January Weather in San Martin, Argentina

Last updated: August 22, 2025

In January, the average temperature in San Martin, Argentina hovers around 27°C (80°F). Expect a minimum of 10°C (51°F), but the heat can surge up to a scorching 41°C (106°F). With 19 mm (0.8 in) of precipitation over 2 days, the average humidity remains a comfortable 44%, creating a pleasant atmosphere for your visit.

January Temperature in San Martin

In January in San Martin, the average temperature is 27°C (80°F). Maximum can reach 41°C (106°F) and minimum can be as low as 10°C (51°F). Travelers should be prepared for a wide range of temperatures and stay hydrated while enjoying the warm weather.

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

The chart illustrates January 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, January typically has an average temperature of 27°C (80°F), with highs reaching up to 41°C (106°F) and lows dropping to around 10°C (51°F).

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

January Precipitation in San Martin

In San Martin in January, the precipitation amount is 19 mm (0.8 in) over a span of 2 days.

January Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San Martin, 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 Martin, January typically receives around 19 mm (0.8 inches) of precipitation spread over approximately 2 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 San Martin

In San Martin in January humidity is 44%. With an average temperature of 27°C (80°F), this humidity feels like a comfortable embrace, making it pleasant for traveling as long as you stay hydrated and enjoy the warm air.

January Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San Martin, 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 Martin is approximately 44%, 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 San Martin

In San Martin 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 San Martin.

Maximum UV Index Levels in San Martin for January

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

Data source: San Martin 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 Martin Compares to Other Months

Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	19 mm (0.8 inches)	44%	extreme
February Weather	25°C (77°F)	17 mm (0.7 inches)	48%	extreme
March Weather	22°C (72°F)	17 mm (0.7 inches)	56%	extreme
April Weather	18°C (65°F)	15 mm (0.6 inches)	67%	very high
May Weather	14°C (57°F)	11 mm (0.4 inches)	66%	high
June Weather	9°C (49°F)	6 mm (0.2 inches)	58%	moderate
July Weather	9°C (48°F)	8 mm (0.3 inches)	58%	moderate
August Weather	12°C (54°F)	3 mm (0.1 inches)	52%	high
September Weather	16°C (61°F)	12 mm (0.5 inches)	45%	very high
October Weather	19°C (67°F)	13 mm (0.5 inches)	43%	extreme
November Weather	23°C (73°F)	14 mm (0.5 inches)	41%	extreme
December Weather	25°C (77°F)	18 mm (0.7 inches)	37%	extreme