January Weather in Porto Uniao, Brazil

Last updated: August 22, 2025

In Porto Uniao, Brazil, the average temperature in January hovers around 21°C (70°F), with daily extremes ranging from a refreshing 13°C (55°F) to a warm 32°C (90°F). Expect about 143 mm (5.6 in) of precipitation spread across 19 days, contributing to the region's average humidity of 85%. It's a lush month, perfect for enjoying the vibrant scenery!

January Temperature in Porto Uniao

In January in Porto Uniao, the average temperature is 21°C (70°F). Maximum temperatures can reach 32°C (90°F), while the minimum can drop as low as 13°C (55°F). This pleasant climate makes Porto Uniao an ideal destination for outdoor activities and sightseeing.

January Weather in Porto Uniao: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Porto Uniao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto Uniao, January typically has an average temperature of 21°C (70°F), with highs reaching up to 32°C (90°F) and lows dropping to around 13°C (55°F).

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

January Precipitation in Porto Uniao

In Porto Uniao in January, the total precipitation amount is 143 mm (5.6 in) spread over 19 days.

January Precipitation Trends in Porto Uniao

The chart displays monthly precipitation patterns in Porto Uniao, 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 Porto Uniao, January typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 19 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 Porto Uniao

In Porto Uniao in January, humidity is 85%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel slightly stifling and requiring frequent breaks to refresh in the shade or near water.

January Average Humidity in Porto Uniao

This chart illustrates the average monthly humidity levels in Porto Uniao, 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 Porto Uniao 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 Porto Uniao

In Porto Uniao 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 Porto Uniao.

Maximum UV Index Levels in Porto Uniao for January

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

Data source: Porto Uniao 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 Porto Uniao Compares to Other Months

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

This table compares monthly weather conditions in Porto Uniao, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	143 mm (5.6 inches)	85%	extreme
February Weather	21°C (70°F)	102 mm (4.0 inches)	81%	extreme
March Weather	20°C (69°F)	99 mm (3.9 inches)	82%	extreme
April Weather	17°C (64°F)	56 mm (2.2 inches)	84%	extreme
May Weather	15°C (59°F)	82 mm (3.2 inches)	86%	high
June Weather	14°C (57°F)	95 mm (3.7 inches)	84%	high
July Weather	13°C (55°F)	25 mm (1.0 inches)	77%	high
August Weather	14°C (57°F)	75 mm (3.0 inches)	70%	very high
September Weather	18°C (64°F)	71 mm (2.8 inches)	75%	extreme
October Weather	18°C (64°F)	140 mm (5.5 inches)	76%	extreme
November Weather	19°C (67°F)	115 mm (4.5 inches)	84%	extreme
December Weather	21°C (70°F)	133 mm (5.2 inches)	88%	extreme