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December Weather in Santa Isabel do Rio Negro, Brazil

Last updated: August 22, 2025

In December, the average temperature in Santa Isabel do Rio Negro, Brazil is a warm 26°C (80°F), with a minimum of 23°C (74°F) and a maximum reaching 34°C (93°F). You can expect 290 mm (11.4 in) of precipitation spread over 27 days, contributing to an average humidity of 84%.

December Temperature in Santa Isabel do Rio Negro

In December in Santa Isabel do Rio Negro, the average temperature is 26°C (80°F). Maximum can reach 34°C (93°F) and minimum can be as low as 23°C (74°F). This makes it a perfect time for travelers to enjoy warm weather and outdoor activities.

December Weather in Santa Isabel do Rio Negro: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santa Isabel do Rio Negro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Isabel do Rio Negro, December typically has an average temperature of 26°C (80°F), with highs reaching up to 34°C (93°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec808180797978788081818080
Data source: Temperature data for Santa Isabel do Rio Negro 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 Santa Isabel do Rio Negro

In Santa Isabel do Rio Negro in December, the total precipitation amount is 290 mm (11.4 in) spread over 27 days.

December Precipitation Trends in Santa Isabel do Rio Negro

The chart displays monthly precipitation patterns in Santa Isabel do Rio Negro, 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 Santa Isabel do Rio Negro, December typically receives around 290 mm (11.4 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec202192312330422289238167166165221290
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Isabel do Rio Negro

In Santa Isabel do Rio Negro in December, humidity is 84%. With an average temperature of 26°C (80°F), this humidity feels like a warm blanket enveloping you, making travel feel sticky and intense, often leaving you longing for a cool breeze or a shaded spot to escape the heat.

December Average Humidity in Santa Isabel do Rio Negro

This chart illustrates the average monthly humidity levels in Santa Isabel do Rio Negro, 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 Santa Isabel do Rio Negro is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%57%63%76%90%87%78%54%38%36%54%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Isabel do Rio Negro

In Santa Isabel do Rio Negro in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Santa Isabel do Rio Negro.

Maximum UV Index Levels in Santa Isabel do Rio Negro for December

The chart shows the monthly maximum UV Index (UVI) for Santa Isabel do Rio Negro 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 Santa Isabel do Rio Negro typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516161412111214141313
Data source: Santa Isabel do Rio Negro 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 Santa Isabel do Rio Negro Compares to Other Months

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

This table compares monthly weather conditions in Santa Isabel do Rio Negro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)202 mm (7.9 inches)77%extreme
February Weather27°C (81°F)192 mm (7.6 inches)57%extreme
March Weather27°C (80°F)312 mm (12.3 inches)63%extreme
April Weather26°C (79°F)330 mm (13.0 inches)76%extreme
May Weather26°C (79°F)422 mm (16.6 inches)90%extreme
June Weather26°C (79°F)289 mm (11.4 inches)87%extreme
July Weather26°C (78°F)238 mm (9.4 inches)78%extreme
August Weather26°C (80°F)167 mm (6.6 inches)54%extreme
September Weather27°C (81°F)166 mm (6.6 inches)38%extreme
October Weather27°C (81°F)165 mm (6.5 inches)36%extreme
November Weather27°C (81°F)221 mm (8.7 inches)54%extreme
December Weather26°C (80°F)290 mm (11.4 inches)84%extreme

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