Niamey weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Fair
Best time to visit: December – January
What is the weather like in Niamey in September?
In September, Niamey is very hot: daytime highs average 35 °C, and even at night it stays warm at around 25 °C. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 43 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Niamey.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 39 | 46 | 50 |
| Day | 32° | 35° | 37° |
| Night | 24° | 25° | 24° |
| Sun | 7 h | 8 h | 9 h |
| Rain days | 15 | 6 | 2 |
More details for September
- Daylight
- 12 h 13 min06:40 – 18:54
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 49 %on averageAll months
- Hot days
- 29 days30 °C or moreAll months
- Time zone
- UTC+1Africa/Niamey
How the score comes together
- Temperatureweight 50 %6 %
- Sunshineweight 20 %88 %
- Few rainy daysweight 30 %83 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Niamey in September: quick answers
Is Niamey hot in September?
Yes. In September, Niamey is very hot: daytime highs average 35 °C and nights stay around 25 °C. On about 29 days the thermometer climbs to 30 °C or more.
Does it rain much in Niamey in September?
Rain falls on about 6 days, adding up to 43 mm.
Niamey month by month
The whole year in NiameyAll destinations: NigerWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences