Climate almanac
Heidelberg
Gauteng, South Africa · -26.50°, 28.36°
What is the weather like in Heidelberg in December?
In December, Heidelberg is typically 79°F (26°C) during the day and 60°F (15°C) at night. The month brings about 5.7 in (144 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low60°F (15°C)
- Precipitation5.7 in (144 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)