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December Weather in Rosario de Mora, El Salvador

Last updated: August 23, 2025

In Rosario de Mora, El Salvador, the average temperature in December hovers around 26°C (79°F), with minimums dipping to 20°C (68°F) and maximums peaking at 32°C (89°F). Expect a light sprinkling of precipitation, averaging 7 mm (0.3 in) over just 1 day, while the average humidity settles at a comfortable 66%.

December Temperature in Rosario de Mora

In December in Rosario de Mora, the average temperature is 26°C (79°F). The maximum can reach 32°C (89°F), while the minimum can drop to as low as 20°C (68°F). This pleasant climate makes Rosario de Mora an ideal destination for travelers seeking comfortable and enjoyable weather.

December Weather in Rosario de Mora: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rosario de Mora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosario de Mora, December typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (89°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec787980808079808079787979
Data source: Temperature data for Rosario de Mora 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 Rosario de Mora

In Rosario de Mora in December, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

December Precipitation Trends in Rosario de Mora

The chart displays monthly precipitation patterns in Rosario de Mora, 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 Rosario de Mora, December typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec33752275294163274298333677
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rosario de Mora

In Rosario de Mora in December, humidity is 66%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making outdoor activities invigorating yet requiring occasional breaks in the shade to stay comfortable while traveling.

December Average Humidity in Rosario de Mora

This chart illustrates the average monthly humidity levels in Rosario de Mora, 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 Rosario de Mora is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%62%59%59%59%68%78%79%77%77%75%67%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rosario de Mora

In Rosario de Mora in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Rosario de Mora.

Maximum UV Index Levels in Rosario de Mora for December

The chart shows the monthly maximum UV Index (UVI) for Rosario de Mora 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 Rosario de Mora typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131313109
Data source: Rosario de Mora 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 Rosario de Mora Compares to Other Months

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

This table compares monthly weather conditions in Rosario de Mora, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)3 mm (0.1 inches)63%extreme
February Weather26°C (79°F)3 mm (0.1 inches)62%extreme
March Weather27°C (81°F)7 mm (0.3 inches)59%extreme
April Weather27°C (81°F)52 mm (2.0 inches)59%extreme
May Weather26°C (80°F)275 mm (10.8 inches)59%extreme
June Weather26°C (79°F)294 mm (11.6 inches)68%extreme
July Weather27°C (81°F)162 mm (6.4 inches)77%extreme
August Weather26°C (80°F)274 mm (10.8 inches)79%extreme
September Weather26°C (79°F)298 mm (11.7 inches)77%extreme
October Weather26°C (78°F)333 mm (13.1 inches)77%extreme
November Weather26°C (79°F)67 mm (2.6 inches)75%very high
December Weather26°C (79°F)7 mm (0.3 inches)66%very high

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