Last updated: August 23, 2025
In September, the average temperature in Blankenheim, Germany hovers around 15°C (59°F), creating a pleasantly mild climate. Temperatures can vary significantly, with minimums as low as 2°C (36°F) and maximums reaching 32°C (90°F). Expect 49 mm (1.9 in) of precipitation spread over approximately 8 days, contributing to an average humidity of 83%. This combination makes for a uniquely vibrant atmosphere throughout the month.
In September in Blankenheim, the average temperature is 15°C (59°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 2°C (36°F). Be prepared for a wide range of temperatures when traveling during this month.
In Blankenheim in September, the precipitation amount is 49 mm (1.9 in) spread over 8 days.
In Blankenheim in September humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.
In Blankenheim in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Blankenheim.
UV Risk Categories
Weather in Blankenheim varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Blankenheim, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 46 mm (1.8 inches) | 91% | low |
| February Weather | 3°C (37°F) | 46 mm (1.8 inches) | 90% | low |
| March Weather | 5°C (41°F) | 50 mm (2.0 inches) | 88% | moderate |
| April Weather | 9°C (48°F) | 34 mm (1.4 inches) | 83% | moderate |
| May Weather | 13°C (56°F) | 65 mm (2.5 inches) | 75% | high |
| June Weather | 19°C (66°F) | 59 mm (2.3 inches) | 79% | very high |
| July Weather | 19°C (67°F) | 63 mm (2.5 inches) | 79% | very high |
| August Weather | 19°C (67°F) | 68 mm (2.7 inches) | 79% | high |
| September Weather | 15°C (59°F) | 49 mm (1.9 inches) | 83% | moderate |
| October Weather | 11°C (52°F) | 52 mm (2.1 inches) | 87% | moderate |
| November Weather | 6°C (42°F) | 38 mm (1.5 inches) | 90% | low |
| December Weather | 3°C (38°F) | 53 mm (2.1 inches) | 92% | low |