December Weather in San Luis Amatlan, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Luis Amatlan, Mexico is a pleasant 17°C (64°F). Expect a minimum of 5°C (42°F) and a maximum of 30°C (86°F), offering a comfortable range for all activities. With a low precipitation amount of 5 mm (0.2 in) over 0 days, you can enjoy mostly dry conditions. However, be prepared for the high average humidity of 88%, which might add a touch of stickiness to your day!

December Temperature in San Luis Amatlan

In December in San Luis Amatlan, the average temperature is 17°C (64°F). Maximum can reach 30°C (86°F), and the minimum can be as low as 5°C (42°F). This mild climate makes San Luis Amatlan an ideal destination for travelers seeking comfortable weather.

December Weather in San Luis Amatlan: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Luis Amatlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Luis Amatlan, December typically has an average temperature of 17°C (64°F), with highs reaching up to 30°C (86°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec636669727369686868676563
Data source: Temperature data for San Luis Amatlan 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 San Luis Amatlan

In San Luis Amatlan in December, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.

December Precipitation Trends in San Luis Amatlan

The chart displays monthly precipitation patterns in San Luis Amatlan, 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 San Luis Amatlan, December typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec1128572431532362639985
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Luis Amatlan

In San Luis Amatlan in December, humidity is 88%. With an average temperature of 17°C (64°F), this humidity feels like a warm blanket enveloping you, making travel a bit more challenging as the air feels thick and sticky, potentially sapping your energy as you explore.

December Average Humidity in San Luis Amatlan

This chart illustrates the average monthly humidity levels in San Luis Amatlan, 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 San Luis Amatlan is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Luis Amatlan

In San Luis Amatlan in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in San Luis Amatlan.

Maximum UV Index Levels in San Luis Amatlan for December

The chart shows the monthly maximum UV Index (UVI) for San Luis Amatlan 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 San Luis Amatlan typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151515151415131110
Data source: San Luis Amatlan 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 San Luis Amatlan Compares to Other Months

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

This table compares monthly weather conditions in San Luis Amatlan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (64°F)1 mm (0.0 inches)84%extreme
February Weather19°C (66°F)1 mm (0.0 inches)80%extreme
March Weather20°C (69°F)2 mm (0.1 inches)73%extreme
April Weather22°C (72°F)8 mm (0.3 inches)67%extreme
May Weather23°C (73°F)57 mm (2.2 inches)72%extreme
June Weather21°C (69°F)243 mm (9.6 inches)73%extreme
July Weather20°C (68°F)153 mm (6.0 inches)76%extreme
August Weather20°C (68°F)236 mm (9.3 inches)80%extreme
September Weather20°C (68°F)263 mm (10.4 inches)84%extreme
October Weather19°C (67°F)99 mm (3.9 inches)89%extreme
November Weather18°C (65°F)8 mm (0.3 inches)88%extreme
December Weather17°C (64°F)5 mm (0.2 inches)88%very high

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