January Weather in Rosario de Lerma, Argentina

Last updated: August 22, 2025

In January, the average temperature in Rosario de Lerma, Argentina is a pleasant 20°C (69°F), making it an ideal time to explore. Expect a minimum of 12°C (54°F) and a maximum of 32°C (90°F), providing a range for outdoor adventures. However, be prepared for 167 mm (6.6 in) of precipitation spread over approximately 20 days, and experience an average humidity level of 84%, giving the air a refreshing, tropical feel.

January Temperature in Rosario de Lerma

In January in Rosario de Lerma, the average temperature is 20°C (69°F). Maximums can reach 32°C (90°F), and minimums can be as low as 12°C (54°F). This pleasant weather makes it an ideal time for travel and outdoor activities in Rosario de Lerma.

January Weather in Rosario de Lerma: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rosario de Lerma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario de Lerma, January typically has an average temperature of 20°C (69°F), with highs reaching up to 32°C (90°F) and lows dropping to around 12°C (54°F).

Data source: Temperature data for Rosario de Lerma generated using information from the Copernicus Climate Change Service.

January Precipitation in Rosario de Lerma

In Rosario de Lerma, in January, the precipitation amount is 167 mm (6.6 in) over a period of 20 days.

January Precipitation Trends in Rosario de Lerma

The chart displays monthly precipitation patterns in Rosario de Lerma, 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 Rosario de Lerma, January typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 20 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 Rosario de Lerma

In Rosario de Lerma in January humidity is 84%. With an average temperature of 20°C (69°F), this humidity feels like walking through a warm, moist blanket, making travel feel heavy and slightly fatigued as the heat clings to your skin and leaves you yearning for a refreshing breeze.

January Average Humidity in Rosario de Lerma

This chart illustrates the average monthly humidity levels in Rosario de Lerma, 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 Rosario de Lerma is approximately 84%, 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 Rosario de Lerma

In Rosario de Lerma in January, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Rosario de Lerma, you can check Hourly UV Index in Rosario de Lerma.

Maximum UV Index Levels in Rosario de Lerma for January

The chart shows the monthly maximum UV Index (UVI) for Rosario de Lerma 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 Rosario de Lerma typically reaches 17, which falls under the extreme exposure category.

Data source: Rosario de Lerma 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 Rosario de Lerma Compares to Other Months

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

This table compares monthly weather conditions in Rosario de Lerma, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (69°F)	167 mm (6.6 inches)	84%	extreme
February Weather	19°C (67°F)	189 mm (7.4 inches)	87%	extreme
March Weather	18°C (64°F)	171 mm (6.7 inches)	88%	extreme
April Weather	16°C (61°F)	143 mm (5.6 inches)	85%	extreme
May Weather	13°C (55°F)	71 mm (2.8 inches)	74%	very high
June Weather	10°C (50°F)	31 mm (1.2 inches)	56%	high
July Weather	10°C (50°F)	26 mm (1.0 inches)	47%	very high
August Weather	12°C (53°F)	18 mm (0.7 inches)	44%	very high
September Weather	15°C (59°F)	28 mm (1.1 inches)	57%	extreme
October Weather	18°C (64°F)	76 mm (3.0 inches)	55%	extreme
November Weather	19°C (66°F)	112 mm (4.4 inches)	70%	extreme
December Weather	20°C (68°F)	156 mm (6.2 inches)	77%	extreme