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October Weather in San Alejandro, Peru

Last updated: August 27, 2025

In October, the average temperature in San Alejandro, Peru hovers around 26°C (80°F), making it quite pleasant. However, be prepared for temperature fluctuations, as it can drop to a cool 20°C (68°F) or soar to a scorching 38°C (100°F). This month also brings 236 mm (9.3 in) of precipitation over about 22 days, contributing to a 50% average humidity. Pack accordingly to enjoy your stay!

October Temperature in San Alejandro

In October in San Alejandro, the average temperature is 26°C (80°F), with maximums reaching up to 38°C (100°F) and minimums dropping to 20°C (68°F). It's an ideal time for travelers to enjoy warm weather while exploring the vibrant sights of San Alejandro.

October Weather in San Alejandro: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Alejandro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Alejandro, October typically has an average temperature of 26°C (80°F), with highs reaching up to 38°C (100°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec787978787877777980797979
Data source: Temperature data for San Alejandro 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 San Alejandro

In San Alejandro in October, the precipitation amount is 236 mm (9.3 in) distributed over 22 days.

October Precipitation Trends in San Alejandro

The chart displays monthly precipitation patterns in San Alejandro, 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 San Alejandro, October typically receives around 236 mm (9.3 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec304364406240178998676117236341308
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Alejandro

In San Alejandro in October, humidity is 50%. With an average temperature of 26°C (80°F), this humidity feels like a comfortable embrace, making it pleasant for traveling as long as you stay hydrated and enjoy the warm breezes.

October Average Humidity in San Alejandro

This chart illustrates the average monthly humidity levels in San Alejandro, 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 San Alejandro is approximately 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%89%89%86%71%44%34%37%50%73%91%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Alejandro

In San Alejandro in October, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Alejandro, you can check here.

Maximum UV Index Levels in San Alejandro for October

The chart shows the monthly maximum UV Index (UVI) for San Alejandro 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 San Alejandro typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161211111214141514
Data source: San Alejandro 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 San Alejandro Compares to Other Months

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

This table compares monthly weather conditions in San Alejandro, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)304 mm (12.0 inches)88%extreme
February Weather26°C (79°F)364 mm (14.3 inches)86%extreme
March Weather26°C (78°F)406 mm (16.0 inches)89%extreme
April Weather26°C (78°F)240 mm (9.4 inches)89%extreme
May Weather25°C (78°F)178 mm (7.0 inches)86%extreme
June Weather25°C (77°F)99 mm (3.9 inches)71%extreme
July Weather25°C (77°F)86 mm (3.4 inches)44%extreme
August Weather26°C (79°F)76 mm (3.0 inches)34%extreme
September Weather27°C (81°F)117 mm (4.6 inches)37%extreme
October Weather26°C (80°F)236 mm (9.3 inches)50%extreme
November Weather26°C (79°F)341 mm (13.4 inches)73%extreme
December Weather26°C (79°F)308 mm (12.1 inches)91%extreme

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