nomadseason

December Weather in Rio Hondo, United States

Last updated: June 24, 2025

In Rio Hondo, United States, the average temperature in December hovers around 18°C (65°F), making it a pleasant time to visit. However, be prepared for a minimum temperature of 1°C (34°F) and the occasional high of 32°C (91°F). During this month, you can expect around 28 mm (1.1 in) of precipitation spread over 5 days, and the air tends to be quite humid, with an average humidity of 86%.

December Temperature in Rio Hondo

In December in Rio Hondo, the average temperature is 18°C (65°F). Maximums can reach 32°C (91°F) and minimums can be as low as 1°C (34°F). It's a great time for travelers to enjoy mild weather and pack for both warm days and cooler evenings.

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

The chart illustrates December temperature patterns in Rio Hondo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Hondo, December typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (91°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec626471768184858683776965
Data source: Temperature data for Rio Hondo generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Rio Hondo

In Rio Hondo in December, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

December Precipitation Trends in Rio Hondo

The chart displays monthly precipitation patterns in Rio Hondo, 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 Hondo, December typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec31214029808710029104643228
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Rio Hondo

In Rio Hondo in December humidity is 86%. With an average temperature of 18°C (65°F), this humidity feels like you’re wrapped in a warm, heavy blanket, making outdoor activities feel quite muggy and sticky for traveling.

December Average Humidity in Rio Hondo

This chart illustrates the average monthly humidity levels in Rio Hondo, 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 Hondo 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 Hondo

In Rio Hondo in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Rio Hondo, you can refer to this Hourly UV Index in Rio Hondo.

Maximum UV Index Levels in Rio Hondo for December

The chart shows the monthly maximum UV Index (UVI) for Rio Hondo 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 Hondo typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101112121212111076
Data source: Rio Hondo 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 Hondo Compares to Other Months

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

This table compares monthly weather conditions in Rio Hondo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (62°F)31 mm (1.2 inches)83%high
February Weather18°C (65°F)21 mm (0.8 inches)79%very high
March Weather22°C (71°F)40 mm (1.6 inches)76%very high
April Weather24°C (76°F)29 mm (1.2 inches)77%extreme
May Weather27°C (81°F)80 mm (3.1 inches)80%extreme
June Weather29°C (84°F)86 mm (3.4 inches)73%extreme
July Weather29°C (85°F)100 mm (3.9 inches)66%extreme
August Weather30°C (86°F)29 mm (1.2 inches)65%extreme
September Weather28°C (83°F)104 mm (4.1 inches)73%extreme
October Weather25°C (77°F)64 mm (2.5 inches)76%very high
November Weather21°C (70°F)32 mm (1.3 inches)80%high
December Weather18°C (65°F)28 mm (1.1 inches)86%high

Compare Rio Hondo's Climate with Cities Worldwide