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December Weather in Santa Martha, Mexico

Last updated: August 27, 2025

In December, the average temperature in Santa Martha, Mexico is a pleasant 21°C (69°F). However, temperatures can vary widely, with a minimum of 5°C (41°F) and a maximum reaching up to 36°C (97°F). During this month, expect 13 mm (0.5 in) of precipitation spread over about 3 days, accompanied by high humidity levels averaging 89%.

December Temperature in Santa Martha

In December in Santa Martha, the average temperature is 21°C (69°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 5°C (41°F). This climate makes Santa Martha an ideal destination for travelers seeking warm weather, while also being prepared for cooler evenings.

December Weather in Santa Martha: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santa Martha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Martha, December typically has an average temperature of 21°C (69°F), with highs reaching up to 36°C (97°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec677176818584848482787369
Data source: Temperature data for Santa Martha 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 Santa Martha

In Santa Martha in December, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

December Precipitation Trends in Santa Martha

The chart displays monthly precipitation patterns in Santa Martha, 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 Santa Martha, December typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec38173534901841711281751392813
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Martha

In Santa Martha in December, humidity is 89%. With an average temperature of 21°C (69°F), this humidity feels like a warm blanket enveloping you, making travel a bit sticky and requiring frequent breaks to cool off and stay hydrated.

December Average Humidity in Santa Martha

This chart illustrates the average monthly humidity levels in Santa Martha, 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 Santa Martha is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%83%84%85%79%71%72%80%85%88%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Martha

In Santa Martha 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 Santa Martha, you can refer to this Hourly UV Index in Santa Martha.

Maximum UV Index Levels in Santa Martha for December

The chart shows the monthly maximum UV Index (UVI) for Santa Martha 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 Santa Martha typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121212121312121086
Data source: Santa Martha 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 Santa Martha Compares to Other Months

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

This table compares monthly weather conditions in Santa Martha, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (67°F)38 mm (1.5 inches)87%high
February Weather22°C (71°F)17 mm (0.7 inches)85%very high
March Weather24°C (76°F)35 mm (1.4 inches)83%extreme
April Weather27°C (81°F)34 mm (1.3 inches)84%extreme
May Weather29°C (85°F)90 mm (3.6 inches)85%extreme
June Weather29°C (84°F)184 mm (7.3 inches)79%extreme
July Weather29°C (84°F)171 mm (6.7 inches)71%extreme
August Weather29°C (84°F)128 mm (5.0 inches)72%extreme
September Weather28°C (82°F)175 mm (6.9 inches)80%extreme
October Weather26°C (79°F)139 mm (5.5 inches)85%very high
November Weather23°C (73°F)28 mm (1.1 inches)88%very high
December Weather21°C (69°F)13 mm (0.5 inches)89%high

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