August Weather in Koster, South Africa

Last updated: August 31, 2025

In August, the average temperature in Koster, South Africa hovers around 16°C (61°F). Expect a minimum chill of 2°C (35°F) and the possibility of sunny highs reaching 29°C (85°F). With an average humidity level of 45%, the air is generally comfortable, and you can anticipate minimal precipitation—just 1 mm (0.1 in) across 0 days. Enjoy the mild weather!

August Temperature in Koster

In August in Koster, the average temperature is 16°C (61°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as 2°C (35°F). This makes it an ideal time for travelers seeking a pleasant climate for outdoor activities.

August Weather in Koster: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Koster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koster, August typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (85°F) and lows dropping to around 2°C (35°F).

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

August Precipitation in Koster

In Koster in August, the precipitation amount is 1 mm (0.1 in) during 0 days, indicating a very dry period.

August Precipitation Trends in Koster

The chart displays monthly precipitation patterns in Koster, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Koster, August typically receives around 1 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Koster

In Koster in August, humidity is 45%. With an average temperature of 16°C (61°F), this humidity feels like a refreshing breeze, making it comfortable for traveling as it adds a pleasant and mild touch to your outdoor adventures.

August Average Humidity in Koster

This chart illustrates the average monthly humidity levels in Koster, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Koster is approximately 45%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Koster

In Koster in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Koster.

Maximum UV Index Levels in Koster for August

The chart shows the monthly maximum UV Index (UVI) for Koster in August, 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 August, the maximum UV index in Koster typically reaches 9, which falls under the very high exposure category.

Data source: Koster August 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 August Weather in Koster Compares to Other Months

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

This table compares monthly weather conditions in Koster, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	106 mm (4.2 inches)	66%	extreme
February Weather	22°C (72°F)	128 mm (5.0 inches)	66%	extreme
March Weather	21°C (70°F)	53 mm (2.1 inches)	67%	extreme
April Weather	18°C (65°F)	43 mm (1.7 inches)	61%	extreme
May Weather	15°C (59°F)	9 mm (0.4 inches)	56%	high
June Weather	12°C (55°F)	5 mm (0.2 inches)	56%	high
July Weather	12°C (54°F)	2 mm (0.1 inches)	55%	high
August Weather	16°C (61°F)	1 mm (0.1 inches)	45%	very high
September Weather	20°C (68°F)	5 mm (0.2 inches)	49%	extreme
October Weather	21°C (71°F)	47 mm (1.9 inches)	47%	extreme
November Weather	23°C (73°F)	67 mm (2.7 inches)	53%	extreme
December Weather	23°C (73°F)	120 mm (4.7 inches)	64%	extreme