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September Weather in Atahualpa, Peru

Last updated: August 27, 2025

In September, the average temperature in Atahualpa, Peru hovers around 25°C (78°F). Expect a comfortable range with minimums dipping to 18°C (65°F) and maximums soaring to 34°C (93°F). Precipitation is fairly common, with an average of 166 mm (6.5 in) falling over 19 days, while the average humidity sits at a pleasant 49%.

September Temperature in Atahualpa

In September in Atahualpa, the average temperature is 25°C (78°F). The maximum can reach 34°C (93°F) and the minimum can be as low as 18°C (65°F). This makes it an ideal time for travelers to enjoy outdoor activities while staying comfortable in the warm weather.

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

The chart illustrates September temperature patterns in Atahualpa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Atahualpa, September typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (93°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec787877777776757677787878
Data source: Temperature data for Atahualpa 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 Atahualpa

In Atahualpa in September, the total precipitation amount reaches 166 mm (6.5 in) over the course of 19 days.

September Precipitation Trends in Atahualpa

The chart displays monthly precipitation patterns in Atahualpa, 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 Atahualpa, September typically receives around 166 mm (6.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec291272424310271236169157166287359382
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Atahualpa

In Atahualpa in September, humidity is 49%. With an average temperature of 25°C (78°F), this humidity feels like a comfortable embrace, making it ideal for exploring the surroundings without causing discomfort or excessive sweating.

September Average Humidity in Atahualpa

This chart illustrates the average monthly humidity levels in Atahualpa, 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 Atahualpa is approximately 49%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%85%87%88%73%51%44%49%71%77%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Atahualpa

In Atahualpa in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Atahualpa.

Maximum UV Index Levels in Atahualpa for September

The chart shows the monthly maximum UV Index (UVI) for Atahualpa 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 Atahualpa typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161616161412121315151413
Data source: Atahualpa 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 Atahualpa Compares to Other Months

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

This table compares monthly weather conditions in Atahualpa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)291 mm (11.4 inches)82%extreme
February Weather26°C (78°F)272 mm (10.7 inches)80%extreme
March Weather25°C (78°F)424 mm (16.7 inches)85%extreme
April Weather25°C (77°F)310 mm (12.2 inches)87%extreme
May Weather25°C (77°F)271 mm (10.7 inches)88%extreme
June Weather24°C (76°F)236 mm (9.3 inches)73%extreme
July Weather24°C (75°F)169 mm (6.6 inches)51%extreme
August Weather25°C (77°F)157 mm (6.2 inches)44%extreme
September Weather25°C (78°F)166 mm (6.5 inches)49%extreme
October Weather25°C (78°F)287 mm (11.3 inches)71%extreme
November Weather26°C (78°F)359 mm (14.1 inches)77%extreme
December Weather25°C (78°F)381 mm (15.0 inches)85%extreme

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