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December Weather in Guacui, Brazil

Last updated: August 22, 2025

In Guacui, Brazil, the average temperature in December is a pleasant 23°C (73°F), with minimums dipping to 12°C (54°F) and maximums reaching a warm 31°C (89°F). During this time, expect 239 mm (9.4 in) of precipitation over 21 days, resulting in an average humidity of 72%. Get ready for a month of comfortable warmth mixed with refreshing rain!

December Temperature in Guacui

In December in Guacui, the average temperature is 23°C (73°F), with maximums reaching 31°C (89°F) and minimums dropping as low as 12°C (54°F). This pleasant climate makes it an ideal time for outdoor activities and sightseeing.

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

The chart illustrates December temperature patterns in Guacui, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guacui, December typically has an average temperature of 23°C (73°F), with highs reaching up to 31°C (89°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec757473706665636469717073
Data source: Temperature data for Guacui 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 Guacui

In Guacui in December, the precipitation amount is 239 mm (9.4 in) over a period of 21 days.

December Precipitation Trends in Guacui

The chart displays monthly precipitation patterns in Guacui, 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 Guacui, December typically receives around 239 mm (9.4 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1252531731035827173549141200239
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Guacui

In Guacui in December, humidity is 72%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel exhilarating yet slightly sticky, as the air clings to your skin and invites you to seek out cool, refreshing places to explore.

December Average Humidity in Guacui

This chart illustrates the average monthly humidity levels in Guacui, 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 Guacui is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%85%86%85%82%81%79%75%72%67%69%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Guacui

In Guacui 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 Guacui.

Maximum UV Index Levels in Guacui for December

The chart shows the monthly maximum UV Index (UVI) for Guacui 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 Guacui typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161514129781012141515
Data source: Guacui 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 Guacui Compares to Other Months

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

This table compares monthly weather conditions in Guacui, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)125 mm (4.9 inches)80%extreme
February Weather23°C (74°F)253 mm (9.9 inches)85%extreme
March Weather23°C (73°F)173 mm (6.8 inches)86%extreme
April Weather21°C (70°F)103 mm (4.1 inches)85%extreme
May Weather19°C (67°F)58 mm (2.3 inches)82%very high
June Weather19°C (66°F)27 mm (1.1 inches)81%high
July Weather17°C (64°F)17 mm (0.7 inches)79%very high
August Weather18°C (64°F)35 mm (1.4 inches)75%very high
September Weather21°C (70°F)49 mm (1.9 inches)72%extreme
October Weather21°C (71°F)141 mm (5.5 inches)66%extreme
November Weather21°C (70°F)200 mm (7.9 inches)69%extreme
December Weather23°C (73°F)239 mm (9.4 inches)72%extreme

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