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December Weather in San Ignacio, Mexico

Last updated: August 27, 2025

In San Ignacio, Mexico, the average temperature in December is a pleasant 20°C (68°F), with daily fluctuations ranging from a minimum of 7°C (45°F) to a maximum of 33°C (91°F). Expect an average precipitation of 17 mm (0.7 in) over the course of 1 day, accompanied by a comfortable average humidity level of 78%.

December Temperature in San Ignacio

In December in San Ignacio, the average temperature is 20°C (68°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 7°C (45°F). This pleasant climate makes San Ignacio an ideal destination for travel during this time.

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

The chart illustrates December temperature patterns in San Ignacio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Ignacio, December typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec666872757981818079787367
Data source: Temperature data for San Ignacio 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 Ignacio

In San Ignacio in December, the precipitation amount is 17 mm (0.7 in) over the course of 1 day.

December Precipitation Trends in San Ignacio

The chart displays monthly precipitation patterns in San Ignacio, 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 Ignacio, December typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec102910141151241176772017
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Ignacio

In San Ignacio in December humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

December Average Humidity in San Ignacio

This chart illustrates the average monthly humidity levels in San Ignacio, 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 Ignacio is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%66%61%56%61%73%82%83%83%79%77%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Ignacio

In San Ignacio in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Ignacio, you can refer to this Hourly UV Index in San Ignacio.

Maximum UV Index Levels in San Ignacio for December

The chart shows the monthly maximum UV Index (UVI) for San Ignacio 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 Ignacio typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111313121212121186
Data source: San Ignacio 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 Ignacio Compares to Other Months

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

This table compares monthly weather conditions in San Ignacio, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)10 mm (0.4 inches)74%high
February Weather20°C (68°F)29 mm (1.1 inches)66%very high
March Weather22°C (72°F)1 mm (0.0 inches)61%extreme
April Weather24°C (75°F)0 mm (0.0 inches)56%extreme
May Weather26°C (79°F)1 mm (0.0 inches)61%extreme
June Weather27°C (82°F)41 mm (1.6 inches)73%extreme
July Weather27°C (81°F)151 mm (6.0 inches)82%extreme
August Weather27°C (80°F)241 mm (9.5 inches)83%extreme
September Weather26°C (79°F)176 mm (6.9 inches)83%extreme
October Weather25°C (78°F)77 mm (3.0 inches)78%extreme
November Weather23°C (73°F)20 mm (0.8 inches)77%very high
December Weather20°C (68°F)17 mm (0.7 inches)78%high

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