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December Weather in Santo Tomas, Nicaragua

Last updated: August 31, 2025

In December, the average temperature in Santo Tomas, Nicaragua is a pleasant 24°C (76°F), with daily variations ranging from a cozy 18°C (64°F) to a warm 31°C (88°F). Expect some rain, as 45 mm (1.8 in) of precipitation may fall over 16 days, creating a backdrop of lush greenery. The atmosphere is quite humid, with an average humidity level of 70%, making it a perfect time to experience the rich beauty of this location.

December Temperature in Santo Tomas

In December in Santo Tomas, the average temperature is 24°C (76°F). Maximums can reach 31°C (88°F), while minimums can drop to as low as 18°C (64°F). This pleasant climate makes it an ideal destination for outdoor activities and sightseeing.

December Weather in Santo Tomas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santo Tomas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tomas, December typically has an average temperature of 24°C (76°F), with highs reaching up to 31°C (88°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec757677808078787878777776
Data source: Temperature data for Santo Tomas 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 Santo Tomas

In Santo Tomas in December, the precipitation amount is 45 mm (1.8 in) spread over 16 days, indicating a relatively frequent occurrence of rain during that period.

December Precipitation Trends in Santo Tomas

The chart displays monthly precipitation patterns in Santo Tomas, 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 Santo Tomas, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec3029314424220612316121028312246
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Tomas

In Santo Tomas in December, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

December Average Humidity in Santo Tomas

This chart illustrates the average monthly humidity levels in Santo Tomas, 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 Santo Tomas is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%64%63%63%63%74%85%82%80%79%79%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Tomas

In Santo Tomas 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 Santo Tomas.

Maximum UV Index Levels in Santo Tomas for December

The chart shows the monthly maximum UV Index (UVI) for Santo Tomas 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 Santo Tomas typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141413141313131110
Data source: Santo Tomas 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 Santo Tomas Compares to Other Months

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

This table compares monthly weather conditions in Santo Tomas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)29 mm (1.2 inches)66%extreme
February Weather25°C (77°F)29 mm (1.1 inches)64%extreme
March Weather25°C (78°F)31 mm (1.2 inches)63%extreme
April Weather27°C (80°F)44 mm (1.7 inches)63%extreme
May Weather26°C (80°F)242 mm (9.5 inches)63%extreme
June Weather26°C (79°F)206 mm (8.1 inches)74%extreme
July Weather25°C (78°F)123 mm (4.8 inches)85%extreme
August Weather25°C (78°F)161 mm (6.3 inches)82%extreme
September Weather25°C (78°F)210 mm (8.3 inches)80%extreme
October Weather25°C (77°F)282 mm (11.1 inches)79%extreme
November Weather25°C (77°F)122 mm (4.8 inches)79%extreme
December Weather24°C (76°F)45 mm (1.8 inches)70%very high

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