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December Weather in Janauba, Brazil

Last updated: August 22, 2025

In Janauba, Brazil, the average temperature in December hovers around 26°C (79°F). Expect a comfortable range with minimum temperatures dipping to 17°C (63°F) and maximums soaring up to 38°C (100°F). It's a rather wet month too, with 186 mm (7.3 in) of precipitation spread over 15 days, and an average humidity of 51%. So, come prepared for warm and occasionally rainy weather!

December Temperature in Janauba

In December in Janauba, the average temperature is 26°C (79°F). The maximum can reach 38°C (100°F) and the minimum can be as low as 17°C (63°F). This makes it an ideal time for travelers to enjoy warm weather while being prepared for hotter days and cooler evenings.

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

The chart illustrates December temperature patterns in Janauba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Janauba, December typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (100°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec817979787675737680837979
Data source: Temperature data for Janauba 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 Janauba

In Janauba in December, the total precipitation amount is 186 mm (7.3 in), occurring over a period of 15 days.

December Precipitation Trends in Janauba

The chart displays monthly precipitation patterns in Janauba, 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 Janauba, December typically receives around 186 mm (7.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec5612996368111358143187
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Janauba

In Janauba in December humidity is 51%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making it pleasantly comfortable for traveling and exploring.

December Average Humidity in Janauba

This chart illustrates the average monthly humidity levels in Janauba, 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 Janauba is approximately 51%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%83%88%81%72%71%66%61%54%46%42%51%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Janauba

In Janauba in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Janauba.

Maximum UV Index Levels in Janauba for December

The chart shows the monthly maximum UV Index (UVI) for Janauba 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 Janauba typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151413119101212141516
Data source: Janauba 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 Janauba Compares to Other Months

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

This table compares monthly weather conditions in Janauba, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)56 mm (2.2 inches)75%extreme
February Weather26°C (79°F)129 mm (5.1 inches)83%extreme
March Weather26°C (80°F)96 mm (3.8 inches)88%extreme
April Weather26°C (79°F)36 mm (1.4 inches)81%extreme
May Weather24°C (76°F)8 mm (0.3 inches)72%extreme
June Weather24°C (75°F)1 mm (0.0 inches)71%very high
July Weather23°C (73°F)1 mm (0.0 inches)66%very high
August Weather24°C (76°F)1 mm (0.0 inches)61%extreme
September Weather27°C (80°F)3 mm (0.1 inches)54%extreme
October Weather28°C (83°F)58 mm (2.3 inches)46%extreme
November Weather26°C (79°F)143 mm (5.6 inches)42%extreme
December Weather26°C (79°F)186 mm (7.3 inches)51%extreme

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