The weather in September in Niamey

It's hot in September in Niamey with an average temperature of 39°C. Temperatures this month range from a low of 36°C to a high of 40°C. At night, you can expect temperatures between 25°C and 28°C.

September isn’t a good month to be in Niamey. The average temperature of 39°C this month is uncomfortably hot for a comfortable stay.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Niamey, Niger. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 43°C in 2021, Niamey reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 29°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 20°C to a highest value of 31°C.

Rainfall amount

In September, there is an average of 39 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in September for Niamey

Click on any day in September to get detailed info about the usual weather on that day in Niamey. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Niamey New York
Average temperature 39°C 27°C
Max. temperature 40°C 31°C
Min. temperature 25°C -5°C
Total precipitation 39 mm 57 mm
Rainy days 6 days 9 days

Start of September

The month of September starts in Niamey with hot temps, averaging around 38°C during the day and nights around 26°C.

Mid September

By mid-September, daytime temps rise to around 39°C, with nights around 27°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of September

By the end of September, the average daytime temperature in Niamey is around 40°C, while nighttime temps are about 27°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

UV index

The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Niamey for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Niamey, Niger. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Niamey

Temperature in September in Niamey over the years

Precipitation charts

These charts show the average amount of precipitation in September in Niamey, Niger. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Niamey

Total precipitation in September in Niamey over the years

Daily UV index in September in Niamey

This chart shows the average daily UV index in September in Niamey, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Niamey

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Average weather in Niamey by month

Click on a month below to see detailed weather info for Niamey. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.