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September Weather in Galien, United States

Last updated: June 24, 2025

In September, the average temperature in Galien, United States hovers around 20°C (68°F). You'll experience a comfortable range, with minimums dipping to 5°C (41°F) and maximums soaring up to 33°C (92°F). Expect 77 mm (3.0 in) of precipitation over about 9 days, contributing to a moderately high humidity level of 78%.

September Temperature in Galien

In September in Galien, the average temperature is 20°C (68°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 5°C (41°F). This climate makes Galien an ideal destination for travelers seeking a pleasant mix of warm days and cool nights.

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

The chart illustrates September temperature patterns in Galien, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Galien, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec282939476071757367554134
Data source: Temperature data for Galien 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 Galien

In Galien in September, the precipitation amount is 77 mm (3.0 in) over the course of 9 days.

September Precipitation Trends in Galien

The chart displays monthly precipitation patterns in Galien, 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 Galien, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec737495107167140113107771407464
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Galien

In Galien in September humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

September Average Humidity in Galien

This chart illustrates the average monthly humidity levels in Galien, 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 Galien is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Galien

In Galien 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 Galien.

Maximum UV Index Levels in Galien for September

The chart shows the monthly maximum UV Index (UVI) for Galien 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 Galien typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098643
Data source: Galien 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 Galien Compares to Other Months

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

This table compares monthly weather conditions in Galien, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)73 mm (2.9 inches)85%moderate
February Weather-2°C (29°F)74 mm (2.9 inches)85%moderate
March Weather4°C (39°F)95 mm (3.8 inches)86%high
April Weather9°C (48°F)107 mm (4.2 inches)87%very high
May Weather16°C (60°F)167 mm (6.6 inches)81%very high
June Weather22°C (71°F)140 mm (5.5 inches)82%very high
July Weather24°C (75°F)113 mm (4.4 inches)81%very high
August Weather23°C (73°F)107 mm (4.2 inches)79%very high
September Weather20°C (68°F)77 mm (3.0 inches)78%very high
October Weather13°C (55°F)139 mm (5.5 inches)81%high
November Weather5°C (41°F)74 mm (2.9 inches)89%moderate
December Weather1°C (35°F)64 mm (2.5 inches)86%moderate

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