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December Weather in Valparaiso, Mexico

Last updated: August 27, 2025

In Valparaiso, Mexico, the average temperature for December hovers around 11°C (53°F), creating a mild atmosphere. Expect a minimum chill of -5°C (23°F) and a peak warmth reaching 25°C (77°F). The month sees a precipitation total of 15 mm (0.6 in) over just 2 days, while the air remains comfortably humid with an average humidity of 83%.

December Temperature in Valparaiso

In December in Valparaiso, the average temperature is 11°C (53°F). The maximum can reach 25°C (77°F) and the minimum can be as low as -5°C (23°F). Visitors should be prepared for a wide range of temperatures and pack accordingly for both warmth and cooler weather.

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

The chart illustrates December temperature patterns in Valparaiso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valparaiso, December typically has an average temperature of 11°C (53°F), with highs reaching up to 25°C (77°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec525561646768636462615752
Data source: Temperature data for Valparaiso 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 Valparaiso

In Valparaiso in December, the precipitation amount is 15 mm (0.6 in) over the course of 2 days.

December Precipitation Trends in Valparaiso

The chart displays monthly precipitation patterns in Valparaiso, 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 Valparaiso, December typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec20199324126293172238822116
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Valparaiso

In Valparaiso in December, humidity is 83%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and causing an inevitable sheen of sweat to form, which can dampen the joy of exploring your surroundings.

December Average Humidity in Valparaiso

This chart illustrates the average monthly humidity levels in Valparaiso, 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 Valparaiso is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%64%49%47%55%77%82%83%86%83%80%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Valparaiso

In Valparaiso in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Valparaiso.

Maximum UV Index Levels in Valparaiso for December

The chart shows the monthly maximum UV Index (UVI) for Valparaiso 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 Valparaiso typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec8111315151414141412108
Data source: Valparaiso 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 Valparaiso Compares to Other Months

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

This table compares monthly weather conditions in Valparaiso, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)20 mm (0.8 inches)71%very high
February Weather13°C (55°F)19 mm (0.7 inches)64%extreme
March Weather16°C (61°F)9 mm (0.3 inches)49%extreme
April Weather18°C (64°F)3 mm (0.1 inches)47%extreme
May Weather20°C (67°F)24 mm (0.9 inches)55%extreme
June Weather20°C (68°F)126 mm (5.0 inches)77%extreme
July Weather17°C (64°F)293 mm (11.5 inches)82%extreme
August Weather18°C (64°F)172 mm (6.8 inches)83%extreme
September Weather17°C (63°F)238 mm (9.4 inches)86%extreme
October Weather16°C (61°F)82 mm (3.2 inches)83%extreme
November Weather14°C (57°F)21 mm (0.8 inches)80%very high
December Weather11°C (53°F)15 mm (0.6 inches)83%very high

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