September Weather in Antwerp, United States

Last updated: June 24, 2025

In Antwerp, United States, the average temperature in September hovers around 20°C (68°F), with minimums dipping to 3°C (38°F) and maximums soaring up to 34°C (93°F). This month also sees an average precipitation of 61 mm (2.4 in) spread across 8 days, contributing to an average humidity level of 78%. Enjoy the blend of warmth and moisture that makes this time of year unique!

September Temperature in Antwerp

In September in Antwerp, the average temperature is 20°C (68°F). Maximums can reach 34°C (93°F), and minimums can be as low as 3°C (38°F). Be prepared for a range of weather conditions during your travels!

September Weather in Antwerp: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Antwerp, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Antwerp, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Antwerp generated using information from the Copernicus Climate Change Service.

September Precipitation in Antwerp

In Antwerp in September, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

September Precipitation Trends in Antwerp

The chart displays monthly precipitation patterns in Antwerp, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Antwerp, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Antwerp

In Antwerp in September humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

September Average Humidity in Antwerp

This chart illustrates the average monthly humidity levels in Antwerp, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Antwerp is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Antwerp

In Antwerp in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Antwerp.

Maximum UV Index Levels in Antwerp for September

The chart shows the monthly maximum UV Index (UVI) for Antwerp in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Antwerp typically reaches 8, which falls under the very high exposure category.

Data source: Antwerp September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Antwerp Compares to Other Months

Weather in Antwerp varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Antwerp, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Antwerp, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	72 mm (2.8 inches)	88%	moderate
February Weather	-1°C (30°F)	75 mm (2.9 inches)	87%	moderate
March Weather	4°C (40°F)	98 mm (3.9 inches)	87%	high
April Weather	10°C (50°F)	94 mm (3.7 inches)	87%	very high
May Weather	17°C (62°F)	131 mm (5.1 inches)	81%	very high
June Weather	22°C (72°F)	125 mm (4.9 inches)	82%	very high
July Weather	24°C (76°F)	104 mm (4.1 inches)	81%	very high
August Weather	23°C (73°F)	97 mm (3.8 inches)	78%	very high
September Weather	20°C (68°F)	61 mm (2.4 inches)	78%	very high
October Weather	13°C (56°F)	97 mm (3.8 inches)	82%	high
November Weather	5°C (41°F)	81 mm (3.2 inches)	89%	moderate
December Weather	1°C (35°F)	58 mm (2.3 inches)	86%	low