Last updated: August 22, 2025
In September, the average temperature in Rupelmonde, Belgium hovers around 16°C (60°F). Expect a pleasant range where minimums can dip to 4°C (40°F) and maximums might soar to 32°C (90°F). Be prepared for some wet days, as 56 mm (2.2 in) of precipitation typically falls over about 10 days. With an average humidity of 82%, it's a season where the air feels comfortably crisp yet slightly damp.
In September in Rupelmonde, the average temperature is 16°C (60°F), with maximums reaching 32°C (90°F) and minimums dropping as low as 4°C (40°F). This range makes it an ideal destination for travelers seeking moderate weather and a variety of outdoor activities.
In Rupelmonde in September, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.
In Rupelmonde in September humidity is 82%. With an average temperature of 16°C (60°F), this humidity feels like walking through a warm, thick blanket that clings to your skin, making every step feel heavier and travel more exhausting.
In Rupelmonde 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 Rupelmonde.
UV Risk Categories
Weather in Rupelmonde varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rupelmonde, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 63 mm (2.5 inches) | 91% | low |
| February Weather | 6°C (42°F) | 66 mm (2.6 inches) | 89% | low |
| March Weather | 7°C (46°F) | 69 mm (2.7 inches) | 87% | moderate |
| April Weather | 10°C (51°F) | 39 mm (1.5 inches) | 85% | moderate |
| May Weather | 14°C (57°F) | 64 mm (2.5 inches) | 82% | high |
| June Weather | 18°C (65°F) | 70 mm (2.8 inches) | 82% | very high |
| July Weather | 19°C (66°F) | 74 mm (2.9 inches) | 80% | very high |
| August Weather | 19°C (66°F) | 75 mm (3.0 inches) | 76% | high |
| September Weather | 16°C (60°F) | 56 mm (2.2 inches) | 82% | moderate |
| October Weather | 13°C (55°F) | 83 mm (3.3 inches) | 89% | moderate |
| November Weather | 8°C (46°F) | 54 mm (2.1 inches) | 92% | low |
| December Weather | 6°C (43°F) | 91 mm (3.6 inches) | 92% | low |