December Weather in Bristol

Last updated: March 2, 2024

The weather in Bristol, United States, during December is characterized by an average temperature of 0°C (33°F). Highs can soar to 13°C (55°F), while lows may dip to -12°C (11°F). Typically, the humidity level in Bristol throughout December hovers around 81%.

-12°C (11°F)

Minimum temperature

0°C (33°F)

Average temperature

13°C (55°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In December, Bristol averages 58 mm (2.3 inches) of rainfall, typically over the course of 8 rainy days. The month enjoys an average of 9 hours 6 minutes of daylight, with the sun shining for approximately 5 hours 32 minutes each day. Additionally, there is a 31% probability of sunny days during this period.

58 mm (2.3 inches)

Precipitation

8 rainy days

Rainy days

5 hours 32 minutes

Sunshine hours

31%

Chance of sun

UV Index

In December, the UV Index in Bristol reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	0	1	1	2	2	2	2	1	1	1	0	0	0
Exposure	Low
Time to burn	45 min