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December Weather in San Ignacio, Mexico

Last updated: August 27, 2025

In December, the average temperature in San Ignacio, Mexico is a mild 15°C (59°F). During this time, temperatures can vary significantly, with a minimum of -3°C (27°F) and a maximum of 30°C (87°F). Expect 11 mm (0.4 in) of precipitation over 2 days, and be prepared for a high average humidity of 87%, making it a rather moist experience overall.

December Temperature in San Ignacio

In December in San Ignacio, the average temperature is 15°C (59°F). Maximums can reach 30°C (87°F) and minimums can drop as low as -3°C (27°F). Be sure to pack for a wide range of temperatures while traveling 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 15°C (59°F), with highs reaching up to 30°C (87°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec576266717474737472696358
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 11 mm (0.4 in) over the course of 2 days.

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 11 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec81014144253493672441211
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 87%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket, making traveling uncomfortable as the air feels thick and stifling, often leaving you feeling hot and sticky even when the temperature isn't too high.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the 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 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414131414131297
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 Weather14°C (58°F)8 mm (0.3 inches)75%very high
February Weather17°C (62°F)10 mm (0.4 inches)69%very high
March Weather19°C (67°F)14 mm (0.5 inches)65%extreme
April Weather22°C (71°F)14 mm (0.5 inches)64%extreme
May Weather24°C (75°F)42 mm (1.7 inches)75%extreme
June Weather23°C (74°F)53 mm (2.1 inches)78%extreme
July Weather23°C (74°F)48 mm (1.9 inches)67%extreme
August Weather23°C (74°F)36 mm (1.4 inches)64%extreme
September Weather22°C (72°F)72 mm (2.8 inches)81%extreme
October Weather20°C (69°F)44 mm (1.7 inches)85%extreme
November Weather17°C (63°F)12 mm (0.5 inches)87%very high
December Weather15°C (59°F)11 mm (0.4 inches)87%high

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