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December Weather in Rosebank, South Africa

Last updated: August 31, 2025

In December, the average temperature in Rosebank, South Africa hovers around 19°C (66°F). Residents can expect temperatures to range from a cool 14°C (58°F) to a warm 28°C (82°F). With an average humidity of 77%, it can feel quite moist outside. Be prepared for a bit of rain too, as the area typically receives 26 mm (1.0 in) of precipitation over 5 days.

December Temperature in Rosebank

In December, in Rosebank, the average temperature hovers around 19°C (66°F), with maximums soaring to 28°C (82°F) and minimums dropping to a cool 14°C (58°F). This pleasant weather makes Rosebank an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates December temperature patterns in Rosebank, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosebank, December typically has an average temperature of 19°C (66°F), with highs reaching up to 28°C (82°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec686866636058575658616366
Data source: Temperature data for Rosebank 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 Rosebank

In Rosebank in December, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.

December Precipitation Trends in Rosebank

The chart displays monthly precipitation patterns in Rosebank, 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 Rosebank, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1410243063103957545413326
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rosebank

In Rosebank in December, humidity is 77%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and sticky, which can be quite uncomfortable for traveling.

December Average Humidity in Rosebank

This chart illustrates the average monthly humidity levels in Rosebank, 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 Rosebank is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%81%80%78%79%80%77%76%77%75%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rosebank

In Rosebank in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Rosebank, you can check here.

Maximum UV Index Levels in Rosebank for December

The chart shows the monthly maximum UV Index (UVI) for Rosebank 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 Rosebank typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311853469111214
Data source: Rosebank 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 Rosebank Compares to Other Months

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

This table compares monthly weather conditions in Rosebank, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)14 mm (0.6 inches)77%extreme
February Weather20°C (68°F)10 mm (0.4 inches)80%extreme
March Weather19°C (66°F)24 mm (1.0 inches)81%extreme
April Weather17°C (63°F)30 mm (1.2 inches)80%very high
May Weather16°C (60°F)63 mm (2.5 inches)78%moderate
June Weather14°C (58°F)103 mm (4.1 inches)79%moderate
July Weather14°C (57°F)95 mm (3.7 inches)80%moderate
August Weather13°C (56°F)75 mm (3.0 inches)77%high
September Weather15°C (59°F)45 mm (1.8 inches)76%very high
October Weather16°C (61°F)41 mm (1.6 inches)77%extreme
November Weather17°C (64°F)33 mm (1.3 inches)75%extreme
December Weather19°C (66°F)26 mm (1.0 inches)77%extreme

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