January Weather in Altamira, Brazil

Last updated: August 22, 2025

In January, the average temperature in Altamira, Brazil is a warm 26°C (79°F), with minimums dipping to 21°C (71°F) and maximums rising to 33°C (91°F). Expect ample precipitation, totaling 223 mm (8.8 in) over 24 days, and prepare for a high humidity level of approximately 85%.

January Temperature in Altamira

In January in Altamira, the average temperature is 26°C (79°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 21°C (71°F). This comfortable weather makes Altamira an ideal destination for travelers seeking pleasant conditions and outdoor activities.

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

The chart illustrates January temperature patterns in Altamira, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altamira, January typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (91°F) and lows dropping to around 21°C (71°F).

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

January Precipitation in Altamira

In Altamira in January, the total precipitation amount is 223 mm (8.8 in) recorded over a span of 24 days.

January Precipitation Trends in Altamira

The chart displays monthly precipitation patterns in Altamira, 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 Altamira, January typically receives around 223 mm (8.8 inches) of precipitation spread over approximately 24 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 Altamira

In Altamira in January, humidity is 85%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities feel stifling and exhausting for travelers.

January Average Humidity in Altamira

This chart illustrates the average monthly humidity levels in Altamira, 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 Altamira 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 Altamira

In Altamira 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 Altamira.

Maximum UV Index Levels in Altamira for January

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

Data source: Altamira 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 Altamira Compares to Other Months

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

This table compares monthly weather conditions in Altamira, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	223 mm (8.8 inches)	85%	extreme
February Weather	26°C (79°F)	271 mm (10.7 inches)	69%	extreme
March Weather	26°C (79°F)	281 mm (11.1 inches)	70%	extreme
April Weather	26°C (79°F)	293 mm (11.5 inches)	85%	extreme
May Weather	26°C (80°F)	175 mm (6.9 inches)	90%	extreme
June Weather	27°C (80°F)	62 mm (2.5 inches)	82%	extreme
July Weather	27°C (81°F)	34 mm (1.3 inches)	66%	extreme
August Weather	28°C (83°F)	36 mm (1.4 inches)	51%	extreme
September Weather	28°C (83°F)	34 mm (1.3 inches)	47%	extreme
October Weather	28°C (84°F)	41 mm (1.6 inches)	46%	extreme
November Weather	28°C (82°F)	134 mm (5.3 inches)	46%	extreme
December Weather	27°C (80°F)	202 mm (8.0 inches)	70%	extreme