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September Weather in Croghan, United States

Last updated: June 24, 2025

In September, the average temperature in Croghan, United States hovers around 16°C (61°F), offering a mild climate. However, temperatures can vary significantly, dipping to a chilly -2°C (29°F) at their lowest and soaring to a warm 31°C (88°F) at their peak. Expect an average precipitation of 83 mm (3.3 in) spread over 10 days, with humidity levels resting at a comfortable 78%. Prepare for a blend of refreshing coolness and occasional warmth!

September Temperature in Croghan

In September in Croghan, the average temperature is 16°C (61°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -2°C (29°F). Pack a variety of clothing to accommodate both warm days and chilly nights during your travels.

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

The chart illustrates September temperature patterns in Croghan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Croghan, September typically has an average temperature of 16°C (61°F), with highs reaching up to 31°C (88°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec212431435665706861503527
Data source: Temperature data for Croghan 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 Croghan

In Croghan in September, the total precipitation amount is 83 mm (3.3 in) over a span of 10 days.

September Precipitation Trends in Croghan

The chart displays monthly precipitation patterns in Croghan, 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 Croghan, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec102969512411511516713483169128109
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Croghan

In Croghan in September, humidity is 78%. With an average temperature of 16°C (61°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as it clings to your skin and creates a heavy atmosphere that can drain your energy.

September Average Humidity in Croghan

This chart illustrates the average monthly humidity levels in Croghan, 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 Croghan is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Croghan

In Croghan in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Croghan.

Maximum UV Index Levels in Croghan for September

The chart shows the monthly maximum UV Index (UVI) for Croghan 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 Croghan typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246899997532
Data source: Croghan 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 Croghan Compares to Other Months

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

This table compares monthly weather conditions in Croghan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)102 mm (4.0 inches)90%low
February Weather-4°C (24°F)96 mm (3.8 inches)90%moderate
March Weather-1°C (31°F)95 mm (3.8 inches)87%high
April Weather6°C (44°F)124 mm (4.9 inches)88%very high
May Weather13°C (56°F)115 mm (4.5 inches)82%very high
June Weather18°C (65°F)115 mm (4.5 inches)79%very high
July Weather21°C (70°F)167 mm (6.6 inches)78%very high
August Weather20°C (68°F)134 mm (5.3 inches)76%very high
September Weather16°C (61°F)83 mm (3.3 inches)78%high
October Weather10°C (50°F)169 mm (6.7 inches)84%moderate
November Weather2°C (35°F)128 mm (5.0 inches)89%moderate
December Weather-3°C (27°F)109 mm (4.3 inches)86%low

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