September Weather in Bremen, United States

Last updated: June 24, 2025

In September, the average temperature in Bremen, United States hovers around 24°C (75°F), offering a pleasant climate. Expect a minimum drop to 10°C (51°F) and a maximum rise to 35°C (95°F), creating a notable range in daily conditions. With precipitation totaling 102 mm (4.0 in) across 9 days, don’t forget your umbrella! The ambiance is further characterized by an average humidity of 73%, ensuring a warm and moist atmosphere.

September Temperature in Bremen

In September in Bremen, the average temperature is 24°C (75°F). Maximums can reach 35°C (95°F), while minimums can drop as low as 10°C (51°F). This warm climate makes Bremen a perfect destination for outdoor activities and exploration during this time of year.

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

The chart illustrates September temperature patterns in Bremen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bremen, September typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (95°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec455156627176797874665248
Data source: Temperature data for Bremen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Bremen

In Bremen in September, the total precipitation amount is 102 mm (4.0 in) over a span of 9 days.

September Precipitation Trends in Bremen

The chart displays monthly precipitation patterns in Bremen, 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 Bremen, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec11116012913910412912915410212989141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bremen

In Bremen in September humidity is 73%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making it somewhat uncomfortable for traveling if you're not acclimated, as sweat clings to your skin and limits your energy for exploration.

September Average Humidity in Bremen

This chart illustrates the average monthly humidity levels in Bremen, 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 Bremen is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bremen

In Bremen in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Bremen.

Maximum UV Index Levels in Bremen for September

The chart shows the monthly maximum UV Index (UVI) for Bremen 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 Bremen typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Bremen 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 Bremen Compares to Other Months

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

This table compares monthly weather conditions in Bremen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)110 mm (4.4 inches)85%moderate
February Weather11°C (51°F)160 mm (6.3 inches)84%high
March Weather14°C (57°F)129 mm (5.1 inches)82%very high
April Weather17°C (62°F)139 mm (5.5 inches)82%very high
May Weather22°C (71°F)104 mm (4.1 inches)81%extreme
June Weather24°C (76°F)129 mm (5.1 inches)77%extreme
July Weather26°C (79°F)129 mm (5.1 inches)77%extreme
August Weather25°C (78°F)154 mm (6.1 inches)72%very high
September Weather24°C (75°F)102 mm (4.0 inches)73%very high
October Weather19°C (66°F)129 mm (5.1 inches)73%very high
November Weather11°C (52°F)89 mm (3.5 inches)85%high
December Weather9°C (48°F)140 mm (5.5 inches)88%moderate

Compare Bremen's Climate with Cities Worldwide