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December Weather in San Martin, Colombia

Last updated: August 23, 2025

In December, the average temperature in San Martin, Colombia is 24°C (76°F). Expect comfortable days with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 32°C (90°F). You'll encounter about 78 mm (3.1 in) of precipitation over 9 days, and the air is 70% humid, creating a pleasantly tropical atmosphere.

December Temperature in San Martin

In December in San Martin, the average temperature is 24°C (76°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 16°C (62°F). This makes San Martin an ideal destination for travelers seeking warm and pleasant weather.

December Weather in San Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martin, December typically has an average temperature of 24°C (76°F), with highs reaching up to 32°C (90°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec767877757473737475767576
Data source: Temperature data for San Martin 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.

December Precipitation in San Martin

In San Martin in December, the precipitation amount is 78 mm (3.1 in) over the course of 9 days.

December Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San Martin, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In San Martin, December typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec58861612573832662811179817722678
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Martin

In San Martin in December, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

December Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San Martin, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in San Martin is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec49%46%52%73%90%93%87%67%57%56%68%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Martin

In San Martin in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Martin.

Maximum UV Index Levels in San Martin for December

The chart shows the monthly maximum UV Index (UVI) for San Martin in December, 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 December, the maximum UV index in San Martin typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131415161513131414141312
Data source: San Martin December 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 December Weather in San Martin Compares to Other Months

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

This table compares monthly weather conditions in San Martin, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)58 mm (2.3 inches)49%extreme
February Weather25°C (78°F)86 mm (3.4 inches)46%extreme
March Weather25°C (77°F)161 mm (6.3 inches)52%extreme
April Weather24°C (76°F)256 mm (10.1 inches)73%extreme
May Weather23°C (75°F)383 mm (15.1 inches)90%extreme
June Weather23°C (74°F)266 mm (10.5 inches)93%extreme
July Weather23°C (73°F)281 mm (11.0 inches)87%extreme
August Weather23°C (74°F)117 mm (4.6 inches)67%extreme
September Weather24°C (76°F)98 mm (3.9 inches)57%extreme
October Weather24°C (76°F)177 mm (7.0 inches)56%extreme
November Weather24°C (76°F)226 mm (8.9 inches)68%extreme
December Weather24°C (76°F)78 mm (3.1 inches)70%extreme

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