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December Weather in Santa Barbara, Peru

Last updated: August 27, 2025

In Santa Barbara, Peru, the average temperature in December hovers around 19°C (66°F), with a comfortable range stretching from a minimum of 17°C (63°F) to a maximum of 22°C (71°F). Expect light rain, as precipitation is around 10 mm (0.4 in) over 2 days. Additionally, the atmosphere is quite humid, with an average humidity of 87%, perfect for those who appreciate a lush environment!

December Temperature in Santa Barbara

In December in Santa Barbara, the average temperature is 19°C (66°F). The maximum can reach 22°C (71°F), while the minimum can drop to as low as 17°C (63°F). This mild climate makes Santa Barbara an ideal destination for travelers looking to enjoy comfortable weather during this time.

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

The chart illustrates December temperature patterns in Santa Barbara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Barbara, December typically has an average temperature of 19°C (66°F), with highs reaching up to 22°C (71°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec707171686462616060616366
Data source: Temperature data for Santa Barbara 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 Barbara

In Santa Barbara in December, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

December Precipitation Trends in Santa Barbara

The chart displays monthly precipitation patterns in Santa Barbara, 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 Barbara, December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec2423191012171614108810
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Barbara

In Santa Barbara in December humidity is 87%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making travel feel a bit sticky and slowing down your movements as you navigate through the area's vibrant streets.

December Average Humidity in Santa Barbara

This chart illustrates the average monthly humidity levels in Santa Barbara, 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 Barbara is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%89%83%69%56%51%53%68%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Barbara

In Santa Barbara in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Santa Barbara.

Maximum UV Index Levels in Santa Barbara for December

The chart shows the monthly maximum UV Index (UVI) for Santa Barbara 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 Barbara typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151615141110111214151615
Data source: Santa Barbara 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 Barbara Compares to Other Months

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

This table compares monthly weather conditions in Santa Barbara, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)24 mm (0.9 inches)89%extreme
February Weather22°C (71°F)23 mm (0.9 inches)89%extreme
March Weather22°C (71°F)19 mm (0.7 inches)90%extreme
April Weather20°C (68°F)10 mm (0.4 inches)89%extreme
May Weather18°C (65°F)12 mm (0.5 inches)83%extreme
June Weather17°C (62°F)17 mm (0.7 inches)69%very high
July Weather16°C (61°F)16 mm (0.6 inches)56%extreme
August Weather15°C (60°F)14 mm (0.5 inches)50%extreme
September Weather15°C (60°F)10 mm (0.4 inches)53%extreme
October Weather16°C (61°F)8 mm (0.3 inches)68%extreme
November Weather17°C (63°F)8 mm (0.3 inches)81%extreme
December Weather19°C (66°F)10 mm (0.4 inches)87%extreme

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