nomadseason

December Weather in Arroyo Seco, Argentina

Last updated: August 22, 2025

In December, the average temperature in Arroyo Seco, Argentina hovers around 24°C (75°F), making it a pleasant time to visit. However, temperatures can vary significantly, with minimums dropping to 10°C (50°F) and highs soaring up to 39°C (102°F). Be prepared for some rain, as average precipitation reaches 73 mm (2.9 in) over approximately 7 days, and expect an average humidity of 51%.

December Temperature in Arroyo Seco

In December in Arroyo Seco, the average temperature is 24°C (75°F), with maximums reaching up to 39°C (102°F) and minimums dropping as low as 10°C (50°F). This wide temperature range makes it essential for travelers to pack accordingly, preparing for both warm days and cooler nights.

December Weather in Arroyo Seco: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Arroyo Seco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroyo Seco, December typically has an average temperature of 24°C (75°F), with highs reaching up to 39°C (102°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec777571665853515560647175
Data source: Temperature data for Arroyo Seco 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 Arroyo Seco

In Arroyo Seco in December, the precipitation amount is 73 mm (2.9 in) during a span of 7 days.

December Precipitation Trends in Arroyo Seco

The chart displays monthly precipitation patterns in Arroyo Seco, 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 Arroyo Seco, December typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec10874911277028303766677473
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Arroyo Seco

In Arroyo Seco in December humidity is 51%. With an average temperature of 24°C (75°F), this humidity feels like a pleasantly warm embrace, making it ideal for leisurely strolls and outdoor exploration without overwhelming discomfort.

December Average Humidity in Arroyo Seco

This chart illustrates the average monthly humidity levels in Arroyo Seco, 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 Arroyo Seco is approximately 51%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec48%55%64%76%82%77%62%59%62%52%56%51%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Arroyo Seco

In Arroyo Seco 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 Arroyo Seco, you can check here.

Maximum UV Index Levels in Arroyo Seco for December

The chart shows the monthly maximum UV Index (UVI) for Arroyo Seco 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 Arroyo Seco typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311854468111314
Data source: Arroyo Seco 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 Arroyo Seco Compares to Other Months

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

This table compares monthly weather conditions in Arroyo Seco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)108 mm (4.3 inches)48%extreme
February Weather24°C (75°F)74 mm (2.9 inches)55%extreme
March Weather21°C (71°F)91 mm (3.6 inches)64%extreme
April Weather19°C (66°F)127 mm (5.0 inches)76%very high
May Weather14°C (58°F)70 mm (2.8 inches)82%moderate
June Weather12°C (53°F)28 mm (1.1 inches)77%moderate
July Weather11°C (52°F)30 mm (1.2 inches)62%moderate
August Weather13°C (55°F)37 mm (1.5 inches)59%high
September Weather15°C (60°F)66 mm (2.6 inches)62%very high
October Weather18°C (64°F)67 mm (2.6 inches)52%extreme
November Weather22°C (71°F)74 mm (2.9 inches)56%extreme
December Weather24°C (75°F)73 mm (2.9 inches)51%extreme

Compare Arroyo Seco's Climate with Cities Worldwide