August Weather in Heidelberg

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%.

9°C (49°F)

Minimum temperature

20°C (69°F)

Average temperature

32°C (90°F)

Maximum temperature

84%

Humidity

Precipitation and Sunshine hours

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.

60 mm (2.4 inches)

Precipitation

12 rainy days

Rainy days

12 hours 25 minutes

Sunshine hours

30%

Chance of sun

UV Index

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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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

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