September Weather in Berlin, United States

Last updated: June 24, 2025

In September, the average temperature in Berlin, United States hovers around 23°C (74°F), with a pleasant range from 10°C (51°F) to a warm 34°C (94°F). Expect some rain, as precipitation amounts to 95 mm (3.8 in) over 10 days, and prepare for a somewhat humid atmosphere with an average humidity level of 75%.

September Temperature in Berlin

In September in Berlin, the average temperature is 23°C (74°F). Maximum temperatures can reach up to 34°C (94°F), while the minimum can drop as low as 10°C (51°F). This makes Berlin an ideal destination for travelers seeking a mix of warm days and cooler nights.

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

The chart illustrates September temperature patterns in Berlin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Berlin, September typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (94°F) and lows dropping to around 10°C (51°F).

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

September Precipitation in Berlin

In Berlin in September, the precipitation amount is 95 mm (3.8 in) over the course of 10 days.

September Precipitation Trends in Berlin

The chart displays monthly precipitation patterns in Berlin, 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 Berlin, September typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Berlin

In Berlin in September, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

September Average Humidity in Berlin

This chart illustrates the average monthly humidity levels in Berlin, 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 Berlin is approximately 75%, 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 Berlin

In Berlin 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 Berlin.

Maximum UV Index Levels in Berlin for September

The chart shows the monthly maximum UV Index (UVI) for Berlin 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 Berlin typically reaches 8, which falls under the very high exposure category.

Data source: Berlin 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 Berlin Compares to Other Months

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

This table compares monthly weather conditions in Berlin, 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)	75 mm (2.9 inches)	84%	moderate
February Weather	6°C (44°F)	97 mm (3.8 inches)	83%	moderate
March Weather	8°C (47°F)	91 mm (3.6 inches)	83%	high
April Weather	14°C (57°F)	87 mm (3.4 inches)	81%	very high
May Weather	19°C (66°F)	103 mm (4.1 inches)	78%	very high
June Weather	24°C (75°F)	93 mm (3.7 inches)	79%	very high
July Weather	27°C (80°F)	133 mm (5.2 inches)	74%	very high
August Weather	26°C (79°F)	125 mm (4.9 inches)	72%	very high
September Weather	23°C (74°F)	95 mm (3.8 inches)	75%	very high
October Weather	18°C (65°F)	126 mm (5.0 inches)	81%	high
November Weather	11°C (51°F)	85 mm (3.4 inches)	85%	moderate
December Weather	7°C (45°F)	103 mm (4.0 inches)	84%	moderate