September Weather in Sumbe, Angola

Last updated: August 22, 2025

In September, the average temperature in Sumbe, Angola is a comfortable 21°C (70°F), with minimums dipping to 19°C (66°F) and maximums reaching 23°C (73°F). You can expect very little rain, with only 2 mm (0.1 in) over 0 days of precipitation, and the average humidity lingers around a refreshing 76%.

September Temperature in Sumbe

In September in Sumbe, the average temperature is 21°C (70°F). The maximum can reach 23°C (73°F) and the minimum can be as low as 19°C (66°F). This mild weather makes it an ideal time for exploring the area's attractions and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Sumbe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumbe, September typically has an average temperature of 21°C (70°F), with highs reaching up to 23°C (73°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Sumbe

In Sumbe in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

September Precipitation Trends in Sumbe

The chart displays monthly precipitation patterns in Sumbe, 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 Sumbe, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 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 Sumbe

In Sumbe in September, humidity is 76%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel more strenuous, prompting travelers to take frequent breaks and seek shade to stay comfortable during their adventures.

September Average Humidity in Sumbe

This chart illustrates the average monthly humidity levels in Sumbe, 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 Sumbe is approximately 76%, 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 Sumbe

In Sumbe in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Sumbe.

Maximum UV Index Levels in Sumbe for September

The chart shows the monthly maximum UV Index (UVI) for Sumbe 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 Sumbe typically reaches 10, which falls under the very high exposure category.

Data source: Sumbe 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 Sumbe Compares to Other Months

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

This table compares monthly weather conditions in Sumbe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	43 mm (1.7 inches)	86%	extreme
February Weather	26°C (79°F)	38 mm (1.5 inches)	86%	extreme
March Weather	27°C (80°F)	145 mm (5.7 inches)	87%	extreme
April Weather	27°C (80°F)	62 mm (2.4 inches)	86%	extreme
May Weather	25°C (78°F)	13 mm (0.5 inches)	85%	very high
June Weather	23°C (73°F)	8 mm (0.3 inches)	86%	very high
July Weather	21°C (70°F)	6 mm (0.2 inches)	83%	high
August Weather	20°C (68°F)	3 mm (0.1 inches)	81%	very high
September Weather	21°C (70°F)	2 mm (0.1 inches)	76%	very high
October Weather	23°C (75°F)	12 mm (0.5 inches)	74%	extreme
November Weather	25°C (78°F)	22 mm (0.9 inches)	85%	extreme
December Weather	25°C (77°F)	22 mm (0.8 inches)	84%	extreme