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October Weather in Peru, United States

Last updated: June 24, 2025

In October, the average temperature in Peru, United States hovers around 9°C (48°F), with a minimum dipping down to -4°C (24°F) and a maximum peaking at 27°C (81°F). Expect around 128 mm (5.0 in) of precipitation spread over 11 days, contributing to an average humidity of 85%. Whether you're exploring the outdoors or cozying up inside, be prepared for the varied conditions this month!

October Temperature in Peru

In October in Peru, the average temperature is 9°C (48°F). The maximum can reach 27°C (81°F), while the minimum can drop to as low as -4°C (24°F). This wide temperature range makes it essential to pack layers for your travels.

October Weather in Peru: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Peru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Peru, October typically has an average temperature of 9°C (48°F), with highs reaching up to 27°C (81°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec182128415363686760483423
Data source: Temperature data for Peru 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.

October Precipitation in Peru

In Peru in October, the total precipitation amount is 128 mm (5.0 in) spread over 11 days.

October Precipitation Trends in Peru

The chart displays monthly precipitation patterns in Peru, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Peru, October typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec83867212887841339064128107120
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Peru

In Peru in October humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

October Average Humidity in Peru

This chart illustrates the average monthly humidity levels in Peru, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Peru is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Peru

In Peru in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Peru.

Maximum UV Index Levels in Peru for October

The chart shows the monthly maximum UV Index (UVI) for Peru in October, 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 October, the maximum UV index in Peru typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910987532
Data source: Peru October 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 October Weather in Peru Compares to Other Months

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

This table compares monthly weather conditions in Peru, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)83 mm (3.3 inches)91%low
February Weather-6°C (21°F)86 mm (3.4 inches)89%moderate
March Weather-2°C (29°F)72 mm (2.8 inches)85%moderate
April Weather5°C (41°F)128 mm (5.0 inches)84%very high
May Weather12°C (54°F)87 mm (3.4 inches)78%very high
June Weather17°C (64°F)84 mm (3.3 inches)72%very high
July Weather20°C (69°F)133 mm (5.2 inches)75%very high
August Weather19°C (67°F)90 mm (3.5 inches)74%very high
September Weather15°C (60°F)64 mm (2.5 inches)77%high
October Weather9°C (48°F)128 mm (5.0 inches)85%moderate
November Weather1°C (34°F)107 mm (4.2 inches)86%moderate
December Weather-5°C (23°F)120 mm (4.7 inches)85%low

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