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September Weather in Llalli, Peru

Last updated: August 27, 2025

In September, the average temperature in Llalli, Peru hovers around 7°C (45°F). Expect a chilly minimum of -8°C (19°F) and a pleasant maximum of 20°C (68°F). The area experiences about 39 mm (1.5 in) of precipitation over 11 days, and the average humidity sits comfortably at 67%.

September Temperature in Llalli

In September in Llalli, the average temperature is 7°C (45°F). Maximums can reach 20°C (68°F) while minimums can dip as low as -8°C (19°F). It's a great time to explore Llalli if you're prepared for a mix of mild and chilly weather.

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

The chart illustrates September temperature patterns in Llalli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Llalli, September typically has an average temperature of 7°C (45°F), with highs reaching up to 20°C (68°F) and lows dropping to around -8°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec444343424039394245454645
Data source: Temperature data for Llalli 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 Llalli

In Llalli in September, the precipitation amount is 39 mm (1.5 in) over the course of 11 days.

September Precipitation Trends in Llalli

The chart displays monthly precipitation patterns in Llalli, 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 Llalli, September typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec20726225193295663995130228
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Llalli

In Llalli in September humidity is 67%. With an average temperature of 7°C (45°F), this humidity feels like a chilly, damp embrace that can make outdoor activities somewhat uncomfortable, especially for travelers who may need to dress in layers to counteract the coolness while still managing the moist air.

September Average Humidity in Llalli

This chart illustrates the average monthly humidity levels in Llalli, 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 Llalli is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%92%91%87%76%57%51%67%77%85%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Llalli

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

Maximum UV Index Levels in Llalli for September

The chart shows the monthly maximum UV Index (UVI) for Llalli 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 Llalli typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec212319171411131517181919
Data source: Llalli 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 Llalli Compares to Other Months

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

This table compares monthly weather conditions in Llalli, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)207 mm (8.1 inches)92%extreme
February Weather6°C (44°F)262 mm (10.3 inches)93%extreme
March Weather6°C (43°F)251 mm (9.9 inches)92%extreme
April Weather6°C (43°F)93 mm (3.7 inches)91%extreme
May Weather4°C (40°F)29 mm (1.1 inches)87%extreme
June Weather4°C (39°F)5 mm (0.2 inches)76%extreme
July Weather4°C (40°F)6 mm (0.2 inches)57%extreme
August Weather5°C (42°F)6 mm (0.2 inches)51%extreme
September Weather7°C (45°F)39 mm (1.5 inches)67%extreme
October Weather7°C (45°F)95 mm (3.7 inches)77%extreme
November Weather8°C (47°F)130 mm (5.1 inches)85%extreme
December Weather7°C (45°F)228 mm (9.0 inches)90%extreme

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