December Weather in Bultfontein, South Africa

Last updated: August 31, 2025

In Bultfontein, South Africa, the average temperature in December is a pleasant 23°C (74°F), making it an inviting time to visit. Expect minimum temperatures to dip to 10°C (50°F) and maximums to reach a sizzling 38°C (101°F). During this month, precipitation averages 91 mm (3.6 in) spread over 12 days, contributing to an average humidity of around 75%. Whether you’re exploring the outdoors or relaxing indoors, the climate offers a mix of warmth and lushness.

December Temperature in Bultfontein

In December in Bultfontein, the average temperature is 23°C (74°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 10°C (50°F). This makes Bultfontein a great destination for travelers seeking warm weather, but it's advisable to pack for both the heat and cooler evenings.

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

The chart illustrates December 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, December typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (101°F) and lows dropping to around 10°C (50°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.

December Precipitation in Bultfontein

In Bultfontein in December, the precipitation amount is 91 mm (3.6 in) over a period of 12 days.

December Precipitation Trends in Bultfontein

The chart displays monthly precipitation patterns in Bultfontein, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Bultfontein, December typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec821146665953158335191
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bultfontein

In Bultfontein in December, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

December Average Humidity in Bultfontein

This chart illustrates the average monthly humidity levels in Bultfontein, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Bultfontein is approximately 75%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Bultfontein

In Bultfontein in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Bultfontein.

Maximum UV Index Levels in Bultfontein for December

The chart shows the monthly maximum UV Index (UVI) for Bultfontein in December, 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 December, the maximum UV index in Bultfontein typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151310756811121416
Data source: Bultfontein December 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 December 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 December’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 December’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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