Last updated: August 23, 2025
In September, the average temperature in Clausthal-Zellerfeld, Germany is a comfortable 14°C (57°F). Expect minimums dipping to 1°C (33°F) and maximums soaring to 30°C (87°F). During this month, you can anticipate about 58 mm (2.3 in) of precipitation spread over 11 days, along with an average humidity of 83%.
In September in Clausthal-Zellerfeld, the average temperature is 14°C (57°F). Maximums can reach 30°C (87°F), while minimums can drop to as low as 1°C (33°F). This variation makes it essential for travelers to pack layers to enjoy both warm days and cooler evenings.
In Clausthal-Zellerfeld in September, the precipitation amount is 58 mm (2.3 in) over the course of 11 days.
In Clausthal-Zellerfeld in September, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.
In Clausthal-Zellerfeld in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Clausthal-Zellerfeld, you can refer to this Hourly UV Index in Clausthal-Zellerfeld.
UV Risk Categories
Weather in Clausthal-Zellerfeld varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Clausthal-Zellerfeld, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 73 mm (2.9 inches) | 91% | low |
| February Weather | 2°C (35°F) | 72 mm (2.8 inches) | 90% | low |
| March Weather | 4°C (40°F) | 73 mm (2.9 inches) | 88% | moderate |
| April Weather | 8°C (47°F) | 44 mm (1.7 inches) | 83% | moderate |
| May Weather | 12°C (54°F) | 71 mm (2.8 inches) | 75% | high |
| June Weather | 17°C (64°F) | 81 mm (3.2 inches) | 79% | very high |
| July Weather | 18°C (64°F) | 86 mm (3.4 inches) | 79% | very high |
| August Weather | 18°C (65°F) | 74 mm (2.9 inches) | 79% | high |
| September Weather | 14°C (57°F) | 58 mm (2.3 inches) | 83% | high |
| October Weather | 10°C (51°F) | 78 mm (3.1 inches) | 87% | moderate |
| November Weather | 5°C (42°F) | 49 mm (1.9 inches) | 90% | low |
| December Weather | 3°C (37°F) | 80 mm (3.1 inches) | 92% | low |