nomadseason

September Weather in Berlin, United States

Last updated: June 24, 2025

In September, the average temperature in Berlin, United States reaches a warm 27°C (80°F). Expect minimums of around 14°C (57°F) and soaring maximums of 38°C (101°F). With an average humidity of 83%, the air can feel quite muggy. Be prepared for some rain, too, as 112 mm (4.4 in) of precipitation is expected over 12 days.

September Temperature in Berlin

In September in Berlin, the average temperature is 27°C (80°F), with maximums reaching 38°C (101°F) and minimums dropping as low as 14°C (57°F). This variety in temperatures makes it a great time for travelers to enjoy both warm days and cooler evenings.

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 27°C (80°F), with highs reaching up to 38°C (101°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec535963697680828280736055
Data source: Temperature data for Berlin generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Berlin

In Berlin in September, the total precipitation amount is 112 mm (4.4 in), falling over the course of 12 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 112 mm (4.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec70935780671331411191136949125
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Berlin

In Berlin in September, humidity is 83%. With an average temperature of 27°C (80°F), this humidity feels like a warm, steamy embrace, making traveling a bit uncomfortable as the air clings to your skin and renders even the slightest exertion more exhausting.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111111110864
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.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)70 mm (2.8 inches)85%moderate
February Weather15°C (59°F)93 mm (3.7 inches)82%very high
March Weather17°C (63°F)57 mm (2.2 inches)80%very high
April Weather20°C (69°F)80 mm (3.2 inches)76%extreme
May Weather25°C (76°F)67 mm (2.7 inches)73%extreme
June Weather27°C (81°F)133 mm (5.2 inches)74%extreme
July Weather28°C (82°F)141 mm (5.5 inches)80%extreme
August Weather28°C (82°F)119 mm (4.7 inches)79%extreme
September Weather27°C (80°F)112 mm (4.4 inches)83%very high
October Weather23°C (73°F)69 mm (2.7 inches)77%very high
November Weather15°C (60°F)49 mm (1.9 inches)84%high
December Weather13°C (56°F)125 mm (4.9 inches)88%moderate

Compare Berlin's Climate with Cities Worldwide