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December Weather in Bonny Doon, United States

Last updated: June 24, 2025

In December, the average temperature in Bonny Doon, United States hovers around 12°C (54°F), with a comfortable range between 8°C (46°F) and 20°C (68°F). Expect a fair amount of precipitation, totaling 122 mm (4.8 in) across 9 days, while the air feels relatively humid, averaging about 80%. Prepare for a mix of mild temperatures and occasional showers!

December Temperature in Bonny Doon

In December, in Bonny Doon, the average temperature is 12°C (54°F), with a maximum that can reach 20°C (68°F) and a minimum that can drop as low as 8°C (46°F). This mild climate makes it a great time to enjoy outdoor activities while exploring the vibrant local culture.

December Weather in Bonny Doon: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Bonny Doon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bonny Doon, December typically has an average temperature of 12°C (54°F), with highs reaching up to 20°C (68°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec535252535457575961595654
Data source: Temperature data for Bonny Doon 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 Bonny Doon

In Bonny Doon in December, the precipitation amount is 122 mm (4.8 in) over a span of 9 days.

December Precipitation Trends in Bonny Doon

The chart displays monthly precipitation patterns in Bonny Doon, 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 Bonny Doon, December typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec13313091372232232954122
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bonny Doon

In Bonny Doon in December, humidity is 80%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket that wraps around you, making it feel much cooler and damp. Traveling in these conditions might leave you feeling chilly and slightly uncomfortable, as the moisture in the air clings to your skin and clothes, turning each step into a soggy endeavor.

December Average Humidity in Bonny Doon

This chart illustrates the average monthly humidity levels in Bonny Doon, 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 Bonny Doon is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bonny Doon

In Bonny Doon in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Bonny Doon, you can check the information here.

Maximum UV Index Levels in Bonny Doon for December

The chart shows the monthly maximum UV Index (UVI) for Bonny Doon 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 Bonny Doon typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4589101111109753
Data source: Bonny Doon 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 Bonny Doon Compares to Other Months

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

This table compares monthly weather conditions in Bonny Doon, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)133 mm (5.2 inches)82%moderate
February Weather11°C (53°F)130 mm (5.1 inches)84%moderate
March Weather11°C (52°F)91 mm (3.6 inches)82%very high
April Weather12°C (54°F)37 mm (1.5 inches)78%very high
May Weather12°C (54°F)22 mm (0.8 inches)71%very high
June Weather14°C (57°F)3 mm (0.1 inches)64%extreme
July Weather14°C (58°F)2 mm (0.1 inches)58%extreme
August Weather15°C (60°F)2 mm (0.1 inches)54%very high
September Weather16°C (61°F)2 mm (0.1 inches)55%very high
October Weather15°C (60°F)29 mm (1.1 inches)62%high
November Weather14°C (57°F)54 mm (2.1 inches)78%moderate
December Weather12°C (54°F)122 mm (4.8 inches)80%moderate

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