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September Weather in Challas, Peru

Last updated: August 27, 2025

In September, the average temperature in Challas, Peru hovers around 11°C (53°F), with a minimum dip of 4°C (39°F) and a comfortable maximum reaching 21°C (70°F). Expect 84 mm (3.3 in) of precipitation spread over 21 days, accompanied by an average humidity of 37%. Prepare for a mix of cool weather and occasional rain!

September Temperature in Challas

In September, in Challas, the average temperature is 11°C (53°F). Maximum temperatures can reach 21°C (70°F), while minimums can drop as low as 4°C (39°F). Be prepared for mild weather and pack accordingly for both warm and cool experiences.

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

The chart illustrates September temperature patterns in Challas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Challas, September typically has an average temperature of 11°C (53°F), with highs reaching up to 21°C (70°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec545554535353525252535555
Data source: Temperature data for Challas 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 Challas

In Challas in September, the total precipitation amount is 84 mm (3.3 in) occurring over the course of 21 days.

September Precipitation Trends in Challas

The chart displays monthly precipitation patterns in Challas, 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 Challas, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1991892651669656414684173203225
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Challas

In Challas in September humidity is 37%. With an average temperature of 11°C (53°F), this humidity feels like a refreshing but slightly brisk climate, making travel pleasant for outdoor activities yet requiring a light jacket for comfort.

September Average Humidity in Challas

This chart illustrates the average monthly humidity levels in Challas, 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 Challas is approximately 37%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%89%89%86%71%44%34%37%50%73%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Challas

In Challas 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 Challas, you can check Hourly UV Index in Challas.

Maximum UV Index Levels in Challas for September

The chart shows the monthly maximum UV Index (UVI) for Challas 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 Challas typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181919181513141417181717
Data source: Challas 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 Challas Compares to Other Months

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

This table compares monthly weather conditions in Challas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)199 mm (7.9 inches)88%extreme
February Weather13°C (55°F)189 mm (7.4 inches)86%extreme
March Weather12°C (54°F)265 mm (10.4 inches)89%extreme
April Weather12°C (54°F)166 mm (6.5 inches)89%extreme
May Weather12°C (54°F)96 mm (3.8 inches)86%extreme
June Weather12°C (53°F)56 mm (2.2 inches)71%extreme
July Weather11°C (52°F)41 mm (1.6 inches)44%extreme
August Weather11°C (52°F)46 mm (1.8 inches)34%extreme
September Weather11°C (53°F)84 mm (3.3 inches)37%extreme
October Weather12°C (54°F)173 mm (6.8 inches)50%extreme
November Weather13°C (55°F)203 mm (8.0 inches)73%extreme
December Weather13°C (55°F)225 mm (8.9 inches)91%extreme

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