Niamey, Niger Climate & Monthly Averages
The climate of Niamey
Niamey has a tropical wet-and-dry climate, marked by year-round warmth split between a rainy season and a pronounced dry season. Average daytime highs range from about 90°F (32°C) in January to around 105°F (41°C) in May, and the city records roughly 44 days of measurable precipitation a year.
Climate quick facts
- Hottest month: May - highs near 105°F (41°C)
- Coldest month: January - highs near 90°F (32°C)
- Record high: 112°F (44°C) · Record low: 53°F (12°C) (2015–2024)
- Wettest month: August (16 rainy days) · Sunniest: May (11.0 h sun/day)
- Climate type: tropical wet-and-dry - year-round warmth split between a rainy season and a pronounced dry season
Temperatures through the year
The warmest stretch of the year centers on May. Highs average 105°F (41°C) and overnight lows stay near 84°F (29°C). The coolest month is January, with typical highs of 90°F (32°C) and lows around 62°F (16°C). Based on 2015–2024 weather data, temperatures have reached as high as 112°F (44°C) and dropped as low as 53°F (12°C).
Rain, sun and snow
August is usually the wettest month. It brings about 6.1 inches (155 mm) of rain over 16 days, while January is the driest. May brings the most sunshine, averaging 11.0 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 90° | 62° | 0 | 0.0 in | 10.3 h/day | 15% |
| February | 95° | 66° | 0 | 0.0 in | 10.6 h/day | 13% |
| March | 102° | 74° | 0 | 0.0 in | 10.8 h/day | 14% |
| April | 106° | 79° | 0 | 0.0 in | 10.9 h/day | 20% |
| May | 105° | 84° | 2 | 0.3 in | 11.0 h/day | 36% |
| June | 100° | 82° | 5 | 1.3 in | 10.8 h/day | 50% |
| July | 94° | 78° | 12 | 3.0 in | 10.2 h/day | 64% |
| August | 89° | 76° | 16 | 6.1 in | 9.3 h/day | 75% |
| September | 93° | 77° | 7 | 1.8 in | 10.2 h/day | 68% |
| October | 99° | 76° | 2 | 0.3 in | 10.6 h/day | 44% |
| November | 97° | 69° | 0 | 0.0 in | 10.9 h/day | 22% |
| December | 91° | 64° | 0 | 0.0 in | 10.6 h/day | 18% |
Niamey month by month
Niamey weather in January
January brings highs around 90°F (32°C), lows near 62°F (16°C), about 0 wet days - typically the coldest month and the driest month of the year in Niamey.
Niamey weather in February
February brings highs around 95°F (35°C), lows near 66°F (19°C), about 0 wet days.
Niamey weather in March
March brings highs around 102°F (39°C), lows near 74°F (23°C), about 0 wet days.
Niamey weather in April
April brings highs around 106°F (41°C), lows near 79°F (26°C), about 0 wet days.
Niamey weather in May
May brings highs around 105°F (41°C), lows near 84°F (29°C), about 2 wet days - typically the hottest month and the sunniest month of the year in Niamey.
Niamey weather in June
June brings highs around 100°F (38°C), lows near 82°F (28°C), about 5 wet days.
Niamey weather in July
July brings highs around 94°F (34°C), lows near 78°F (26°C), about 12 wet days.
Niamey weather in August
August brings highs around 89°F (32°C), lows near 76°F (24°C), about 16 wet days - typically the wettest month of the year in Niamey.
Niamey weather in September
September brings highs around 93°F (34°C), lows near 77°F (25°C), about 7 wet days.
Niamey weather in October
October brings highs around 99°F (37°C), lows near 76°F (24°C), about 2 wet days.
Niamey weather in November
November brings highs around 97°F (36°C), lows near 69°F (20°C), about 0 wet days.
Niamey weather in December
December brings highs around 91°F (33°C), lows near 64°F (18°C), about 0 wet days.
Seasons in Niamey
March through May
March through May in Niamey brings serious heat, with daytime highs averaging 104°F (40°C) and nights around 79°F (26°C); precipitation is infrequent.
June through August
June through August in Niamey turns very hot, with daytime highs averaging 95°F (35°C) and nights around 78°F (26°C); expect showers on roughly 33 days across the season.
September through November
September through November in Niamey turns very hot, with daytime highs averaging 96°F (36°C) and nights around 74°F (23°C); rain falls on about 9 days over the three months.
December through February
December through February in Niamey brings serious heat, with daytime highs averaging 92°F (33°C) and nights around 64°F (18°C); precipitation is infrequent.
Climate questions, answered
What is the average temperature in Niamey?
Is Niamey hot in summer?
Is Niamey cold in winter?
How many rainy days does Niamey get in a year?
Best time to visit Niamey
The best time to visit Niamey is generally September to November and January to February, when these months combine the driest skies with the most comfortable heat. Daytime temperatures in that window typically sit near 96°F (35°C).
Pack for Niamey with lightweight, breathable clothing and strong sun protection for the hot months; rain gear if you travel around August. Evenings can feel noticeably cooler than afternoons - May nights average 84°F (29°C).
Niamey temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.