January Weather in Union, Paraguay

Last updated: August 31, 2025

In January, the average temperature in Union, Paraguay reaches a warm 28°C (82°F). Expect a range of minimum temperatures around 16°C (62°F) and maximums soaring up to 41°C (106°F). With an average humidity of 80%, it feels quite tropical. Be prepared for precipitation totaling 142 mm (5.6 in) over approximately 13 days of the month, adding a splash of moisture to the warm weather.

January Temperature in Union

In January in Union, the average temperature is 28°C (82°F), with maximums reaching up to 41°C (106°F) and minimums dropping as low as 16°C (62°F). Be prepared for warm weather, but don’t forget to pack a light sweater for the cooler evenings.

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

The chart illustrates January temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, January typically has an average temperature of 28°C (82°F), with highs reaching up to 41°C (106°F) and lows dropping to around 16°C (62°F).

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

January Precipitation in Union

In Union in January, the precipitation amount is 142 mm (5.6 in) spread over 13 days.

January Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, 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 Union, January typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 13 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 Union

In Union in January, humidity is 80%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket enveloping you, making outdoor activities sweaty and demanding frequent breaks in the shade while traveling.

January Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, 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 Union is approximately 80%, 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 Union

In Union 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 Union.

Maximum UV Index Levels in Union for January

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

Data source: Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Union, 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 (82°F)	142 mm (5.6 inches)	80%	extreme
February Weather	27°C (81°F)	102 mm (4.0 inches)	75%	extreme
March Weather	26°C (79°F)	102 mm (4.0 inches)	76%	extreme
April Weather	23°C (74°F)	137 mm (5.4 inches)	76%	extreme
May Weather	20°C (69°F)	120 mm (4.7 inches)	75%	high
June Weather	19°C (66°F)	88 mm (3.5 inches)	65%	high
July Weather	18°C (65°F)	36 mm (1.4 inches)	60%	high
August Weather	20°C (69°F)	66 mm (2.6 inches)	43%	very high
September Weather	24°C (75°F)	70 mm (2.8 inches)	47%	very high
October Weather	25°C (77°F)	194 mm (7.6 inches)	52%	extreme
November Weather	26°C (79°F)	136 mm (5.4 inches)	71%	extreme
December Weather	27°C (81°F)	150 mm (5.9 inches)	84%	extreme