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September Weather in Hamburg, United States

Last updated: June 24, 2025

In September, the average temperature in Hamburg, United States hovers around 26°C (78°F). Expect a wide range, with minimums dropping to 11°C (52°F) and soaring to a maximum of 38°C (101°F). During this month, anticipate about 77 mm (3.0 in) of precipitation spread over 8 days, coupled with an average humidity of 73%. Whether you're seeking warmth or a cool retreat, Hamburg has something for everyone!

September Temperature in Hamburg

In September in Hamburg, the average temperature is 26°C (78°F). Maximum can reach 38°C (101°F) and minimum can be as low as 11°C (52°F). Travelers should prepare for a warm climate with potential for cool evenings, making it an ideal time for both outdoor adventures and comfortable evening strolls.

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

The chart illustrates September temperature patterns in Hamburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamburg, September typically has an average temperature of 26°C (78°F), with highs reaching up to 38°C (101°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec465059647380828178675451
Data source: Temperature data for Hamburg 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 Hamburg

In Hamburg in September, the precipitation amount is 77 mm (3.0 in) distributed over 8 days.

September Precipitation Trends in Hamburg

The chart displays monthly precipitation patterns in Hamburg, 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 Hamburg, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1151951721701441351021007714679130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hamburg

In Hamburg in September, humidity is 73%. With an average temperature of 26°C (78°F), this humidity feels like a warm embrace, making traveling a bit sticky but also inviting, as the air wraps around you, intensifying the heat and creating a tropical atmosphere.

September Average Humidity in Hamburg

This chart illustrates the average monthly humidity levels in Hamburg, 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 Hamburg is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%84%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hamburg

In Hamburg 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 Hamburg.

Maximum UV Index Levels in Hamburg for September

The chart shows the monthly maximum UV Index (UVI) for Hamburg 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 Hamburg typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47811111212119864
Data source: Hamburg 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 Hamburg Compares to Other Months

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

This table compares monthly weather conditions in Hamburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)115 mm (4.5 inches)84%moderate
February Weather10°C (50°F)195 mm (7.7 inches)83%high
March Weather15°C (60°F)172 mm (6.8 inches)80%very high
April Weather18°C (64°F)170 mm (6.7 inches)82%extreme
May Weather23°C (74°F)144 mm (5.7 inches)83%extreme
June Weather26°C (80°F)135 mm (5.3 inches)80%extreme
July Weather28°C (83°F)102 mm (4.0 inches)80%extreme
August Weather27°C (82°F)100 mm (3.9 inches)75%extreme
September Weather26°C (78°F)77 mm (3.0 inches)73%very high
October Weather19°C (67°F)146 mm (5.8 inches)76%very high
November Weather12°C (54°F)79 mm (3.1 inches)84%high
December Weather10°C (51°F)130 mm (5.1 inches)88%moderate

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