

October sees a significant change in weather patterns with temperatures dipping further. The largest amount of rainfall for the year is observed, being 17mm (0.67"). However, the cloud percentage and the amount of daylight hours remain almost consistent with the previous month. Weather in October »

Weather in November

November marks the arrival of cooler temperatures in Guelta Zemmur, signaling the transition to winter. An appreciable decrease in rainfall, down to 2mm (0.08"), signifies the drier nature of the weather in this month. The cloud percentage increase slightly, reducing the number of sunshine hours. Weather in November »

Weather in December

December brings further lowering temperatures, making it one of the coolest months in Guelta Zemmur. The cloud cover increases to 11%, slightly reducing the daytime sunlight hours. A comforting aspect of this month is the steady barometric pressure, averaging around 1020.1 mb. Weather in December »

Frequently asked questions

What month is the coldest?

January is the month that records the lowest temperatures, with averages ranging from a high of 21.8°C (71.2°F) to a low of 11.1°C (52°F).

How many days does it rain?

In Guelta Zemmur, during the entire year, the rain falls for 25.5 days and collects up to 53mm (2.09") of precipitation.

What are the months with the lowest UV index?

January and December, with an average maximum UV index of 5, are months with the lowest UV index.

What is the driest month?

March is the only month when rain does not fall.

When is Daylight Saving Time (DST)?

On Sunday, 10. March 2024, at 03:00, Daylight Saving Time starts, and the time zone changes from +01 to +00. Daylight Saving Time ends on Sunday, 14. April 2024, at 02:00, and the time zone reverts from +00 to +01.

When does it rain?

January, February, April through December are months with rainfall.

When are the longest days?

June has the longest days of the year, with an average of 13h and 42min of daylight.

What month has the most sunshine in Guelta Zemmur?

With an average of 12.1h of sunshine, June has the most sunshine of the year.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 8.

What part of the year is the hottest?

July, marked by an average high-temperature of 41.2°C (106.2°F) and a low-temperature of 24.8°C (76.6°F), is the warmest month.

What are the least humid months?

The months with the lowest humidity are July and August, with an average relative humidity of 26%.

What is the wettest month?

October is the month with the most rainfall. Rain falls for 3 days and accumulates 17mm (0.67") of precipitation.

What is the most humid month?

With an average relative humidity of 41%, November is the most humid month.

What is the month with the least sunshine?

The month with the least sunshine is November, with an average of 8.1h of sunshine.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 36min of daylight.

Average temperature
Guelta Zemmur, Western Sahara

Average temperature - Guelta Zemmur, Western Sahara

The warmest month (with the highest average high temperature) is July (41.2°C).
The month with the lowest average high temperature is January (21.8°C).

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is January (11.1°C).

Average pressure
Guelta Zemmur, Western Sahara

Average pressure - Guelta Zemmur, Western Sahara

The month with the highest atmospheric pressure is January (1020.5mbar).
The month with the lowest atmospheric pressure is August (1010.5mbar).

Average wind speed
Guelta Zemmur, Western Sahara

Average wind speed - Guelta Zemmur, Western Sahara

The windiest month (with the highest average wind speed) is July (25.7km/h).
The calmest month (with the lowest average wind speed) is October (15.9km/h).

Average humidity
Guelta Zemmur, Western Sahara

Average humidity - Guelta Zemmur, Western Sahara

The month with the highest relative humidity is November (41%).
The months with the lowest relative humidity are July and August (26%).

Average rainfall
Guelta Zemmur, Western Sahara

Average rainfall - Guelta Zemmur, Western Sahara

The wettest month (with the highest rainfall) is October (17mm).
The driest month (with the least rainfall) is March (0mm).

Average rainfall days
Guelta Zemmur, Western Sahara

Average rainfall days - Guelta Zemmur, Western Sahara

The month with the highest number of rainy days is September (6.8 days).
The month with the least rainy days is December (0.7 days).

Average daylight / Average sunshine
Guelta Zemmur, Western Sahara

Average daylight / Average sunshine - Guelta Zemmur, Western Sahara

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).

Average sunshine days
Guelta Zemmur, Western Sahara

Average sunshine days - Guelta Zemmur, Western Sahara

The month with the most sunshine days is December (30.3 days).
The month with the least sunshine days is September (21.6 days).

Average UV index
Guelta Zemmur, Western Sahara

Average UV index - Guelta Zemmur, Western Sahara

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 5).

Average visibility
Guelta Zemmur, Western Sahara

Average visibility - Guelta Zemmur, Western Sahara

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).

Guelta Zemmur, Western Sahara

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