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December Weather in Bethlehem, South Africa

Last updated: August 31, 2025

In December, the average temperature in Bethlehem, South Africa is a pleasant 19°C (66°F). However, be prepared for a range, as temperatures can dip to a minimum of 8°C (46°F) and soar to a maximum of 35°C (96°F). With an average precipitation of 154 mm (6.1 in) spread over 18 days, you might experience a few rainy moments. Additionally, the region boasts an average humidity of 86%, making for a lush and vibrant atmosphere.

December Temperature in Bethlehem

In December in Bethlehem, the average temperature is 19°C (66°F), with maximums reaching up to 35°C (96°F) and minimums dipping as low as 8°C (46°F). This range makes it a perfect time to explore the outdoors, so be sure to pack accordingly for a comfortable visit.

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

The chart illustrates December temperature patterns in Bethlehem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethlehem, December typically has an average temperature of 19°C (66°F), with highs reaching up to 35°C (96°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec676664585247465259626566
Data source: Temperature data for Bethlehem 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 Bethlehem

In Bethlehem in December, the total precipitation amount is 154 mm (6.1 in) over the course of 18 days.

December Precipitation Trends in Bethlehem

The chart displays monthly precipitation patterns in Bethlehem, 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 Bethlehem, December typically receives around 154 mm (6.1 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec11413587741662211350100154
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bethlehem

In Bethlehem in December, humidity is 86%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel slightly uncomfortable as the air feels heavy and sticking to your skin.

December Average Humidity in Bethlehem

This chart illustrates the average monthly humidity levels in Bethlehem, 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 Bethlehem is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%88%83%74%66%75%80%86%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bethlehem

In Bethlehem in December, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Bethlehem, you can check Hourly UV Index in Bethlehem.

Maximum UV Index Levels in Bethlehem for December

The chart shows the monthly maximum UV Index (UVI) for Bethlehem 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 Bethlehem typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161311756811121417
Data source: Bethlehem 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 Bethlehem Compares to Other Months

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

This table compares monthly weather conditions in Bethlehem, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (67°F)114 mm (4.5 inches)85%extreme
February Weather19°C (67°F)135 mm (5.3 inches)85%extreme
March Weather18°C (64°F)86 mm (3.4 inches)86%extreme
April Weather15°C (59°F)74 mm (2.9 inches)87%extreme
May Weather11°C (53°F)16 mm (0.6 inches)88%high
June Weather8°C (47°F)6 mm (0.2 inches)83%moderate
July Weather8°C (47°F)2 mm (0.1 inches)74%high
August Weather11°C (52°F)21 mm (0.8 inches)66%very high
September Weather15°C (59°F)13 mm (0.5 inches)75%extreme
October Weather17°C (63°F)50 mm (2.0 inches)80%extreme
November Weather18°C (65°F)100 mm (3.9 inches)86%extreme
December Weather19°C (66°F)154 mm (6.1 inches)86%extreme

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