September Weather in Isale, Burundi

Last updated: August 22, 2025

In September, the average temperature in Isale, Burundi is a comfortable 21°C (70°F), with temperatures ranging from a cool 14°C (57°F) to a warm 31°C (88°F). Expect 270 mm (10.6 in) of precipitation over 19 days, contributing to an average humidity of 70%. Perfect for enjoying the lush scenery this season brings!

September Temperature in Isale

In September in Isale, the average temperature is 21°C (70°F). Maximums can reach 31°C (88°F) and minimums can be as low as 14°C (57°F). This pleasant climate makes Isale an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Isale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isale, September typically has an average temperature of 21°C (70°F), with highs reaching up to 31°C (88°F) and lows dropping to around 14°C (57°F).

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

September Precipitation in Isale

In Isale in September, the total precipitation amount is 270 mm (10.6 in) over the course of 19 days.

September Precipitation Trends in Isale

The chart displays monthly precipitation patterns in Isale, 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 Isale, September typically receives around 270 mm (10.6 inches) of precipitation spread over approximately 19 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 Isale

In Isale in September, humidity is 70%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace, making travel slightly uncomfortable, as the air clings to your skin and can leave you feeling sticky and in need of frequent breaks to cool down.

September Average Humidity in Isale

This chart illustrates the average monthly humidity levels in Isale, 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 Isale is approximately 70%, 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 Isale

In Isale in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Isale, you can check here.

Maximum UV Index Levels in Isale for September

The chart shows the monthly maximum UV Index (UVI) for Isale 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 Isale typically reaches 14, which falls under the extreme exposure category.

Data source: Isale 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 Isale Compares to Other Months

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

This table compares monthly weather conditions in Isale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	395 mm (15.5 inches)	84%	extreme
February Weather	20°C (69°F)	491 mm (19.3 inches)	82%	extreme
March Weather	20°C (69°F)	541 mm (21.3 inches)	78%	extreme
April Weather	20°C (68°F)	560 mm (22.0 inches)	81%	extreme
May Weather	20°C (69°F)	414 mm (16.3 inches)	87%	extreme
June Weather	20°C (68°F)	78 mm (3.1 inches)	78%	extreme
July Weather	20°C (68°F)	51 mm (2.0 inches)	70%	extreme
August Weather	20°C (69°F)	175 mm (6.9 inches)	66%	extreme
September Weather	21°C (70°F)	270 mm (10.6 inches)	70%	extreme
October Weather	21°C (69°F)	651 mm (25.6 inches)	83%	extreme
November Weather	20°C (69°F)	613 mm (24.1 inches)	91%	extreme
December Weather	20°C (68°F)	687 mm (27.1 inches)	92%	extreme