January Weather in Buenos Aires, Colombia

Last updated: August 23, 2025

In January, the average temperature in Buenos Aires, Colombia hovers around 18°C (65°F). Expect a cool minimum of 8°C (46°F), while the mercury can rise to a comfortable 26°C (79°F). Precipitation is significant, with an average of 191 mm (7.5 in) spread over 24 days, contributing to a humidity level of 74%.

January Temperature in Buenos Aires

In January in Buenos Aires, the average temperature is 18°C (65°F). Maximums can reach 26°C (79°F) and minimums can be as low as 8°C (46°F). This mild weather makes it an ideal time for travelers to explore the beauty and attractions of Buenos Aires.

January Weather in Buenos Aires: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Buenos Aires, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buenos Aires, January typically has an average temperature of 18°C (65°F), with highs reaching up to 26°C (79°F) and lows dropping to around 8°C (46°F).

Data source: Temperature data for Buenos Aires generated using information from the Copernicus Climate Change Service.

January Precipitation in Buenos Aires

In Buenos Aires in January, the precipitation amount is 191 mm (7.5 in) spread over 24 days.

January Precipitation Trends in Buenos Aires

The chart displays monthly precipitation patterns in Buenos Aires, 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 Buenos Aires, January typically receives around 191 mm (7.5 inches) of precipitation spread over approximately 24 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Buenos Aires

In Buenos Aires in January humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.

January Average Humidity in Buenos Aires

This chart illustrates the average monthly humidity levels in Buenos Aires, 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 Buenos Aires is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Buenos Aires

In Buenos Aires in January, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Buenos Aires.

Maximum UV Index Levels in Buenos Aires for January

The chart shows the monthly maximum UV Index (UVI) for Buenos Aires 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 Buenos Aires typically reaches 15, which falls under the extreme exposure category.

Data source: Buenos Aires 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 Buenos Aires Compares to Other Months

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

This table compares monthly weather conditions in Buenos Aires, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	191 mm (7.5 inches)	74%	extreme
February Weather	19°C (66°F)	280 mm (11.0 inches)	71%	extreme
March Weather	19°C (66°F)	313 mm (12.3 inches)	78%	extreme
April Weather	19°C (66°F)	333 mm (13.1 inches)	81%	extreme
May Weather	19°C (66°F)	315 mm (12.4 inches)	88%	extreme
June Weather	18°C (66°F)	260 mm (10.2 inches)	85%	extreme
July Weather	18°C (66°F)	213 mm (8.4 inches)	75%	extreme
August Weather	18°C (66°F)	174 mm (6.8 inches)	64%	extreme
September Weather	18°C (65°F)	188 mm (7.4 inches)	69%	extreme
October Weather	18°C (65°F)	329 mm (13.0 inches)	80%	extreme
November Weather	18°C (65°F)	335 mm (13.2 inches)	85%	extreme
December Weather	18°C (65°F)	324 mm (12.8 inches)	82%	extreme