January Weather in Buenos Aires, Mexico

Last updated: August 27, 2025

In Buenos Aires, Mexico, the average temperature in January is a pleasant 25°C (78°F). Expect a minimum of 19°C (66°F) and a peak of 33°C (91°F), making it ideal for outdoor activities. With only 5 mm (0.2 in) of precipitation over 0 days, you can count on dry skies, and the average humidity sits comfortably at 66%. Enjoy the beautiful weather!

January Temperature in Buenos Aires

In January in Buenos Aires, the average temperature is 25°C (78°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop to as low as 19°C (66°F). This pleasant and mild climate makes it an ideal time for travel and outdoor activities in 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 25°C (78°F), with highs reaching up to 33°C (91°F) and lows dropping to around 19°C (66°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 5 mm (0.2 in) during a span of 0 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 5 mm (0.2 inches) of precipitation spread over approximately 0 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 66%. With an average temperature of 25°C (78°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel more draining, yet still enjoyable for short adventures.

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 66%, 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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential 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 9, which falls under the very high 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	25°C (78°F)	5 mm (0.2 inches)	66%	very high
February Weather	25°C (77°F)	4 mm (0.2 inches)	64%	extreme
March Weather	25°C (78°F)	2 mm (0.1 inches)	63%	extreme
April Weather	25°C (78°F)	1 mm (0.1 inches)	69%	extreme
May Weather	26°C (80°F)	8 mm (0.3 inches)	73%	extreme
June Weather	27°C (81°F)	213 mm (8.4 inches)	76%	extreme
July Weather	28°C (82°F)	143 mm (5.6 inches)	78%	extreme
August Weather	27°C (81°F)	312 mm (12.3 inches)	79%	extreme
September Weather	27°C (81°F)	319 mm (12.5 inches)	78%	extreme
October Weather	27°C (81°F)	266 mm (10.5 inches)	75%	extreme
November Weather	26°C (80°F)	56 mm (2.2 inches)	72%	very high
December Weather	26°C (78°F)	7 mm (0.3 inches)	70%	very high