September Weather in Baarn, Netherlands

Last updated: August 27, 2025

In September, the average temperature in Baarn, Netherlands is a comfortable 15°C (59°F). Expect lows of around 2°C (36°F) and highs reaching 31°C (87°F). This month, you'll experience 75 mm (2.9 in) of precipitation spread over 11 days, contributing to an average humidity of 83%. Stay prepared for a mix of warm and cool days!

September Temperature in Baarn

In September in Baarn, the average temperature is 15°C (59°F). Maximum temperatures can reach 31°C (87°F), while minimums may drop as low as 2°C (36°F). It's a great time to explore Baarn, so be prepared for both warm days and cool nights!

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

The chart illustrates September temperature patterns in Baarn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Baarn, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (87°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Baarn

In Baarn in September, the precipitation amount is 75 mm (2.9 in) over the course of 11 days.

September Precipitation Trends in Baarn

The chart displays monthly precipitation patterns in Baarn, 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 Baarn, September typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 11 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 Baarn

In Baarn in September humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.

September Average Humidity in Baarn

This chart illustrates the average monthly humidity levels in Baarn, 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 Baarn is approximately 83%, 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 Baarn

In Baarn 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 Baarn.

Maximum UV Index Levels in Baarn for September

The chart shows the monthly maximum UV Index (UVI) for Baarn 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 Baarn typically reaches 5, which falls under the moderate exposure category.

Data source: Baarn 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 Baarn Compares to Other Months

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

This table compares monthly weather conditions in Baarn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	58 mm (2.3 inches)	88%	low
February Weather	5°C (41°F)	71 mm (2.8 inches)	88%	low
March Weather	7°C (44°F)	72 mm (2.8 inches)	86%	moderate
April Weather	10°C (49°F)	43 mm (1.7 inches)	84%	moderate
May Weather	13°C (56°F)	64 mm (2.5 inches)	80%	high
June Weather	18°C (64°F)	76 mm (3.0 inches)	75%	very high
July Weather	18°C (65°F)	75 mm (3.0 inches)	75%	very high
August Weather	18°C (65°F)	84 mm (3.3 inches)	75%	high
September Weather	15°C (59°F)	75 mm (2.9 inches)	83%	moderate
October Weather	12°C (54°F)	85 mm (3.4 inches)	86%	moderate
November Weather	7°C (46°F)	50 mm (2.0 inches)	87%	low
December Weather	5°C (42°F)	86 mm (3.4 inches)	86%	low