nomadseason

September Weather in Bangor, France

Last updated: August 23, 2025

In September, the average temperature in Bangor, France is a comfortable 17°C (64°F). Expect a minimum of 13°C (55°F) and a pleasant maximum of 24°C (75°F). You'll experience about 38 mm (1.5 in) of precipitation spread over 8 days, contributing to an average humidity of 79%. Perfect weather for your adventures!

September Temperature in Bangor

In September, in Bangor, the average temperature is 17°C (64°F). Maximum temperatures can reach 24°C (75°F), while the minimum can drop to as low as 13°C (55°F). This mild climate makes Bangor an ideal destination for travelers seeking comfortable weather during their visit.

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

The chart illustrates September temperature patterns in Bangor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bangor, September typically has an average temperature of 17°C (64°F), with highs reaching up to 24°C (75°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec494950535762656563595452
Data source: Temperature data for Bangor 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 Bangor

In Bangor in September, the total precipitation amount is 38 mm (1.5 in), spread over 8 days.

September Precipitation Trends in Bangor

The chart displays monthly precipitation patterns in Bangor, 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 Bangor, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec6278653849554048389394130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Bangor

In Bangor in September humidity is 79%. With an average temperature of 17°C (64°F), this humidity feels like a warm blanket wrapped around you, making outdoor activities feel a bit muggy and requiring frequent hydration as you explore the sights.

September Average Humidity in Bangor

This chart illustrates the average monthly humidity levels in Bangor, 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 Bangor is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%81%82%82%80%77%78%79%82%81%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bangor

In Bangor in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bangor, you can refer to this Hourly UV Index in Bangor.

Maximum UV Index Levels in Bangor for September

The chart shows the monthly maximum UV Index (UVI) for Bangor 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 Bangor typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789986522
Data source: Bangor 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 Bangor Compares to Other Months

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

This table compares monthly weather conditions in Bangor, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)62 mm (2.4 inches)82%low
February Weather10°C (50°F)78 mm (3.1 inches)83%moderate
March Weather10°C (50°F)65 mm (2.6 inches)81%moderate
April Weather12°C (53°F)38 mm (1.5 inches)82%high
May Weather14°C (57°F)49 mm (1.9 inches)82%very high
June Weather17°C (62°F)55 mm (2.2 inches)80%very high
July Weather19°C (66°F)40 mm (1.6 inches)77%very high
August Weather18°C (65°F)48 mm (1.9 inches)78%very high
September Weather17°C (64°F)38 mm (1.5 inches)79%high
October Weather15°C (60°F)93 mm (3.7 inches)82%moderate
November Weather12°C (55°F)94 mm (3.7 inches)81%low
December Weather11°C (52°F)130 mm (5.1 inches)82%low

Compare Bangor's Climate with Cities Worldwide