January Weather in Castelli, Argentina

Last updated: August 22, 2025

In Castelli, Argentina, the average temperature in January reaches a warm 28°C (83°F). Expect temperatures to vary, with minimums dropping to 15°C (58°F) and maximums soaring up to 42°C (107°F). During this month, precipitation totals about 122 mm (4.8 in) over roughly 10 days, contributing to an average humidity of 72%. Stay prepared for a mix of sun and rain!

January Temperature in Castelli

In January in Castelli, the average temperature is 28°C (83°F), with maximums reaching 42°C (107°F) and minimums dropping as low as 15°C (58°F). This makes it an ideal destination for travelers seeking warm weather, but it's important to be prepared for the heat and cool evenings.

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

The chart illustrates January temperature patterns in Castelli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelli, January typically has an average temperature of 28°C (83°F), with highs reaching up to 42°C (107°F) and lows dropping to around 15°C (58°F).

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

January Precipitation in Castelli

In Castelli in January, the total precipitation amount reaches 122 mm (4.8 in) over the course of 10 days.

January Precipitation Trends in Castelli

The chart displays monthly precipitation patterns in Castelli, 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 Castelli, January typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Castelli

In Castelli in January, humidity is 72%. With an average temperature of 28°C (83°F), this humidity feels like you're walking through a warm, damp blanket, making travel particularly stifling and sticky, where even short excursions can leave you feeling overheated and in need of frequent breaks for hydration.

January Average Humidity in Castelli

This chart illustrates the average monthly humidity levels in Castelli, 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 Castelli is approximately 72%, 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 Castelli

In Castelli in January, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Castelli, you can check here.

Maximum UV Index Levels in Castelli for January

The chart shows the monthly maximum UV Index (UVI) for Castelli 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 Castelli typically reaches 14, which falls under the extreme exposure category.

Data source: Castelli 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 Castelli Compares to Other Months

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

This table compares monthly weather conditions in Castelli, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	28°C (83°F)	122 mm (4.8 inches)	72%	extreme
February Weather	27°C (81°F)	93 mm (3.7 inches)	65%	extreme
March Weather	25°C (78°F)	95 mm (3.7 inches)	69%	extreme
April Weather	22°C (73°F)	75 mm (3.0 inches)	78%	very high
May Weather	19°C (66°F)	85 mm (3.3 inches)	84%	high
June Weather	17°C (62°F)	32 mm (1.3 inches)	70%	moderate
July Weather	16°C (61°F)	29 mm (1.1 inches)	51%	high
August Weather	18°C (66°F)	22 mm (0.8 inches)	36%	very high
September Weather	22°C (71°F)	60 mm (2.4 inches)	45%	very high
October Weather	24°C (75°F)	90 mm (3.5 inches)	46%	extreme
November Weather	26°C (79°F)	134 mm (5.3 inches)	61%	extreme
December Weather	28°C (82°F)	58 mm (2.3 inches)	76%	extreme