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September Weather in Bultfontein, South Africa

Last updated: August 31, 2025

In September, the average temperature in Bultfontein, South Africa is a pleasant 17°C (63°F). However, be prepared for a wide range, as temperatures can dip as low as -4°C (25°F) or soar up to 33°C (92°F). Rainfall is minimal, with an average precipitation of just 8 mm (0.3 in) over 1 day. The air is moderately humid, boasting an average humidity of 63%.

September Temperature in Bultfontein

In September in Bultfontein, the average temperature is 17°C (63°F), with maximums reaching 33°C (92°F) and minimums dropping as low as -4°C (25°F). Be prepared for a wide range of weather conditions when traveling to Bultfontein during this month.

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

The chart illustrates September temperature patterns in Bultfontein, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bultfontein, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec747269635550495463677173
Data source: Temperature data for Bultfontein generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Bultfontein

In Bultfontein in September, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Bultfontein

The chart displays monthly precipitation patterns in Bultfontein, 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 Bultfontein, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec821146665953158335191
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bultfontein

In Bultfontein in September humidity is 63%. With average temperature 17°C (63°F), this humidity feels like a comfortable embrace, making it ideal for leisurely strolls and sightseeing without feeling overly sticky or uncomfortable for travelers.

September Average Humidity in Bultfontein

This chart illustrates the average monthly humidity levels in Bultfontein, 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 Bultfontein is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%74%79%83%84%80%69%60%63%61%67%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bultfontein

In Bultfontein 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 Bultfontein.

Maximum UV Index Levels in Bultfontein for September

The chart shows the monthly maximum UV Index (UVI) for Bultfontein 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 Bultfontein typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151310756811121416
Data source: Bultfontein 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 Bultfontein Compares to Other Months

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

This table compares monthly weather conditions in Bultfontein, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)82 mm (3.2 inches)75%extreme
February Weather22°C (72°F)114 mm (4.5 inches)74%extreme
March Weather21°C (69°F)66 mm (2.6 inches)79%extreme
April Weather17°C (63°F)65 mm (2.6 inches)83%very high
May Weather13°C (56°F)9 mm (0.3 inches)84%high
June Weather10°C (50°F)5 mm (0.2 inches)79%moderate
July Weather9°C (49°F)3 mm (0.1 inches)69%high
August Weather12°C (54°F)15 mm (0.6 inches)60%very high
September Weather17°C (63°F)8 mm (0.3 inches)63%extreme
October Weather20°C (68°F)33 mm (1.3 inches)61%extreme
November Weather22°C (71°F)51 mm (2.0 inches)67%extreme
December Weather23°C (74°F)91 mm (3.6 inches)75%extreme

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