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December Weather in Jaru, Brazil

Last updated: August 22, 2025

In Jaru, Brazil, the average temperature in December hovers around 25°C (78°F). Expect a comfortable minimum of 21°C (71°F) and a warm maximum reaching 34°C (94°F). With an average humidity of 86%, prepare for a tropical feel. Note that precipitation is significant, with 299 mm (11.8 in) expected over 28 days.

December Temperature in Jaru

In December in Jaru, the average temperature is 25°C (78°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 21°C (71°F). This pleasant climate makes it an ideal destination for travelers seeking warmth and sunshine.

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

The chart illustrates December temperature patterns in Jaru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaru, December typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (94°F) and lows dropping to around 21°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec787778787777798182807978
Data source: Temperature data for Jaru 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 Jaru

In Jaru in December, the total precipitation amount is 299 mm (11.8 in) over the course of 28 days.

December Precipitation Trends in Jaru

The chart displays monthly precipitation patterns in Jaru, 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 Jaru, December typically receives around 299 mm (11.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec207294242171781211959122222299
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Jaru

In Jaru in December, humidity is 86%. With an average temperature of 25°C (78°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities challenging and potentially uncomfortable for traveling.

December Average Humidity in Jaru

This chart illustrates the average monthly humidity levels in Jaru, 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 Jaru is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%88%89%84%71%48%36%30%37%70%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Jaru

In Jaru in December, 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 Jaru.

Maximum UV Index Levels in Jaru for December

The chart shows the monthly maximum UV Index (UVI) for Jaru 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 Jaru typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151110101113151515
Data source: Jaru 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 Jaru Compares to Other Months

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

This table compares monthly weather conditions in Jaru, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)207 mm (8.2 inches)88%extreme
February Weather25°C (78°F)294 mm (11.6 inches)87%extreme
March Weather25°C (78°F)242 mm (9.5 inches)88%extreme
April Weather26°C (78°F)171 mm (6.7 inches)89%extreme
May Weather25°C (78°F)78 mm (3.1 inches)84%extreme
June Weather25°C (78°F)12 mm (0.5 inches)70%very high
July Weather26°C (79°F)1 mm (0.0 inches)48%very high
August Weather27°C (81°F)19 mm (0.8 inches)36%extreme
September Weather28°C (82°F)59 mm (2.3 inches)30%extreme
October Weather27°C (80°F)122 mm (4.8 inches)37%extreme
November Weather26°C (79°F)222 mm (8.8 inches)69%extreme
December Weather25°C (78°F)299 mm (11.8 inches)86%extreme

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