September Weather in Grootfontein, Namibia

Last updated: August 31, 2025

In Grootfontein, Namibia, the average temperature in September hovers around 24°C (75°F). However, you might experience a minimum of 7°C (45°F) and a maximum of 35°C (96°F). Expect minimal precipitation—just 1 mm (0.0 in) over 0 days—and enjoy the comfortable atmosphere with an average humidity of just 17%.

September Temperature in Grootfontein

In September in Grootfontein, the average temperature is 24°C (75°F), with maximums reaching 35°C (96°F) and minimums dipping as low as 7°C (45°F). This variation in temperature makes Grootfontein an ideal destination for travelers seeking both warmth and cooler evenings.

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

The chart illustrates September temperature patterns in Grootfontein, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grootfontein, September typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Grootfontein

In Grootfontein in September, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.

September Precipitation Trends in Grootfontein

The chart displays monthly precipitation patterns in Grootfontein, 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 Grootfontein, September typically receives around 1 mm (0.0 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 Grootfontein

In Grootfontein in September humidity is 17%. With an average temperature of 24°C (75°F), this humidity feels like a comfortable embrace, making it ideal for exploring the sights and enjoying outdoor activities without feeling overheated.

September Average Humidity in Grootfontein

This chart illustrates the average monthly humidity levels in Grootfontein, 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 Grootfontein is approximately 17%, 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 Grootfontein

In Grootfontein in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Grootfontein.

Maximum UV Index Levels in Grootfontein for September

The chart shows the monthly maximum UV Index (UVI) for Grootfontein 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 Grootfontein typically reaches 13, which falls under the extreme exposure category.

Data source: Grootfontein 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 Grootfontein Compares to Other Months

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

This table compares monthly weather conditions in Grootfontein, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	190 mm (7.5 inches)	83%	extreme
February Weather	23°C (73°F)	206 mm (8.1 inches)	83%	extreme
March Weather	22°C (72°F)	116 mm (4.6 inches)	78%	extreme
April Weather	20°C (69°F)	50 mm (2.0 inches)	67%	extreme
May Weather	18°C (65°F)	0 mm (0.0 inches)	46%	very high
June Weather	16°C (60°F)	0 mm (0.0 inches)	33%	very high
July Weather	15°C (59°F)	0 mm (0.0 inches)	26%	very high
August Weather	19°C (67°F)	0 mm (0.0 inches)	19%	very high
September Weather	24°C (75°F)	1 mm (0.0 inches)	17%	extreme
October Weather	26°C (78°F)	21 mm (0.8 inches)	21%	extreme
November Weather	26°C (79°F)	50 mm (2.0 inches)	45%	extreme
December Weather	25°C (78°F)	101 mm (4.0 inches)	73%	extreme