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September Weather in Potoni, Peru

Last updated: August 27, 2025

In Potoni, Peru, the average temperature in September hovers around 5°C (41°F). Prepare for a range of conditions, as the temperature can dip to a brisk -7°C (20°F) or rise to a mild 17°C (63°F). Expect 44 mm (1.7 in) of precipitation spread over 16 days, contributing to an average humidity of 67%. Stay ready for a mix of chilly and wet weather!

September Temperature in Potoni

In September in Potoni, the average temperature is 5°C (41°F). Maximums can reach 17°C (63°F), while minimums can drop as low as -7°C (20°F). Travelers should be prepared for chilly and variable weather conditions, so packing layers is essential.

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

The chart illustrates September temperature patterns in Potoni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Potoni, September typically has an average temperature of 5°C (41°F), with highs reaching up to 17°C (63°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec434242424038374041424443
Data source: Temperature data for Potoni 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 Potoni

In Potoni, in September, the precipitation amount is 44 mm (1.7 in) over the course of 16 days.

September Precipitation Trends in Potoni

The chart displays monthly precipitation patterns in Potoni, 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 Potoni, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec16219517388411913194492124189
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Potoni

In Potoni in September humidity is 67%. With an average temperature of 5°C (41°F), this humidity feels like a chilly blanket wrapping around you, making outdoor activities brisk and invigorating yet slightly uncomfortable if you're not properly layered.

September Average Humidity in Potoni

This chart illustrates the average monthly humidity levels in Potoni, 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 Potoni 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 Potoni

In Potoni in September, the maximum UV index reaches 20, which falls under the extreme Exposure Category. This means that the time to burn is just 10 minutes. To stay informed about the hourly UV Index in Potoni, you can visit Hourly UV Index in Potoni.

Maximum UV Index Levels in Potoni for September

The chart shows the monthly maximum UV Index (UVI) for Potoni 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 Potoni typically reaches 20, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec232023171412131720202021
Data source: Potoni 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 Potoni Compares to Other Months

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

This table compares monthly weather conditions in Potoni, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)162 mm (6.4 inches)92%extreme
February Weather6°C (43°F)195 mm (7.7 inches)93%extreme
March Weather6°C (43°F)173 mm (6.8 inches)92%extreme
April Weather5°C (42°F)88 mm (3.5 inches)91%extreme
May Weather4°C (40°F)41 mm (1.6 inches)87%extreme
June Weather3°C (38°F)19 mm (0.8 inches)76%extreme
July Weather3°C (38°F)13 mm (0.5 inches)57%extreme
August Weather4°C (40°F)19 mm (0.8 inches)51%extreme
September Weather5°C (41°F)44 mm (1.7 inches)67%extreme
October Weather6°C (42°F)92 mm (3.6 inches)77%extreme
November Weather7°C (44°F)124 mm (4.9 inches)85%extreme
December Weather6°C (43°F)189 mm (7.4 inches)90%extreme

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