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September Weather in Olleros, Peru

Last updated: August 27, 2025

In September, the average temperature in Olleros, Peru hovers around 6°C (44°F). Expect chilly nights with minimum temperatures dipping to -2°C (29°F), while daytime can reach a pleasant 14°C (57°F). Prepare for a wet month, as precipitation levels accumulate to 162 mm (6.4 in) over 28 days, with an average humidity of 62%.

September Temperature in Olleros

In September in Olleros, the average temperature is 6°C (44°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -2°C (29°F). Travelers should be prepared for chilly weather and pack accordingly for the varying temperatures.

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

The chart illustrates September temperature patterns in Olleros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olleros, September typically has an average temperature of 6°C (44°F), with highs reaching up to 14°C (57°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec434443434443434343434444
Data source: Temperature data for Olleros 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 Olleros

In Olleros in September, the precipitation amount is 162 mm (6.4 in) during a span of 28 days.

September Precipitation Trends in Olleros

The chart displays monthly precipitation patterns in Olleros, 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 Olleros, September typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec255288355223147716676162205189257
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olleros

In Olleros in September humidity is 62%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill in the air, making outdoor exploration brisk and invigorating, yet a bit uncomfortable for prolonged stays without proper layering.

September Average Humidity in Olleros

This chart illustrates the average monthly humidity levels in Olleros, 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 Olleros is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%90%89%84%73%55%53%62%82%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olleros

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

Maximum UV Index Levels in Olleros for September

The chart shows the monthly maximum UV Index (UVI) for Olleros 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 Olleros typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919181513141517181818
Data source: Olleros 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 Olleros Compares to Other Months

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

This table compares monthly weather conditions in Olleros, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)255 mm (10.0 inches)91%extreme
February Weather6°C (44°F)288 mm (11.3 inches)89%extreme
March Weather6°C (43°F)355 mm (14.0 inches)89%extreme
April Weather6°C (44°F)223 mm (8.8 inches)88%extreme
May Weather7°C (44°F)147 mm (5.8 inches)84%extreme
June Weather6°C (44°F)71 mm (2.8 inches)73%extreme
July Weather6°C (43°F)66 mm (2.6 inches)55%extreme
August Weather6°C (43°F)76 mm (3.0 inches)53%extreme
September Weather6°C (44°F)162 mm (6.4 inches)62%extreme
October Weather6°C (44°F)205 mm (8.1 inches)82%extreme
November Weather7°C (45°F)189 mm (7.5 inches)89%extreme
December Weather7°C (44°F)257 mm (10.1 inches)91%extreme

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