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September Weather in Caledonia, United States

Last updated: June 24, 2025

In September, the average temperature in Caledonia, United States hovers around 20°C (68°F), offering a comfortable backdrop for your activities. Expect temperatures to dip to a minimum of 5°C (41°F) and soar to a maximum of 33°C (92°F). With an average precipitation of 76 mm (3.0 in) spread across 9 days, it's wise to carry an umbrella. Additionally, the average humidity lingers around 78%, adding a touch of tropical flavor to the air.

September Temperature in Caledonia

In September in Caledonia, 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 Caledonia an ideal destination for travelers seeking a pleasant mix of warm days and cool nights.

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

The chart illustrates September temperature patterns in Caledonia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caledonia, 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).
JanFebMarAprMayJunJulAugSepOctNovDec293241506271757268574135
Data source: Temperature data for Caledonia 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 Caledonia

In Caledonia in September, the precipitation amount is 76 mm (3.0 in) spread over a period of 9 days.

September Precipitation Trends in Caledonia

The chart displays monthly precipitation patterns in Caledonia, 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 Caledonia, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec78991021201291401208176979484
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Caledonia

In Caledonia 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 Caledonia

This chart illustrates the average monthly humidity levels in Caledonia, 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 Caledonia is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caledonia

In Caledonia 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 Caledonia.

Maximum UV Index Levels in Caledonia for September

The chart shows the monthly maximum UV Index (UVI) for Caledonia 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 Caledonia typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Caledonia 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 Caledonia Compares to Other Months

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

This table compares monthly weather conditions in Caledonia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)78 mm (3.1 inches)88%moderate
February Weather0°C (32°F)99 mm (3.9 inches)87%moderate
March Weather5°C (41°F)102 mm (4.0 inches)87%high
April Weather10°C (50°F)120 mm (4.7 inches)87%very high
May Weather17°C (62°F)129 mm (5.1 inches)81%very high
June Weather22°C (71°F)140 mm (5.5 inches)82%very high
July Weather24°C (75°F)120 mm (4.7 inches)81%very high
August Weather22°C (72°F)81 mm (3.2 inches)78%very high
September Weather20°C (68°F)76 mm (3.0 inches)78%very high
October Weather14°C (57°F)97 mm (3.8 inches)82%high
November Weather5°C (41°F)94 mm (3.7 inches)89%moderate
December Weather2°C (35°F)84 mm (3.3 inches)86%low

Compare Caledonia's Climate with Cities Worldwide