September Weather in Calvinia, South Africa

Last updated: August 31, 2025

In Calvinia, South Africa, the average temperature in September hovers around 14°C (58°F), with extremes ranging from a chilly 0°C (32°F) to a toasty 34°C (94°F). During this month, expect 8 mm (0.3 in) of precipitation spread over just 2 days, and enjoy an average humidity of 61%. Ideal for exploring or relaxing, September offers a pleasant climate for all!

September Temperature in Calvinia

In September in Calvinia, the average temperature is 14°C (58°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 0°C (32°F). Be prepared for a wide range of weather conditions while traveling.

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

The chart illustrates September temperature patterns in Calvinia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Calvinia, September typically has an average temperature of 14°C (58°F), with highs reaching up to 34°C (94°F) and lows dropping to around 0°C (32°F).

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

September Precipitation in Calvinia

In Calvinia in September, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

September Precipitation Trends in Calvinia

The chart displays monthly precipitation patterns in Calvinia, 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 Calvinia, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Calvinia

In Calvinia in September humidity is 61%. With an average temperature of 14°C (58°F), this humidity feels like a refreshing embrace, making for comfortable travel conditions that invite exploration while ensuring you stay hydrated and refreshed.

September Average Humidity in Calvinia

This chart illustrates the average monthly humidity levels in Calvinia, 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 Calvinia is approximately 61%, 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 Calvinia

In Calvinia 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 Calvinia.

Maximum UV Index Levels in Calvinia for September

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

Data source: Calvinia 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 Calvinia Compares to Other Months

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

This table compares monthly weather conditions in Calvinia, 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)	10 mm (0.4 inches)	46%	extreme
February Weather	24°C (75°F)	8 mm (0.3 inches)	47%	extreme
March Weather	21°C (71°F)	11 mm (0.5 inches)	59%	extreme
April Weather	18°C (65°F)	12 mm (0.5 inches)	64%	very high
May Weather	15°C (59°F)	12 mm (0.5 inches)	74%	high
June Weather	11°C (52°F)	23 mm (0.9 inches)	79%	moderate
July Weather	10°C (51°F)	23 mm (0.9 inches)	75%	moderate
August Weather	10°C (51°F)	15 mm (0.6 inches)	69%	high
September Weather	14°C (58°F)	8 mm (0.3 inches)	61%	very high
October Weather	18°C (64°F)	15 mm (0.6 inches)	52%	extreme
November Weather	19°C (67°F)	7 mm (0.3 inches)	43%	extreme
December Weather	21°C (70°F)	14 mm (0.5 inches)	43%	extreme