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December Weather in Rio Bravo, United States

Last updated: June 24, 2025

In Rio Bravo, United States, the average temperature in December is a comfortable 17°C (63°F). However, be prepared for a range, as temperatures can dip to a chilly 1°C (34°F) or soar to a warm 36°C (97°F). Expect 19 mm (0.7 in) of precipitation spread across 2 days during the month, coupled with an average humidity level of 86%.

December Temperature in Rio Bravo

In December in Rio Bravo, the average temperature is 17°C (63°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 1°C (34°F). This variability in temperature makes it essential to pack accordingly for a comfortable travel experience.

December Weather in Rio Bravo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rio Bravo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Bravo, December typically has an average temperature of 17°C (63°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec596472778387899085776862
Data source: Temperature data for Rio Bravo 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 Rio Bravo

In Rio Bravo in December, the precipitation amount is 19 mm (0.7 in) over a span of 2 days.

December Precipitation Trends in Rio Bravo

The chart displays monthly precipitation patterns in Rio Bravo, 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 Rio Bravo, December typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec171532458242542592422319
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rio Bravo

In Rio Bravo in December humidity is 86%. With an average temperature of 17°C (63°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and slightly stifling for traveling, as every step requires more effort and even a gentle breeze feels refreshing amidst the muggy atmosphere.

December Average Humidity in Rio Bravo

This chart illustrates the average monthly humidity levels in Rio Bravo, 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 Rio Bravo is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%79%76%77%80%73%66%65%73%76%80%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rio Bravo

In Rio Bravo in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Rio Bravo.

Maximum UV Index Levels in Rio Bravo for December

The chart shows the monthly maximum UV Index (UVI) for Rio Bravo 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 Rio Bravo typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810111212121211975
Data source: Rio Bravo 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 Rio Bravo Compares to Other Months

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

This table compares monthly weather conditions in Rio Bravo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (60°F)17 mm (0.7 inches)83%high
February Weather18°C (64°F)15 mm (0.6 inches)79%very high
March Weather22°C (73°F)32 mm (1.3 inches)76%very high
April Weather25°C (78°F)45 mm (1.8 inches)77%extreme
May Weather29°C (84°F)82 mm (3.2 inches)80%extreme
June Weather31°C (88°F)42 mm (1.6 inches)73%extreme
July Weather32°C (89°F)54 mm (2.1 inches)66%extreme
August Weather32°C (90°F)25 mm (1.0 inches)65%extreme
September Weather29°C (85°F)92 mm (3.6 inches)73%extreme
October Weather25°C (77°F)42 mm (1.7 inches)76%very high
November Weather20°C (68°F)23 mm (0.9 inches)80%high
December Weather17°C (63°F)19 mm (0.7 inches)86%moderate

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