Last updated: August 22, 2025
In September, the average temperature in Saint-Ghislain, Belgium is a pleasant 16°C (60°F). Expect temperatures to range from a cool 3°C (38°F) to a warm 33°C (91°F). During this month, you'll encounter 49 mm (1.9 in) of precipitation spread over 9 days, contributing to an average humidity level of 82%.
In September in Saint-Ghislain, the average temperature is 16°C (60°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 3°C (38°F). This variation in temperature makes it essential for travelers to pack both light and warm clothing to stay comfortable throughout their visit.
In Saint-Ghislain in September, the total precipitation amount is 49 mm (1.9 in) spread over 9 days.
In Saint-Ghislain 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 Saint-Ghislain 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 Saint-Ghislain.
UV Risk Categories
Weather in Saint-Ghislain varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Saint-Ghislain, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 65 mm (2.6 inches) | 91% | low |
| February Weather | 5°C (42°F) | 72 mm (2.8 inches) | 89% | low |
| March Weather | 7°C (46°F) | 73 mm (2.9 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 38 mm (1.5 inches) | 85% | moderate |
| May Weather | 14°C (57°F) | 59 mm (2.3 inches) | 82% | high |
| June Weather | 18°C (65°F) | 57 mm (2.2 inches) | 82% | very high |
| July Weather | 19°C (66°F) | 60 mm (2.4 inches) | 80% | very high |
| August Weather | 19°C (66°F) | 79 mm (3.1 inches) | 76% | high |
| September Weather | 16°C (60°F) | 49 mm (1.9 inches) | 82% | moderate |
| October Weather | 12°C (54°F) | 78 mm (3.1 inches) | 89% | moderate |
| November Weather | 7°C (46°F) | 60 mm (2.4 inches) | 92% | low |
| December Weather | 6°C (42°F) | 100 mm (3.9 inches) | 92% | low |