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January Weather in San Marcos, Colombia

Last updated: August 23, 2025

In January, the average temperature in San Marcos, Colombia hovers around 29°C (84°F), making it a warm destination. Expect minimum temperatures of 22°C (72°F) and maximums reaching up to 37°C (99°F). During this month, anticipate about 27 mm (1.1 in) of precipitation spread over 5 days, contributing to an average humidity of 70%.

January Temperature in San Marcos

In January in San Marcos, the average temperature is 29°C (84°F). Maximums can reach 37°C (99°F), while minimums can be as low as 22°C (72°F). This warm weather makes San Marcos an ideal destination for travelers seeking sun and warmth during this time of year.

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

The chart illustrates January 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, January typically has an average temperature of 29°C (84°F), with highs reaching up to 37°C (99°F) and lows dropping to around 22°C (72°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.

January Precipitation in San Marcos

In San Marcos in January, the precipitation amount is 27 mm (1.1 in) over a period of 5 days.

January Precipitation Trends in San Marcos

The chart displays monthly precipitation patterns in San Marcos, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Marcos, January typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec2764815025922919820920921418664
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Marcos

In San Marcos in January, humidity is 70%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace that clings to your skin, making outdoor activities feel heavy and exhaustingly sticky, while also inviting you to seek refuge in shade or enjoy refreshing drinks frequently.

January Average Humidity in San Marcos

This chart illustrates the average monthly humidity levels in San Marcos, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Marcos is approximately 70%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in San Marcos

In San Marcos in January, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Marcos.

Maximum UV Index Levels in San Marcos for January

The chart shows the monthly maximum UV Index (UVI) for San Marcos in January, 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 January, the maximum UV index in San Marcos typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111214151413131313131110
Data source: San Marcos January 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 January 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 January’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 January’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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