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October Weather in San Marcos, Colombia

Last updated: August 23, 2025

In San Marcos, Colombia, the average temperature in October hovers around 27°C (82°F), with lows of 23°C (74°F) and highs reaching up to 36°C (96°F). Expect humid conditions, with an average humidity of 86%. Be prepared for rain, as the area experiences approximately 214 mm (8.4 in) of precipitation over 29 days.

October Temperature in San Marcos

In October in San Marcos, the average temperature is 27°C (82°F) with maximums reaching 36°C (96°F) and minimums dropping to 23°C (74°F). This climate makes San Marcos an ideal destination for travelers seeking warm and pleasant weather.

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

The chart illustrates October temperature patterns in San Marcos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Marcos, October typically has an average temperature of 27°C (82°F), with highs reaching up to 36°C (96°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec838686848383838282818283
Data source: Temperature data for San Marcos 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 Marcos

In San Marcos in October, the total precipitation amount is 214 mm (8.4 in) spread over a period of 29 days.

October Precipitation Trends in San Marcos

The chart displays monthly precipitation patterns in San Marcos, 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 Marcos, October typically receives around 214 mm (8.4 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec2764815025922919820920921418664
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Marcos

In San Marcos in October humidity is 86%. With an average temperature of 27°C (82°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities a challenge and necessitating frequent breaks to stay hydrated while traveling.

October Average Humidity in San Marcos

This chart illustrates the average monthly humidity levels in San Marcos, 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 Marcos is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%67%65%67%79%87%88%87%87%86%86%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Marcos

In San Marcos in October, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Marcos.

Maximum UV Index Levels in San Marcos for October

The chart shows the monthly maximum UV Index (UVI) for San Marcos 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 Marcos typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111214151413131313131110
Data source: San Marcos 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 Marcos Compares to Other Months

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

This table compares monthly weather conditions in San Marcos, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather29°C (84°F)27 mm (1.1 inches)70%extreme
February Weather30°C (87°F)6 mm (0.2 inches)67%extreme
March Weather30°C (86°F)48 mm (1.9 inches)65%extreme
April Weather29°C (84°F)150 mm (5.9 inches)67%extreme
May Weather28°C (83°F)259 mm (10.2 inches)79%extreme
June Weather28°C (83°F)229 mm (9.0 inches)87%extreme
July Weather28°C (83°F)198 mm (7.8 inches)88%extreme
August Weather28°C (83°F)209 mm (8.2 inches)87%extreme
September Weather28°C (82°F)209 mm (8.2 inches)87%extreme
October Weather27°C (82°F)214 mm (8.4 inches)86%extreme
November Weather28°C (82°F)186 mm (7.3 inches)86%extreme
December Weather28°C (83°F)64 mm (2.5 inches)80%very high

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