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December Weather in Rionegro, Colombia

Last updated: August 23, 2025

In December, the average temperature in Rionegro, Colombia hovers around 18°C (65°F), offering a pleasant climate for outdoor activities. Expect lows of 12°C (54°F) and highs reaching 26°C (78°F). However, be prepared for some rain, as the month typically brings about 137 mm (5.4 in) of precipitation over 20 days. With an average humidity of 85%, the air is sure to feel quite moist, so pack accordingly!

December Temperature in Rionegro

In December in Rionegro, the average temperature is 18°C (65°F). Maximum temperatures can reach 26°C (78°F), while minimums can drop to as low as 12°C (54°F). This mild climate makes Rionegro a great destination for travelers seeking pleasant weather conditions.

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

The chart illustrates December temperature patterns in Rionegro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rionegro, December typically has an average temperature of 18°C (65°F), with highs reaching up to 26°C (78°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec646565656666676766656565
Data source: Temperature data for Rionegro 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 Rionegro

In Rionegro in December, the total precipitation amount reaches 137 mm (5.4 in) over the course of 20 days.

December Precipitation Trends in Rionegro

The chart displays monthly precipitation patterns in Rionegro, 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 Rionegro, December typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec951482802902691126192170279341137
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rionegro

In Rionegro in December humidity is 85%. With an average temperature of 18°C (65°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities challenging but creating a lush, vibrant atmosphere that invites exploration.

December Average Humidity in Rionegro

This chart illustrates the average monthly humidity levels in Rionegro, 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 Rionegro is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%68%65%73%88%89%89%87%88%89%90%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rionegro

In Rionegro in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Rionegro.

Maximum UV Index Levels in Rionegro for December

The chart shows the monthly maximum UV Index (UVI) for Rionegro 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 Rionegro typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516171614141514141312
Data source: Rionegro 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 Rionegro Compares to Other Months

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

This table compares monthly weather conditions in Rionegro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)95 mm (3.7 inches)74%extreme
February Weather18°C (65°F)148 mm (5.8 inches)68%extreme
March Weather18°C (65°F)280 mm (11.0 inches)65%extreme
April Weather19°C (66°F)290 mm (11.4 inches)73%extreme
May Weather19°C (66°F)269 mm (10.6 inches)88%extreme
June Weather19°C (66°F)112 mm (4.4 inches)89%extreme
July Weather19°C (67°F)61 mm (2.4 inches)89%extreme
August Weather19°C (67°F)92 mm (3.6 inches)87%extreme
September Weather19°C (66°F)170 mm (6.7 inches)88%extreme
October Weather18°C (65°F)279 mm (11.0 inches)89%extreme
November Weather18°C (65°F)341 mm (13.4 inches)90%extreme
December Weather18°C (65°F)137 mm (5.4 inches)85%extreme

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