nomadseason

December Weather in South Bristol, United States

Last updated: June 24, 2025

In December, the average temperature in South Bristol, United States is a brisk 1°C (35°F), with lows dipping to a chilling -16°C (3°F) and highs reaching a comfortable 14°C (57°F). Expect 138 mm (5.4 in) of precipitation across approximately 12 days, accompanied by an average humidity of 81%. Stay warm and prepared for wet weather during this month!

December Temperature in South Bristol

In December in South Bristol, the average temperature is 1°C (35°F). Maximums can reach 14°C (57°F), while minimums can drop as low as -16°C (3°F). Travelers should be prepared for chilly conditions and pack accordingly to enjoy all that South Bristol has to offer.

December Weather in South Bristol: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in South Bristol, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Bristol, December typically has an average temperature of 1°C (35°F), with highs reaching up to 14°C (57°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec303134425059656762544335
Data source: Temperature data for South Bristol 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 South Bristol

In South Bristol in December, the precipitation amount is 138 mm (5.4 in) spread over a period of 12 days.

December Precipitation Trends in South Bristol

The chart displays monthly precipitation patterns in South Bristol, 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 South Bristol, December typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec981018613884741017490143123138
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in South Bristol

In South Bristol in December, humidity is 81%. With an average temperature of 1°C (35°F), this humidity feels like a thick, cold blanket wrapping around you, making travel uncomfortable and the air heavy, which can dampen your spirits as you navigate through the chilly conditions.

December Average Humidity in South Bristol

This chart illustrates the average monthly humidity levels in South Bristol, 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 South Bristol is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%79%79%86%85%83%80%77%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in South Bristol

In South Bristol in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in South Bristol, you can visit Hourly UV Index in South Bristol.

Maximum UV Index Levels in South Bristol for December

The chart shows the monthly maximum UV Index (UVI) for South Bristol 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 South Bristol typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: South Bristol 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 South Bristol Compares to Other Months

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

This table compares monthly weather conditions in South Bristol, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)98 mm (3.9 inches)85%low
February Weather0°C (32°F)101 mm (4.0 inches)86%moderate
March Weather1°C (35°F)86 mm (3.4 inches)84%moderate
April Weather6°C (43°F)138 mm (5.4 inches)79%high
May Weather10°C (50°F)84 mm (3.3 inches)79%very high
June Weather15°C (59°F)74 mm (2.9 inches)86%very high
July Weather18°C (65°F)101 mm (4.0 inches)85%very high
August Weather19°C (67°F)74 mm (2.9 inches)83%very high
September Weather17°C (62°F)89 mm (3.5 inches)80%high
October Weather12°C (55°F)143 mm (5.6 inches)77%moderate
November Weather6°C (44°F)123 mm (4.8 inches)80%moderate
December Weather1°C (35°F)138 mm (5.4 inches)81%low

Compare South Bristol's Climate with Cities Worldwide