Last updated: March 2, 2024
The weather in Heidelberg, South Africa, during January is characterized by an average temperature of 21°C (69°F). Highs can soar to 30°C (87°F), while lows may dip to 11°C (53°F). Typically, the humidity level in Heidelberg throughout January hovers around 79%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Heidelberg averages 121 mm (4.8 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 13 hours 34 minutes of daylight, with the sun shining for approximately 9 hours 56 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Heidelberg reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 2 | 4 | 8 | 11 | 14 | 15 | 14 | 12 | 8 | 5 | 2 | 1 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||