January Weather in Montevideo, United States

Last updated: June 24, 2025

In Montevideo, United States during January, the average temperature hovers around -9°C (15°F), with extremes ranging from a chilling -35°C (-30°F) to a milder 9°C (48°F). Expect precipitation of about 20 mm (0.8 in) spread over 5 days, accompanied by a notably high average humidity of 85%. This combination creates a unique winter experience, perfect for those who appreciate the cold!

January Temperature in Montevideo

In January in Montevideo, the average temperature is -9°C (15°F). The maximum can reach 9°C (48°F) and the minimum can be as low as -35°C (-30°F). Travelers should be prepared for extremely cold conditions and ensure they have proper winter gear for their visit.

January Weather in Montevideo: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Montevideo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montevideo, January typically has an average temperature of -9°C (15°F), with highs reaching up to 9°C (48°F) and lows dropping to around -35°C (-30°F).

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

January Precipitation in Montevideo

In Montevideo in January, the precipitation amount is 20 mm (0.8 in) over a period of 5 days.

January Precipitation Trends in Montevideo

The chart displays monthly precipitation patterns in Montevideo, 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 Montevideo, January typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 5 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 Montevideo

In Montevideo in January, humidity is 85%. With an average temperature of -9°C (15°F), this humidity feels like a bone-chilling dampness that seeps into your clothes, making every step outside feel heavier and more uncomfortable, making travel quite challenging.

January Average Humidity in Montevideo

This chart illustrates the average monthly humidity levels in Montevideo, 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 Montevideo is approximately 85%, 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 Montevideo

In Montevideo in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Montevideo, you can check the information here.

Maximum UV Index Levels in Montevideo for January

The chart shows the monthly maximum UV Index (UVI) for Montevideo 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 Montevideo typically reaches 3, which falls under the moderate exposure category.

Data source: Montevideo 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 Montevideo Compares to Other Months

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

This table compares monthly weather conditions in Montevideo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (15°F)	20 mm (0.8 inches)	85%	moderate
February Weather	-9°C (15°F)	20 mm (0.8 inches)	89%	moderate
March Weather	0°C (32°F)	53 mm (2.1 inches)	81%	moderate
April Weather	6°C (43°F)	69 mm (2.7 inches)	82%	high
May Weather	15°C (59°F)	101 mm (4.0 inches)	76%	very high
June Weather	22°C (72°F)	82 mm (3.2 inches)	81%	very high
July Weather	23°C (74°F)	102 mm (4.0 inches)	82%	very high
August Weather	21°C (71°F)	133 mm (5.2 inches)	83%	very high
September Weather	18°C (64°F)	95 mm (3.8 inches)	82%	high
October Weather	9°C (48°F)	89 mm (3.5 inches)	82%	moderate
November Weather	1°C (34°F)	26 mm (1.0 inches)	87%	moderate
December Weather	-5°C (24°F)	38 mm (1.5 inches)	84%	low