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October Weather in San Cristobal, Peru

Last updated: August 27, 2025

In October, the average temperature in San Cristobal, Peru hovers around 4°C (39°F), making it a brisk time of year. Visitors can expect a minimum temperature of -5°C (23°F) and a maximum of 13°C (55°F). With 156 mm (6.2 in) of precipitation spread over 27 days, staying dry might be a challenge. The average humidity is a comfortable 56%, adding to the distinct atmosphere of the season.

October Temperature in San Cristobal

In October in San Cristobal, the average temperature is 4°C (39°F). The maximum can reach 13°C (55°F), while the minimum can drop as low as -5°C (23°F). It's advisable to pack warm clothing and be prepared for chilly weather if you're traveling during this time.

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

The chart illustrates October temperature patterns in San Cristobal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Cristobal, October typically has an average temperature of 4°C (39°F), with highs reaching up to 13°C (55°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec404040393837363738394140
Data source: Temperature data for San Cristobal 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 Cristobal

In San Cristobal in October, the total precipitation amount is 156 mm (6.2 in) spread over 27 days.

October Precipitation Trends in San Cristobal

The chart displays monthly precipitation patterns in San Cristobal, 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 Cristobal, October typically receives around 156 mm (6.2 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec2192552941469132264599157197236
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Cristobal

In San Cristobal in October, humidity is 56%. With an average temperature of 4°C (39°F), this humidity feels like a chilly embrace, making travel invigorating yet brisk, and it's essential to dress in layers to stay comfortable while exploring the sights.

October Average Humidity in San Cristobal

This chart illustrates the average monthly humidity levels in San Cristobal, 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 Cristobal is approximately 56%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Cristobal

In San Cristobal in October, the maximum UV index reaches 19, which corresponds to an extreme exposure category. With a time to burn of just 10 minutes, it’s essential to take precautions. For detailed information, you can check the hourly UV index in San Cristobal.

Maximum UV Index Levels in San Cristobal for October

The chart shows the monthly maximum UV Index (UVI) for San Cristobal 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 Cristobal typically reaches 19, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec222021181513141518192020
Data source: San Cristobal 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 Cristobal Compares to Other Months

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

This table compares monthly weather conditions in San Cristobal, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)219 mm (8.6 inches)91%extreme
February Weather4°C (40°F)255 mm (10.0 inches)90%extreme
March Weather4°C (40°F)294 mm (11.6 inches)91%extreme
April Weather4°C (40°F)146 mm (5.8 inches)89%extreme
May Weather4°C (39°F)91 mm (3.6 inches)85%extreme
June Weather3°C (38°F)32 mm (1.3 inches)65%extreme
July Weather2°C (37°F)26 mm (1.0 inches)47%extreme
August Weather3°C (37°F)45 mm (1.8 inches)38%extreme
September Weather3°C (38°F)99 mm (3.9 inches)40%extreme
October Weather4°C (39°F)156 mm (6.2 inches)56%extreme
November Weather5°C (41°F)197 mm (7.8 inches)76%extreme
December Weather5°C (41°F)236 mm (9.3 inches)90%extreme

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