September Weather in Mariental, Namibia

Last updated: August 31, 2025

In September, the average temperature in Mariental, Namibia is a comfortable 22°C (71°F). However, temperatures can vary significantly, with a minimum of 3°C (37°F) and a maximum soaring up to 38°C (100°F). Expect minimal rain with only 1 mm (0.0 in) of precipitation over 0 days, and enjoy the pleasantly low average humidity of just 25%.

September Temperature in Mariental

In September, in Mariental, the average temperature is 22°C (71°F). Maximum temperatures can reach 38°C (100°F), while minimum temperatures can drop to as low as 3°C (37°F). Be prepared for a wide range of temperatures if you're planning to travel during this time!

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

The chart illustrates September temperature patterns in Mariental, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariental, September typically has an average temperature of 22°C (71°F), with highs reaching up to 38°C (100°F) and lows dropping to around 3°C (37°F).

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

September Precipitation in Mariental

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

September Precipitation Trends in Mariental

The chart displays monthly precipitation patterns in Mariental, 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 Mariental, 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 Mariental

In Mariental in September humidity is 25%. With an average temperature of 22°C (71°F), this humidity feels like a refreshing breeze, making travel comfortable and enjoyable as you explore the sights without feeling overheated or sticky.

September Average Humidity in Mariental

This chart illustrates the average monthly humidity levels in Mariental, 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 Mariental is approximately 25%, 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 Mariental

In Mariental in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Mariental.

Maximum UV Index Levels in Mariental for September

The chart shows the monthly maximum UV Index (UVI) for Mariental 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 Mariental typically reaches 11, which falls under the extreme exposure category.

Data source: Mariental 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 Mariental Compares to Other Months

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

This table compares monthly weather conditions in Mariental, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	29°C (84°F)	46 mm (1.8 inches)	45%	extreme
February Weather	27°C (82°F)	60 mm (2.3 inches)	52%	extreme
March Weather	27°C (80°F)	27 mm (1.1 inches)	60%	extreme
April Weather	23°C (74°F)	16 mm (0.6 inches)	68%	extreme
May Weather	20°C (67°F)	1 mm (0.0 inches)	65%	very high
June Weather	16°C (61°F)	0 mm (0.0 inches)	52%	high
July Weather	15°C (59°F)	2 mm (0.1 inches)	42%	high
August Weather	16°C (62°F)	0 mm (0.0 inches)	31%	very high
September Weather	22°C (71°F)	1 mm (0.0 inches)	25%	extreme
October Weather	24°C (76°F)	6 mm (0.2 inches)	25%	extreme
November Weather	27°C (81°F)	2 mm (0.1 inches)	29%	extreme
December Weather	28°C (83°F)	36 mm (1.4 inches)	37%	extreme