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December Weather in Las Piedras, Uruguay

Last updated: August 28, 2025

In December, the average temperature in Las Piedras, Uruguay hovers around 22°C (71°F), making for pleasant weather. However, be prepared for a temperature range that can dip to a cool 9°C (49°F) or soar to a scorching 35°C (95°F). Expect approximately 61 mm (2.4 in) of precipitation spread over about 6 days, with humidity levels averaging around 65%.

December Temperature in Las Piedras

In December in Las Piedras, the average temperature is 22°C (71°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 9°C (49°F). This makes Las Piedras an ideal destination for travelers looking to enjoy warm days and mild evenings.

December Weather in Las Piedras: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Las Piedras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Piedras, December typically has an average temperature of 22°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec747370665854525457616771
Data source: Temperature data for Las Piedras 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 Las Piedras

In Las Piedras in December, the total precipitation amount is 61 mm (2.4 in) spread over a period of 6 days.

December Precipitation Trends in Las Piedras

The chart displays monthly precipitation patterns in Las Piedras, 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 Las Piedras, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec70897974112881058381866661
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Las Piedras

In Las Piedras in December, humidity is 65%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making it a perfect time for leisurely strolls or exploring local attractions, though travelers should stay hydrated to fully enjoy the experience.

December Average Humidity in Las Piedras

This chart illustrates the average monthly humidity levels in Las Piedras, 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 Las Piedras is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%69%73%79%83%80%72%72%76%71%68%65%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Las Piedras

In Las Piedras 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 Las Piedras, you can check here.

Maximum UV Index Levels in Las Piedras for December

The chart shows the monthly maximum UV Index (UVI) for Las Piedras 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 Las Piedras typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753468101314
Data source: Las Piedras 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 Las Piedras Compares to Other Months

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

This table compares monthly weather conditions in Las Piedras, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)70 mm (2.8 inches)63%extreme
February Weather23°C (73°F)89 mm (3.5 inches)69%extreme
March Weather21°C (70°F)79 mm (3.1 inches)73%extreme
April Weather19°C (66°F)74 mm (2.9 inches)79%high
May Weather15°C (58°F)112 mm (4.4 inches)82%moderate
June Weather12°C (54°F)87 mm (3.4 inches)80%moderate
July Weather11°C (52°F)105 mm (4.1 inches)72%moderate
August Weather12°C (54°F)83 mm (3.3 inches)72%high
September Weather14°C (57°F)81 mm (3.2 inches)76%very high
October Weather16°C (61°F)86 mm (3.4 inches)71%very high
November Weather19°C (67°F)66 mm (2.6 inches)68%extreme
December Weather22°C (71°F)61 mm (2.4 inches)65%extreme

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