Niamey Weather in September
During September, Niamey experiences extremely high daytime temperatures of 36°C (97°F) and cooler nights around 25°C (77°F). Some rainfall is typical during this period.
Rainfall in Niamey in September
Based on our climate data of the past 30 years, about 10 days of rain are anticipated, with 49 mm (1.9 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Niamey in September
Niamey in September gets highs of 36°C (97°F) during the day and drops to 25°C (77°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Niamey in September
Expect a lot of sunshine this month, with about 228 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Niamey in September
Average wind conditions reach 1 m/s (2 knots) in September. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Niamey. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Niger, check out our Niamey's climate page.
Niamey Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
36°C (97°F)
Chance of Rain
33%
Precipitation
49 mm (1.9 in)
Rainy days
10 days
Humidity
75%
Windspeed
1 m/s (2 knots)
Sunshine
228 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Niamey typically rise from around 33°C (91°F) at the start of September to approximately 36°C (97°F) by the end. Nights are warm, with lows typically ranging from 24°C (75°F) to 26°C (79°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Niamey in September
Browse day-by-day weather records for Niamey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Niamey historical weather extremes in September
Based on 28 years of weather observations (1997-2025), these are the most extreme conditions recorded in Niamey.
- Niamey recorded its highest September temperature of 41°C (106°F) on September 27, 2023.
- The lowest daytime temperature in September was 25°C (77°F), recorded on September 30, 1998.
- The coldest night in September in Niamey was on September 14, 2018, with a minimum of 19°C (66°F).
Best Places in Niger in September
Find out more about the weather in Niger and which places have the best travel conditions in this month. See all of Niger in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Niamey in September
Pack for serious heat in Niamey in September. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Niamey in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Niger, check out our Niamey's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Niamey climate overview or explore weather in Niger.
