nomadseason

December Weather in Santo Tome, Argentina

Last updated: August 22, 2025

In December, the average temperature in Santo Tome, Argentina hovers around 26°C (79°F). Expect a minimum of 12°C (54°F) and a sweltering maximum of 39°C (103°F). During this period, the region experiences about 79 mm (3.1 in) of precipitation spread over 9 days, contributing to an average humidity of 81%.

December Temperature in Santo Tome

In December in Santo Tome, the average temperature is 26°C (79°F). Maximums can reach 39°C (103°F), while minimums can drop to as low as 12°C (54°F). Be prepared for warm days and cooler nights when traveling during this month.

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

The chart illustrates December temperature patterns in Santo Tome, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tome, December typically has an average temperature of 26°C (79°F), with highs reaching up to 39°C (103°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec817975716461596267717579
Data source: Temperature data for Santo Tome generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Santo Tome

In Santo Tome in December, the precipitation amount is 79 mm (3.1 in) spread over 9 days.

December Precipitation Trends in Santo Tome

The chart displays monthly precipitation patterns in Santo Tome, 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 Tome, December typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec16171167135171101787611813913579
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Santo Tome

In Santo Tome in December, humidity is 81%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor adventures stickier and more draining, yet still vibrant with life—perfect for exploring local culture, but you'll want to take frequent breaks and stay hydrated.

December Average Humidity in Santo Tome

This chart illustrates the average monthly humidity levels in Santo Tome, 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 Tome is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%66%73%81%83%77%69%51%59%63%66%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Tome

In Santo Tome in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santo Tome, you can check here.

Maximum UV Index Levels in Santo Tome for December

The chart shows the monthly maximum UV Index (UVI) for Santo Tome 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 Tome typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210655710131414
Data source: Santo Tome 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 Tome Compares to Other Months

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

This table compares monthly weather conditions in Santo Tome, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)161 mm (6.4 inches)70%extreme
February Weather26°C (79°F)71 mm (2.8 inches)66%extreme
March Weather24°C (76°F)167 mm (6.6 inches)73%extreme
April Weather21°C (71°F)135 mm (5.3 inches)81%very high
May Weather18°C (64°F)171 mm (6.7 inches)82%high
June Weather16°C (61°F)101 mm (4.0 inches)77%moderate
July Weather15°C (59°F)78 mm (3.1 inches)69%moderate
August Weather17°C (63°F)76 mm (3.0 inches)51%high
September Weather20°C (67°F)118 mm (4.6 inches)59%very high
October Weather22°C (72°F)139 mm (5.5 inches)63%extreme
November Weather24°C (76°F)135 mm (5.3 inches)66%extreme
December Weather26°C (79°F)79 mm (3.1 inches)81%extreme

Compare Santo Tome's Climate with Cities Worldwide