January Weather in Valparaiso, United States

Last updated: June 24, 2025

The average temperature in Valparaiso, United States during January hovers around -3°C (26°F). However, be prepared for a wide range of conditions, as temperatures can dip to a chilling -29°C (-20°F) or reach a balmy 15°C (59°F). With precipitation totaling 33 mm (1.3 in) spread over approximately 4 days, and an average humidity of 76%, it's essential to be ready for a brisk and potentially wet winter month!

January Temperature in Valparaiso

In January in Valparaiso, the average temperature is -3°C (26°F), with maximums reaching 15°C (59°F) and minimums dropping as low as -29°C (-20°F). Travelers should be prepared for a wide range of temperatures and ensure they pack appropriate clothing for both chilly and milder conditions.

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

The chart illustrates January temperature patterns in Valparaiso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valparaiso, January typically has an average temperature of -3°C (26°F), with highs reaching up to 15°C (59°F) and lows dropping to around -29°C (-20°F).

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

January Precipitation in Valparaiso

In Valparaiso in January, the precipitation amount is 33 mm (1.3 in) over a span of 4 days.

January Precipitation Trends in Valparaiso

The chart displays monthly precipitation patterns in Valparaiso, 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 Valparaiso, January typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 4 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 Valparaiso

In Valparaiso in January humidity is 76%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that penetrates your layers, making every step outside feel damp and uncomfortable for traveling.

January Average Humidity in Valparaiso

This chart illustrates the average monthly humidity levels in Valparaiso, 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 Valparaiso is approximately 76%, 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 Valparaiso

In Valparaiso 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 Valparaiso, you can check the information here.

Maximum UV Index Levels in Valparaiso for January

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

Data source: Valparaiso 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 Valparaiso Compares to Other Months

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

This table compares monthly weather conditions in Valparaiso, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	33 mm (1.3 inches)	76%	moderate
February Weather	-3°C (26°F)	27 mm (1.1 inches)	80%	moderate
March Weather	5°C (42°F)	98 mm (3.8 inches)	73%	high
April Weather	10°C (51°F)	48 mm (1.9 inches)	74%	very high
May Weather	17°C (63°F)	139 mm (5.5 inches)	78%	very high
June Weather	25°C (77°F)	108 mm (4.3 inches)	82%	very high
July Weather	26°C (79°F)	74 mm (2.9 inches)	83%	very high
August Weather	24°C (76°F)	92 mm (3.6 inches)	80%	very high
September Weather	21°C (70°F)	80 mm (3.2 inches)	75%	very high
October Weather	12°C (53°F)	115 mm (4.5 inches)	75%	high
November Weather	5°C (41°F)	29 mm (1.1 inches)	82%	moderate
December Weather	0°C (32°F)	41 mm (1.6 inches)	83%	low