September Weather in Diffa, Niger

Last updated: August 31, 2025

In September, the average temperature in Diffa, Niger hovers around 29°C (85°F), with minimums dipping to 23°C (73°F) and occasional maximums soaring to 39°C (103°F). Expect a precipitation amount of 29 mm (1.1 in) over about 5 days, all while enjoying an average humidity of 79%.

September Temperature in Diffa

In September in Diffa, the average temperature is 29°C (85°F). Maximums can reach 39°C (103°F), and minimums can be as low as 23°C (73°F). This makes Diffa an ideal destination for travelers seeking warm and sunny weather.

September Weather in Diffa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Diffa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Diffa, September typically has an average temperature of 29°C (85°F), with highs reaching up to 39°C (103°F) and lows dropping to around 23°C (73°F).

Data source: Temperature data for Diffa generated using information from the Copernicus Climate Change Service.

September Precipitation in Diffa

In Diffa in September, the total precipitation amount is 29 mm (1.1 in) recorded over a span of 5 days.

September Precipitation Trends in Diffa

The chart displays monthly precipitation patterns in Diffa, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Diffa, September typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Diffa

In Diffa in September, humidity is 79%. With an average temperature of 29°C (85°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sticky and exhausting.

September Average Humidity in Diffa

This chart illustrates the average monthly humidity levels in Diffa, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Diffa is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Diffa

In Diffa in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Diffa.

Maximum UV Index Levels in Diffa for September

The chart shows the monthly maximum UV Index (UVI) for Diffa in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Diffa typically reaches 12, which falls under the extreme exposure category.

Data source: Diffa September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Diffa Compares to Other Months

Weather in Diffa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Diffa, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Diffa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	0 mm (0.0 inches)	14%	very high
February Weather	24°C (75°F)	0 mm (0.0 inches)	10%	extreme
March Weather	30°C (85°F)	0 mm (0.0 inches)	9%	extreme
April Weather	33°C (91°F)	0 mm (0.0 inches)	17%	extreme
May Weather	34°C (94°F)	3 mm (0.1 inches)	41%	extreme
June Weather	33°C (91°F)	22 mm (0.9 inches)	65%	extreme
July Weather	30°C (86°F)	42 mm (1.7 inches)	71%	extreme
August Weather	28°C (82°F)	162 mm (6.4 inches)	78%	extreme
September Weather	29°C (85°F)	29 mm (1.1 inches)	79%	extreme
October Weather	30°C (86°F)	10 mm (0.4 inches)	65%	extreme
November Weather	27°C (81°F)	0 mm (0.0 inches)	27%	very high
December Weather	23°C (74°F)	0 mm (0.0 inches)	17%	very high