Last updated: August 23, 2025
The average temperature in Castrop-Rauxel, Germany during September is a comfortable 15°C (59°F). However, temperatures can fluctuate significantly, with minimums dropping to 2°C (35°F) and soaring to maximums of 32°C (89°F). This month also sees an average precipitation amount of 67 mm (2.6 in), typically spread over 11 days, while average humidity hovers around a sticky 81%.
In September in Castrop-Rauxel, the average temperature is 15°C (59°F). Maximums can reach 32°C (89°F) and minimums can drop as low as 2°C (35°F). This makes Castrop-Rauxel a great destination for travelers seeking mild weather with the possibility of warm days and cool evenings.
In Castrop-Rauxel in September, the total precipitation amount is 67 mm (2.6 in) over the course of 11 days.
In Castrop-Rauxel in September humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.
In Castrop-Rauxel 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 Castrop-Rauxel.
UV Risk Categories
Weather in Castrop-Rauxel varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Castrop-Rauxel, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 80 mm (3.2 inches) | 91% | low |
| February Weather | 4°C (40°F) | 85 mm (3.4 inches) | 90% | low |
| March Weather | 7°C (44°F) | 85 mm (3.4 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 39 mm (1.5 inches) | 84% | moderate |
| May Weather | 14°C (57°F) | 70 mm (2.7 inches) | 77% | high |
| June Weather | 19°C (66°F) | 67 mm (2.6 inches) | 74% | very high |
| July Weather | 19°C (66°F) | 98 mm (3.9 inches) | 72% | very high |
| August Weather | 19°C (66°F) | 77 mm (3.0 inches) | 71% | high |
| September Weather | 15°C (59°F) | 67 mm (2.6 inches) | 81% | moderate |
| October Weather | 12°C (53°F) | 97 mm (3.8 inches) | 88% | moderate |
| November Weather | 7°C (44°F) | 59 mm (2.3 inches) | 91% | low |
| December Weather | 5°C (41°F) | 108 mm (4.2 inches) | 92% | low |