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Contents
- The climate of Niamey
- The best time to visit Niamey
- The worst time to visit Niamey
- Spring weather in Niamey
- Summer weather in Niamey
- Autumn weather in Niamey
- Winter weather in Niamey
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
River Niger and city structures of the Niamey city in Niger
The climate of Niamey
Niamey, being the capital city of Niger, lies geographically in the Subtropical steppe zone. Classified under the BSh category through the Köppen climate classification, Niamey is predominantly warm throughout the year. The city's climatic variations are far from drastic, but the data demonstrates a noticeable pattern dependent on the seasons.
The temperature range varies from lesser degrees, recorded at 16.9°C (62.4°F), to soaring highs, topping 42.2°C (108°F). A constant trend indicates a gradual increase in highs and lows from January through to April, following which they plateau throughout the summer months and then taper off towards the year-end. Relative humidity follows an inverse pattern with the temperatures, starting the year at around 14% and gradually increasing up to a peak of 55% during the height of the rainy season in August, then receding back down to 14% by December.
Rainfall presents a distinct pattern, with dry months from November to March marked by almost no precipitation. The situation changes dramatically from April onwards when rainfall shoots up, peaking in August at 42mm (1.65") before it starts falling back down again.
The temperature range varies from lesser degrees, recorded at 16.9°C (62.4°F), to soaring highs, topping 42.2°C (108°F). A constant trend indicates a gradual increase in highs and lows from January through to April, following which they plateau throughout the summer months and then taper off towards the year-end. Relative humidity follows an inverse pattern with the temperatures, starting the year at around 14% and gradually increasing up to a peak of 55% during the height of the rainy season in August, then receding back down to 14% by December.
Rainfall presents a distinct pattern, with dry months from November to March marked by almost no precipitation. The situation changes dramatically from April onwards when rainfall shoots up, peaking in August at 42mm (1.65") before it starts falling back down again.
The best time to visit Niamey
Niamey is at its tourism prime during the early months of autumn, specifically from September to November. During this time, the temperatures begin to fall, averaging between 33.5°C (92.3°F) and 38.5°C (101.3°F), and the humidity begins its gradual decrease. Alongside this, the rainfall is relatively low but not entirely absent, alleviating some of the high temperatures. The daylight hours remain generous with more than 11 hours, ensuring plenty of time to engage in outdoor activities.
The worst time to visit Niamey
Planning a visit during the summer months might not work favorably for travelers due to harsh conditions that encompass high temperatures and humidity. Specifically, from May to August, the city experiences peaks in both temperature and humidity. Additionally, Niamey receives the highest amount of precipitation in these months. The challenging weather conditions alongside high average temperatures exceeding 39°C (102.2°F) can be uncomfortable and deter outdoor activities.
Spring weather in Niamey
Spring, from March through to June, sees a significant shift in the weather pattern. The average high temperature ranges from 40.3°C (104.5°F) to 41.8°C (107.2°F), and the lows fluctuate from 23.5°C (74.3°F) to 30.4°C (86.7°F). Humidity starts to surge from spring and peaks in summer. Simultaneously, the city experiences an onset of rainfall, gradually increasing from 1mm (0.04") in March to 12mm (0.47") in June.
Summer weather in Niamey
The summertime in Niamey from June to September is characterized by high temperatures, elevated humidity, and increased rainfall. The highest temperatures range from 39.8°C (103.6°F) to 36.8°C (98.2°F), while the average low temperatures hover between 30.4°C (86.7°F) and 28.2°C (82.8°F). Maximum rainfall is observed in August with an exceptional 42mm (1.65"), accompanied by increased humidity, driving the relative humidity up to 55%.
Autumn weather in Niamey
Autumn, from September to November, is a transitional phase where Niamey’s weather begins to cool down. The highest temperature decreases from 36.7°C (98.1°F) to 37°C (98.6°F), and the lowest varies between 26.9°C (80.4°F) to 23.3°C (73.9°F). Rainfall starts to diminish, averaging 9mm (0.35") in September, to a mere 0mm (0") by November. The daylight hours also lessen slightly but still provide ample sunlight.
Winter weather in Niamey
Winter sees a marked improvement in the climatic conditions from December through to February, making it an ideal time for local exploration. The high temperatures range from 33.5°C (92.3°F) to 37°C (98.6°F) while the average low temperature varies between 16.9°C (62.4°F) to 20°C (68°F). Precipitation remains virtually nonexistent during these months, with a relative humidity dropping to 15% by February. The ample sunshine and cooler temperature present a refreshing change from the summer’s heat and humidity.
Weather in January
The climate in Niamey, Niger, begins the year with a typically dry season. Following a chilly season in December, January brings in an increase in mean temperatures. Clear skies dominate the weather, resulting in an impressive 9.8 hours of sunshine each day. Weather in January »
Weather in February
The arid conditions persist into February, as Niamey continues its journey through the dry period. Temperatures see a slight climb from January's averages, signalling a warming trend. February still maintains low cloud cover, allowing for unimpeded sunlight around the clock. Weather in February »
Weather in March
In March, Niamey experiences a continued escalation in temperatures while moving deeper into the dry season. With the UV index reaching a heightened 8, protective measures against sunburn are recommended in the plentiful sunshine. Weather in March »
Weather in April
Commencing the second quarter of the year, the climate in Niamey turns significantly warm, punching in a high stretch of temperatures. April witnesses a distinct improvement in humidity levels, resulting in muggy mornings and warm afternoons. Weather in April »
Weather in May
Come May, the environment in Niamey sees the onset of the much-awaited wet season, marking a weather pattern redesign as the dry and arid conditions begin to alleviate. The weather introduces the concept of rain, with the quantity peaking to 7mm (0.28"), making this the first rainfall-maximum month. Weather in May »
Weather in June
June in Niamey ushers in an evident shift towards a wetter climate. With the arrival of the summer solstice, daylight peaks with a remarkable 12.9 hours of shine. On the flipside, this month exhibits a slight drop in the amount of full sunshine days at 23.5. Weather in June »
Weather in July
July showcases Niamey in a full-blown wet season mode. The temperature readouts plateau, providing relief from the constant escalation of the preceding months. The impressive rainfall and frequency of rainy days make it evident that the city is at the peak of its wet season. Weather in July »
Weather in August
Dominating the climatic conditions, August records the highest rainfall amount of the year at 42mm (1.65"). Subdued temperatures bring relief from the intense heat of the prior months. Humidity also records its peak, making the weather feel warmer than it is, however, the rainfall provides a respite. Weather in August »
Weather in September
As the wet season draws to a close, September in Niamey witnesses a gradual return of the hot and arid conditions typical of this Sahelian landscape. A fair decrease in rainfall from August's peak is observed, dropping more than a threefold to 9mm (0.35"). Weather in September »
Weather in October
October brings a significant decline in precipitation, from 9mm (0.35") in September to barely 7mm (0.28") this month. The weather adopts a milder stance as the cool, dry season starts to set in. The skies, once cloud-covered, are now vacant, allowing the sun to reinstate itself prominently. Weather in October »
Weather in November
With the wet season far behind, Niamey in November relishes the virtues of the dry season again. The return of the dry spell is quite evident as the rainfall seizes completely. Skies clear up further, offering unbridled sunshine. Weather in November »
Weather in December
The final month in Niamey, marking the end of a year-long weather cycle, is characterized by peak aridity. The cold, dry winds blowing at 14.7km/h (9.1mph) are reminiscent of January, indicating a full-cycle completion of Niamey's weather. Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Niamey?
Lowest temperatures are observed in January and December, averaging a high-temperature of 33.5°C (92.3°F).
What is the driest month in Niamey?
In Niamey, Niger, rain does not fall in January, November and December.
How much does it rain in Niamey?
Throughout the year, in Niamey, 99mm (3.9") of rain is accumulated.
When does it rain in Niamey?
February through October are months with rainfall in Niamey, Niger.
What are the months with the most sunshine in Niamey?
The months with the most sunshine in Niamey, Niger, are February, March, June, November and December, with an average of 9.9h of sunshine.
What is the least humid month in Niamey?
March is the least humid month in Niamey, Niger, with an average relative humidity of 12%.
What is the warmest month in Niamey?
In Niamey, April is the warmest month, with temperatures averaging a high of 42.2°C (108°F) and a low of 27.3°C (81.1°F).
What is the month with the highest UV index in Niamey?
The months with the highest UV index are April and May, with an average maximum UV index of 9.
When are the longest days in Niamey?
The month with the longest days is June, with an average of 12h and 54min of daylight.
What is the most humid month in Niamey?
With an average relative humidity of 55%, August is the most humid month in Niamey.
What is the wettest month in Niamey?
August is the month with the most rainfall in Niamey. Rain falls for 9.1 days and accumulates 42mm (1.65") of precipitation.
What is the month with the least sunshine in Niamey?
August has the least sunshine of the year in Niamey, Niger, with an average of 8.8h of sunshine.
What is the month with the shortest days in Niamey?
With an average of 11h and 18min of daylight, December has the shortest days of the year in Niamey.
Is there Daylight Saving Time (DST) in Niamey?
Niamey does not utilize Daylight Saving Time (DST). WAT timezone is used over the entire year.
When is the lowest UV index in Niamey?
December is the month with the lowest UV index, with an average maximum UV index of 6.
Average temperature
Niamey, Niger
The warmest month (with the highest average high temperature) is April (42.2°C).
The months with the lowest average high temperature are January and December (33.5°C).
The month with the highest average low temperature is May (30.4°C).
The coldest month (with the lowest average low temperature) is January (16.9°C).
Average pressure
Niamey, Niger
- Average pressure in January:
1012.8mbar - Average pressure in February:
1010.4mbar - Average pressure in March:
1008.4mbar - Average pressure in April:
1007mbar - Average pressure in May:
1007.6mbar - Average pressure in June:
1009.3mbar
- Average pressure in July:
1010.3mbar - Average pressure in August:
1010.7mbar - Average pressure in September:
1010.5mbar - Average pressure in October:
1009.3mbar - Average pressure in November:
1010.1mbar - Average pressure in December:
1012.5mbar
The month with the highest atmospheric pressure is January (1012.8mbar).
The month with the lowest atmospheric pressure is April (1007mbar).
Average wind speed
Niamey, Niger
- Average wind speed in January:
14.7km/h - Average wind speed in February:
14.1km/h - Average wind speed in March:
12.6km/h - Average wind speed in April:
11.2km/h - Average wind speed in May:
13.2km/h - Average wind speed in June:
14.5km/h
- Average wind speed in July:
14.7km/h - Average wind speed in August:
13.6km/h - Average wind speed in September:
11.6km/h - Average wind speed in October:
10.4km/h - Average wind speed in November:
11.3km/h - Average wind speed in December:
14.7km/h
The windiest months (with the highest average wind speed) are January, July and December (14.7km/h).
The calmest month (with the lowest average wind speed) is October (10.4km/h).
Average humidity
Niamey, Niger
The month with the highest relative humidity is August (55%).
The month with the lowest relative humidity is March (12%).
Average rainfall
Niamey, Niger
The wettest month (with the highest rainfall) is August (42mm).
The driest months (with the least rainfall) are January, November and December (0mm).
Average rainfall days
Niamey, Niger
- Average rainfall days in January:
0 days - Average rainfall days in February:
0.4 days - Average rainfall days in March:
1.3 days - Average rainfall days in April:
1.8 days - Average rainfall days in May:
3 days - Average rainfall days in June:
4.8 days
- Average rainfall days in July:
7.4 days - Average rainfall days in August:
9.1 days - Average rainfall days in September:
4.2 days - Average rainfall days in October:
2.6 days - Average rainfall days in November:
0 days - Average rainfall days in December:
0.1 days
The month with the highest number of rainy days is August (9.1 days).
The months with the least rainy days are January and November (0 days).
Average daylight / Average sunshine
Niamey, Niger
- Average daylight in January:
11h and 2min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 5min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 3min - Average daylight in December:
11h and 2min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in January:
9h and 5min - Average sunshine in February:
9h and 5min - Average sunshine in March:
9h and 5min - Average sunshine in April:
9h and 5min - Average sunshine in May:
9h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
8h and 5min - Average sunshine in September:
9h and 4min - Average sunshine in October:
9h and 5min - Average sunshine in November:
9h and 5min - Average sunshine in December:
9h and 5min
The months with the most sunshine are February, March, June, November and December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 8h and 48min).
Average sunshine days
Niamey, Niger
- Average sunshine days in January:
31 days - Average sunshine days in February:
27.7 days - Average sunshine days in March:
30.1 days - Average sunshine days in April:
28.5 days - Average sunshine days in May:
26.9 days - Average sunshine days in June:
23.5 days
- Average sunshine days in July:
23.1 days - Average sunshine days in August:
21.1 days - Average sunshine days in September:
25.5 days - Average sunshine days in October:
27.3 days - Average sunshine days in November:
30 days - Average sunshine days in December:
30.9 days
The month with the most sunshine days is January (31 days).
The month with the least sunshine days is August (21.1 days).
Average UV index
Niamey, Niger
The months with the highest UV index are April and May (UV index 9).
The month with the lowest UV index is December (UV index 6).
Average cloud cover
Niamey, Niger
The month with the most cloud cover is August (Cloud cover 30).
The months with the least cloud cover are November and December (Cloud cover 4).
Average visibility
Niamey, Niger
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).
Niamey, Niger
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