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September Weather in Amboy, United States

Last updated: June 24, 2025

In September, the average temperature in Amboy, United States is a pleasant 15°C (60°F). However, temperatures can vary widely, with a minimum of 4°C (39°F) and a maximum soaring to 34°C (94°F). Be prepared for some rain, as the area experiences about 132 mm (5.2 in) of precipitation over 9 days, contributing to a comfortable average humidity of 71%.

September Temperature in Amboy

In September in Amboy, the average temperature is 15°C (60°F). Temperatures can peak at 34°C (94°F) and drop to as low as 4°C (39°F). This variation makes it essential to pack layers and be prepared for both warm and cool conditions while traveling.

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

The chart illustrates September temperature patterns in Amboy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Amboy, September typically has an average temperature of 15°C (60°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec383641475459646660494338
Data source: Temperature data for Amboy 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 Amboy

In Amboy in September, the total precipitation amount is 132 mm (5.2 in) over a span of 9 days.

September Precipitation Trends in Amboy

The chart displays monthly precipitation patterns in Amboy, 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 Amboy, September typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec304303225194102901517132237310322
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Amboy

In Amboy in September humidity is 71%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making travel slightly uncomfortable as you feel sticky and sluggish.

September Average Humidity in Amboy

This chart illustrates the average monthly humidity levels in Amboy, 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 Amboy is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Amboy

In Amboy 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 Amboy.

Maximum UV Index Levels in Amboy for September

The chart shows the monthly maximum UV Index (UVI) for Amboy 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 Amboy typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24579101087532
Data source: Amboy 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 Amboy Compares to Other Months

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

This table compares monthly weather conditions in Amboy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)304 mm (12.0 inches)85%low
February Weather2°C (37°F)303 mm (11.9 inches)84%moderate
March Weather5°C (42°F)225 mm (8.9 inches)85%moderate
April Weather8°C (47°F)194 mm (7.7 inches)83%high
May Weather12°C (54°F)102 mm (4.0 inches)83%very high
June Weather15°C (59°F)90 mm (3.5 inches)83%very high
July Weather18°C (65°F)15 mm (0.6 inches)82%very high
August Weather19°C (66°F)17 mm (0.7 inches)74%very high
September Weather15°C (60°F)132 mm (5.2 inches)71%high
October Weather9°C (49°F)237 mm (9.3 inches)81%moderate
November Weather6°C (43°F)310 mm (12.2 inches)87%moderate
December Weather3°C (38°F)322 mm (12.7 inches)87%low

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