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December Weather in Conception Bay South, Canada

Last updated: June 18, 2025

In December, the average temperature in Conception Bay South, Canada hovers around 1°C (33°F). Expect chilly conditions, with temperatures dipping as low as -10°C (15°F) and peaking at 13°C (55°F). Rain is likely, with an average precipitation of 148 mm (5.8 in) spread over 19 days. The air remains quite damp, with an average humidity of 83%.

December Temperature in Conception Bay South

In December in Conception Bay South, the average temperature is 1°C (33°F). Maximums can reach 13°C (55°F), while minimums can drop as low as -10°C (15°F). Travelers should be prepared for cold weather and pack accordingly to enjoy their visit.

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

The chart illustrates December temperature patterns in Conception Bay South, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Conception Bay South, December typically has an average temperature of 1°C (33°F), with highs reaching up to 13°C (55°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec282629354049576156484133
Data source: Temperature data for Conception Bay South 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 Conception Bay South

In Conception Bay South in December, the precipitation amount is 148 mm (5.8 in) over the course of 19 days.

December Precipitation Trends in Conception Bay South

The chart displays monthly precipitation patterns in Conception Bay South, 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 Conception Bay South, December typically receives around 148 mm (5.8 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1181131131199110010877122111124148
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Conception Bay South

In Conception Bay South in December, humidity is 83%. With an average temperature of 1°C (33°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable than expected.

December Average Humidity in Conception Bay South

This chart illustrates the average monthly humidity levels in Conception Bay South, 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 Conception Bay South is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%84%85%88%91%91%94%93%90%87%84%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Conception Bay South

In Conception Bay South in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Conception Bay South.

Maximum UV Index Levels in Conception Bay South for December

The chart shows the monthly maximum UV Index (UVI) for Conception Bay South 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 Conception Bay South typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810987421
Data source: Conception Bay South 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 Conception Bay South Compares to Other Months

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

This table compares monthly weather conditions in Conception Bay South, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)118 mm (4.7 inches)83%low
February Weather-3°C (26°F)113 mm (4.4 inches)84%moderate
March Weather-2°C (29°F)112 mm (4.4 inches)85%moderate
April Weather2°C (35°F)119 mm (4.7 inches)88%high
May Weather5°C (40°F)91 mm (3.6 inches)90%very high
June Weather9°C (49°F)100 mm (3.9 inches)91%very high
July Weather14°C (57°F)108 mm (4.3 inches)94%very high
August Weather16°C (62°F)77 mm (3.0 inches)93%very high
September Weather13°C (56°F)122 mm (4.8 inches)90%high
October Weather9°C (48°F)111 mm (4.4 inches)87%moderate
November Weather5°C (41°F)124 mm (4.9 inches)84%low
December Weather1°C (33°F)148 mm (5.8 inches)83%low

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