Last updated: August 22, 2025
In Sint-Andries, Belgium, the average temperature in September is a pleasant 16°C (61°F). While you might experience a refreshing minimum of 7°C (45°F), warm days can reach up to 30°C (86°F). Expect about 56 mm (2.2 in) of precipitation spread over 10 days, coupled with an average humidity of 82%, creating a wonderfully humid atmosphere!
In September in Sint-Andries, the average temperature is 16°C (61°F). The maximum can reach 30°C (86°F), while the minimum can be as low as 7°C (45°F). This moderate climate makes it an excellent time for travelers to explore and enjoy outdoor activities.
In Sint-Andries in September, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.
In Sint-Andries in September humidity is 82%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket enveloping you, making travel feel a bit sluggish and requiring frequent breaks to hydrate and cool down.
In Sint-Andries 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 Sint-Andries.
UV Risk Categories
Weather in Sint-Andries varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sint-Andries, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 65 mm (2.5 inches) | 91% | low |
| February Weather | 6°C (43°F) | 61 mm (2.4 inches) | 89% | low |
| March Weather | 7°C (46°F) | 64 mm (2.5 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 39 mm (1.5 inches) | 85% | moderate |
| May Weather | 13°C (56°F) | 54 mm (2.1 inches) | 82% | high |
| June Weather | 17°C (63°F) | 61 mm (2.4 inches) | 82% | very high |
| July Weather | 18°C (66°F) | 60 mm (2.4 inches) | 80% | very high |
| August Weather | 19°C (66°F) | 74 mm (2.9 inches) | 76% | high |
| September Weather | 16°C (61°F) | 56 mm (2.2 inches) | 82% | moderate |
| October Weather | 13°C (56°F) | 89 mm (3.5 inches) | 89% | moderate |
| November Weather | 9°C (48°F) | 60 mm (2.4 inches) | 92% | low |
| December Weather | 7°C (44°F) | 100 mm (3.9 inches) | 92% | low |