Last updated: March 2, 2024
The weather in Heidelberg, Germany, during August is characterized by an average temperature of 20°C (69°F). Highs can soar to 32°C (90°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Heidelberg throughout August hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Heidelberg averages 60 mm (2.4 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 14 hours 19 minutes of daylight, with the sun shining for approximately 12 hours 25 minutes each day. Additionally, there is a 30% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In August, the UV Index in Heidelberg reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 | 1 | 1 | 2 | 4 | 5 | 7 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||