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December Weather in Tonantins, Brazil

Last updated: August 22, 2025

In December, the average temperature in Tonantins, Brazil hovers around 26°C (79°F), with lows reaching 22°C (72°F) and highs peaking at 34°C (94°F). Expect substantial precipitation of 328 mm (12.9 in) over the course of 30 days, coupled with a high average humidity of 87%. Perfect for those who enjoy a warm, tropical climate!

December Temperature in Tonantins

In December in Tonantins, the average temperature is 26°C (79°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 22°C (72°F). This mild and warm climate makes Tonantins an ideal destination for travelers seeking pleasant weather.

December Weather in Tonantins: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Tonantins, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tonantins, December typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979797878787980808079
Data source: Temperature data for Tonantins generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Tonantins

In Tonantins in December, the total precipitation amount is 328 mm (12.9 in) spread over a duration of 30 days.

December Precipitation Trends in Tonantins

The chart displays monthly precipitation patterns in Tonantins, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Tonantins, December typically receives around 328 mm (12.9 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec286282340344322206158107131198252328
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tonantins

In Tonantins in December, humidity is 87%. With an average temperature of 26°C (79°F), this humidity feels like walking through a warm, thick blanket, making it essential to stay hydrated and take frequent breaks while exploring.

December Average Humidity in Tonantins

This chart illustrates the average monthly humidity levels in Tonantins, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Tonantins is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%76%86%90%85%71%48%38%43%66%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tonantins

In Tonantins in December, 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 Tonantins, you can check here.

Maximum UV Index Levels in Tonantins for December

The chart shows the monthly maximum UV Index (UVI) for Tonantins in December, 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 December, the maximum UV index in Tonantins typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161312111213141314
Data source: Tonantins December 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 December Weather in Tonantins Compares to Other Months

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

This table compares monthly weather conditions in Tonantins, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)286 mm (11.3 inches)83%extreme
February Weather26°C (79°F)282 mm (11.1 inches)74%extreme
March Weather26°C (79°F)340 mm (13.4 inches)76%extreme
April Weather26°C (79°F)344 mm (13.5 inches)86%extreme
May Weather26°C (78°F)322 mm (12.7 inches)90%extreme
June Weather25°C (78°F)206 mm (8.1 inches)85%extreme
July Weather25°C (78°F)158 mm (6.2 inches)71%extreme
August Weather26°C (79°F)107 mm (4.2 inches)48%extreme
September Weather27°C (80°F)131 mm (5.1 inches)38%extreme
October Weather27°C (80°F)198 mm (7.8 inches)43%extreme
November Weather26°C (80°F)252 mm (9.9 inches)66%extreme
December Weather26°C (79°F)328 mm (12.9 inches)87%extreme

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