Antwerp weather in September
September in Antwerp: nice, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Antwerp · #273 of 897 destinations to visit in September · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Antwerp in September
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Antwerp climate normals — September
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Rainfall | 62 mm / 2.4 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 8.9 h/day | |
| Daylight | 12.6 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Antwerp in September — FAQ
- Is September a good time to visit Antwerp?
- September in Antwerp: nice, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Antwerp on SeasonMap's comfort score (87/100).
- What is the weather like in Antwerp in September?
- In September, Antwerp averages a daily high of 20.7°C and a low of 12.9°C, with about 61.6 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Antwerp in September?
- Antwerp has a mean US Air Quality Index of about 47 in September.