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September Weather in Shelby, Peru

Last updated: August 27, 2025

In September, the average temperature in Shelby, Peru hovers around 5°C (41°F), making it a brisk time of year. Expect minimum temperatures to dip as low as -4°C (25°F), while the mercury can rise to a comfortable 14°C (58°F). During this month, precipitation averages 67 mm (2.7 in) over 19 days, and the air tends to be relatively dry, with an average humidity of just 40%.

September Temperature in Shelby

In September in Shelby, the average temperature is 5°C (41°F), with maximums reaching up to 14°C (58°F) and minimums dipping as low as -4°C (25°F). Be prepared for chilly weather and pack layers to stay comfortable during your travels.

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

The chart illustrates September temperature patterns in Shelby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shelby, September typically has an average temperature of 5°C (41°F), with highs reaching up to 14°C (58°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec434343424140393940424343
Data source: Temperature data for Shelby 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 Shelby

In Shelby in September, the precipitation amount is 67 mm (2.7 in) spread over 19 days.

September Precipitation Trends in Shelby

The chart displays monthly precipitation patterns in Shelby, 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 Shelby, September typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1802012061067231233667115152187
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shelby

In Shelby in September, humidity is 40%. With average temperature 5°C (41°F), this humidity feels like a chilly, crisp morning, making it ideal for brisk walks and exploring the area comfortably without the heaviness of oppressive moisture.

September Average Humidity in Shelby

This chart illustrates the average monthly humidity levels in Shelby, 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 Shelby is approximately 40%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shelby

In Shelby in September, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Shelby, you can check Hourly UV Index in Shelby.

Maximum UV Index Levels in Shelby for September

The chart shows the monthly maximum UV Index (UVI) for Shelby 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 Shelby typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec202020181513141517191918
Data source: Shelby 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 Shelby Compares to Other Months

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

This table compares monthly weather conditions in Shelby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)180 mm (7.1 inches)91%extreme
February Weather6°C (43°F)201 mm (7.9 inches)90%extreme
March Weather6°C (43°F)206 mm (8.1 inches)91%extreme
April Weather6°C (42°F)106 mm (4.2 inches)89%extreme
May Weather5°C (42°F)71 mm (2.8 inches)85%extreme
June Weather5°C (40°F)31 mm (1.2 inches)65%extreme
July Weather4°C (39°F)23 mm (0.9 inches)47%extreme
August Weather4°C (40°F)36 mm (1.4 inches)38%extreme
September Weather5°C (41°F)67 mm (2.7 inches)40%extreme
October Weather5°C (42°F)115 mm (4.5 inches)56%extreme
November Weather6°C (43°F)152 mm (6.0 inches)76%extreme
December Weather6°C (44°F)187 mm (7.3 inches)90%extreme

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