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December Weather in Loreto, Argentina

Last updated: August 22, 2025

In Loreto, Argentina, the average temperature in December is a warm 27°C (80°F). You can expect a range from a cool 13°C (56°F) to a scorching 40°C (105°F). During this month, precipitation averages 95 mm (3.7 in) over 7 days, contributing to an average humidity level of 84%.

December Temperature in Loreto

In December in Loreto, the average temperature is 27°C (80°F). Maximum can reach 40°C (105°F) and minimum can be as low as 13°C (56°F). Be sure to pack both light clothing for the heat and warmer layers for the cooler evenings when traveling.

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

The chart illustrates December temperature patterns in Loreto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Loreto, December typically has an average temperature of 27°C (80°F), with highs reaching up to 40°C (105°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec828177726562606468737780
Data source: Temperature data for Loreto 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 Loreto

In Loreto in December, the precipitation amount is 95 mm (3.7 in) over the course of 7 days.

December Precipitation Trends in Loreto

The chart displays monthly precipitation patterns in Loreto, 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 Loreto, December typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec1507014313515591635810111614695
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Loreto

In Loreto in December, humidity is 84%. With an average temperature of 27°C (80°F), this humidity feels like a thick, warm blanket enveloping you, making travel feel sluggish and exhausting.

December Average Humidity in Loreto

This chart illustrates the average monthly humidity levels in Loreto, 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 Loreto is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%71%74%82%82%73%67%49%54%58%69%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Loreto

In Loreto in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Loreto, you can check here.

Maximum UV Index Levels in Loreto for December

The chart shows the monthly maximum UV Index (UVI) for Loreto 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 Loreto typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15131210656710131414
Data source: Loreto 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 Loreto Compares to Other Months

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

This table compares monthly weather conditions in Loreto, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)150 mm (5.9 inches)77%extreme
February Weather27°C (81°F)69 mm (2.7 inches)71%extreme
March Weather25°C (77°F)143 mm (5.6 inches)74%extreme
April Weather22°C (72°F)135 mm (5.3 inches)82%very high
May Weather18°C (65°F)155 mm (6.1 inches)82%high
June Weather17°C (62°F)91 mm (3.6 inches)73%moderate
July Weather16°C (61°F)62 mm (2.5 inches)67%high
August Weather18°C (64°F)58 mm (2.3 inches)49%high
September Weather20°C (69°F)101 mm (4.0 inches)54%very high
October Weather23°C (73°F)116 mm (4.6 inches)58%extreme
November Weather25°C (77°F)146 mm (5.7 inches)69%extreme
December Weather27°C (80°F)95 mm (3.7 inches)84%extreme

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