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September Weather in Olmos, Peru

Last updated: August 27, 2025

In September, the average temperature in Olmos, Peru is a pleasant 19°C (67°F). While you can expect minimums of 12°C (54°F) and maximums soaring up to 28°C (83°F), the weather remains relatively dry, with just 7 mm (0.3 in) of precipitation spread over 1 day. With an average humidity of 42%, it's a comfortable time to explore and enjoy the outdoors!

September Temperature in Olmos

In September in Olmos, the average temperature is a comfortable 19°C (67°F). Maximum temperatures can reach up to 28°C (83°F), while the minimum can drop to as low as 12°C (54°F). This mild climate makes it an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Olmos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olmos, September typically has an average temperature of 19°C (67°F), with highs reaching up to 28°C (83°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec747575737168676667686871
Data source: Temperature data for Olmos 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 Olmos

In Olmos in September, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Olmos

The chart displays monthly precipitation patterns in Olmos, 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 Olmos, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec781503451234613778404955
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olmos

In Olmos in September humidity is 42%. With an average temperature of 19°C (67°F), this humidity feels like a comfortable embrace, perfect for leisurely strolls and exploring the sights without the heaviness often associated with higher humidity levels.

September Average Humidity in Olmos

This chart illustrates the average monthly humidity levels in Olmos, 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 Olmos is approximately 42%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%88%85%78%62%44%38%42%58%69%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olmos

In Olmos 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 Olmos.

Maximum UV Index Levels in Olmos for September

The chart shows the monthly maximum UV Index (UVI) for Olmos 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 Olmos typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617161412121315151514
Data source: Olmos 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 Olmos Compares to Other Months

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

This table compares monthly weather conditions in Olmos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)78 mm (3.1 inches)83%extreme
February Weather24°C (75°F)150 mm (5.9 inches)81%extreme
March Weather24°C (75°F)345 mm (13.6 inches)88%extreme
April Weather23°C (73°F)123 mm (4.8 inches)85%extreme
May Weather21°C (71°F)46 mm (1.8 inches)78%extreme
June Weather20°C (69°F)13 mm (0.5 inches)62%extreme
July Weather19°C (67°F)7 mm (0.3 inches)44%extreme
August Weather19°C (66°F)6 mm (0.3 inches)38%extreme
September Weather19°C (67°F)7 mm (0.3 inches)42%extreme
October Weather20°C (68°F)39 mm (1.6 inches)58%extreme
November Weather20°C (69°F)49 mm (1.9 inches)69%extreme
December Weather22°C (71°F)55 mm (2.2 inches)82%extreme

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