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December Weather in Lucas, Brazil

Last updated: August 22, 2025

In December, the average temperature in Lucas, Brazil hovers around 28°C (83°F), with lows dipping to 22°C (71°F) and highs soaring up to 37°C (99°F). Be prepared for a substantial amount of precipitation—about 201 mm (7.9 in)—spanning 21 days. With an average humidity of 85%, make sure to stay hydrated and embrace the tropical vibes!

December Temperature in Lucas

In December in Lucas, the average temperature is 28°C (83°F), with maximums soaring to 37°C (99°F) and minimums dipping as low as 22°C (71°F). This warm weather makes Lucas an ideal destination for travelers seeking sunny adventures and outdoor activities.

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

The chart illustrates December temperature patterns in Lucas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lucas, December typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec828282817877768086858382
Data source: Temperature data for Lucas 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 Lucas

In Lucas in December, the precipitation amount is 201 mm (7.9 in) spread across 21 days.

December Precipitation Trends in Lucas

The chart displays monthly precipitation patterns in Lucas, 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 Lucas, December typically receives around 201 mm (7.9 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec161220152893631112284208201
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lucas

In Lucas in December humidity is 85%. With an average temperature of 28°C (83°F), this humidity feels like an enveloping blanket, making traveling quite sticky and exhausting, as the air thickens and makes every movement feel laborious.

December Average Humidity in Lucas

This chart illustrates the average monthly humidity levels in Lucas, 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 Lucas is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%88%87%83%73%58%46%37%36%67%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lucas

In Lucas 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 Lucas.

Maximum UV Index Levels in Lucas for December

The chart shows the monthly maximum UV Index (UVI) for Lucas 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 Lucas typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1516141310891111141516
Data source: Lucas 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 Lucas Compares to Other Months

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

This table compares monthly weather conditions in Lucas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)161 mm (6.3 inches)88%extreme
February Weather28°C (82°F)220 mm (8.7 inches)87%extreme
March Weather28°C (82°F)152 mm (6.0 inches)88%extreme
April Weather27°C (82°F)89 mm (3.5 inches)87%extreme
May Weather25°C (78°F)36 mm (1.4 inches)83%very high
June Weather25°C (77°F)3 mm (0.1 inches)73%very high
July Weather24°C (76°F)1 mm (0.0 inches)58%very high
August Weather27°C (81°F)11 mm (0.4 inches)46%extreme
September Weather30°C (86°F)22 mm (0.8 inches)37%extreme
October Weather30°C (85°F)84 mm (3.3 inches)36%extreme
November Weather28°C (83°F)208 mm (8.2 inches)67%extreme
December Weather28°C (83°F)201 mm (7.9 inches)85%extreme

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