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October Weather in San Juan de Chacna, Peru

Last updated: August 27, 2025

In October, the average temperature in San Juan de Chacna, Peru hovers around 9°C (49°F), with a minimum dipping to -2°C (30°F) and a maximum peaking at 20°C (68°F). Expect about 108 mm (4.3 in) of precipitation spread over 25 days, contributing to an average humidity of 67%.

October Temperature in San Juan de Chacna

In October in San Juan de Chacna, the average temperature is 9°C (49°F). The maximum can reach 20°C (68°F), while the minimum can drop as low as -2°C (30°F). Visitors should be prepared for a wide range of temperatures and dress in layers during their travels.

October Weather in San Juan de Chacna: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Juan de Chacna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan de Chacna, October typically has an average temperature of 9°C (49°F), with highs reaching up to 20°C (68°F) and lows dropping to around -2°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec494948474645454548495049
Data source: Temperature data for San Juan de Chacna 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 Juan de Chacna

In San Juan de Chacna in October, the total precipitation amount is 108 mm (4.3 in) spread over 25 days.

October Precipitation Trends in San Juan de Chacna

The chart displays monthly precipitation patterns in San Juan de Chacna, 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 Juan de Chacna, October typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec205249232963914152552108155215
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Juan de Chacna

In San Juan de Chacna in October, humidity is 67%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to bundle up if you're planning to explore the area.

October Average Humidity in San Juan de Chacna

This chart illustrates the average monthly humidity levels in San Juan de Chacna, 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 Juan de Chacna is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%84%67%53%47%53%67%75%83%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Juan de Chacna

In San Juan de Chacna in October, the maximum UV index is 18, which corresponds to an extreme exposure category. This means that the time to burn is just 10 minutes. For more detailed information, you can check the hourly UV index in San Juan de Chacna.

Maximum UV Index Levels in San Juan de Chacna for October

The chart shows the monthly maximum UV Index (UVI) for San Juan de Chacna 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 Juan de Chacna typically reaches 18, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919171411131416181918
Data source: San Juan de Chacna 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 Juan de Chacna Compares to Other Months

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

This table compares monthly weather conditions in San Juan de Chacna, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)205 mm (8.1 inches)89%extreme
February Weather9°C (49°F)249 mm (9.8 inches)90%extreme
March Weather9°C (49°F)232 mm (9.1 inches)90%extreme
April Weather9°C (48°F)96 mm (3.8 inches)90%extreme
May Weather8°C (46°F)39 mm (1.5 inches)84%extreme
June Weather7°C (45°F)14 mm (0.6 inches)67%extreme
July Weather7°C (45°F)15 mm (0.6 inches)53%extreme
August Weather7°C (46°F)25 mm (1.0 inches)47%extreme
September Weather9°C (48°F)52 mm (2.0 inches)53%extreme
October Weather9°C (49°F)108 mm (4.3 inches)67%extreme
November Weather10°C (50°F)154 mm (6.1 inches)75%extreme
December Weather10°C (50°F)215 mm (8.5 inches)82%extreme

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