Last updated: August 23, 2025
In Alsbach-Hahnlein, Germany, the average temperature in September hovers around 16°C (62°F), offering a mild climate. Temperatures can range from a cool 4°C (39°F) to a warm 33°C (93°F). Expect about 43 mm (1.7 in) of precipitation over approximately 6 days, contributing to an average humidity of 85%.
In September in Alsbach-Hahnlein, the average temperature is 16°C (62°F). The maximum can reach 33°C (93°F), and the minimum can be as low as 4°C (39°F). This varied climate makes it a great time for travelers to experience both warm and cooler weather, so pack accordingly!
In Alsbach-Hahnlein in September, the precipitation amount is 43 mm (1.7 in) over a period of 6 days.
In Alsbach-Hahnlein in September humidity is 85%. With an average temperature of 16°C (62°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel feel sluggish and sticky, and urging you to seek shade and hydration at every stop.
In Alsbach-Hahnlein 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 Alsbach-Hahnlein, you can refer to this Hourly UV Index in Alsbach-Hahnlein.
UV Risk Categories
Weather in Alsbach-Hahnlein varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Alsbach-Hahnlein, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 57 mm (2.2 inches) | 91% | low |
| February Weather | 4°C (40°F) | 53 mm (2.1 inches) | 89% | moderate |
| March Weather | 7°C (45°F) | 64 mm (2.5 inches) | 87% | moderate |
| April Weather | 11°C (51°F) | 31 mm (1.2 inches) | 83% | high |
| May Weather | 14°C (58°F) | 70 mm (2.8 inches) | 79% | very high |
| June Weather | 20°C (68°F) | 75 mm (3.0 inches) | 82% | very high |
| July Weather | 21°C (70°F) | 55 mm (2.2 inches) | 83% | very high |
| August Weather | 21°C (70°F) | 53 mm (2.1 inches) | 84% | high |
| September Weather | 16°C (62°F) | 43 mm (1.7 inches) | 85% | high |
| October Weather | 12°C (53°F) | 56 mm (2.2 inches) | 88% | moderate |
| November Weather | 6°C (44°F) | 48 mm (1.9 inches) | 89% | low |
| December Weather | 4°C (40°F) | 96 mm (3.8 inches) | 91% | low |