December Weather in Cowichan Bay, Canada

Last updated: April 22, 2025

December in Cowichan Bay, Canada offers a captivating blend of winter chill and coastal charm. With maximum temperatures reaching a mild 13°C (55°F) and an average of 4°C (40°F), residents and visitors alike can expect a brisk atmosphere. The month sees temperatures dipping as low as -9°C (15°F), providing a true taste of winter. Precipitation is a noteworthy characteristic of this time, totaling 184 mm (7.3 in) over 18 rainy days, creating a lush, vibrant landscape. Coupled with a high humidity level of 87%, December's weather in Cowichan Bay tells a story of seasonal transitions, where the refreshing coastal breeze and the greenery of the countryside intertwine beautifully.

December Temperature in Cowichan Bay

In Cowichan Bay, Canada, December ushers in the heart of winter, reflecting a stark contrast to the milder months that precede it. Temperatures dip significantly, with minimums plummeting to -9°C (15°F), mirroring the chill that sets in as the year comes to a close. The average temperature sits at a brisk 4°C (40°F), while daytime highs reach a modest 13°C (55°F). This pattern of coolness heralds the onset of winter activities and cozy indoor gatherings. As the coldest month in this serene coastal town, December showcases the shift from the comfortable averages of autumn, encapsulating the transition into a true winter atmosphere.

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

The chart illustrates December temperature patterns in Cowichan Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec403843485561656660504540
Data source: Temperature data for Cowichan Bay 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 Cowichan Bay

December in Cowichan Bay marks a significant peak in precipitation, with 184 mm (7.3 in) of rain falling over 18 days. This is a notable increase compared to the drier months of summer, highlighting a clear trend as the region transitions into winter. Following November’s hefty 206 mm (8.1 in), December maintains the damp and rainy atmosphere typical for the time of year, further underscoring the pattern of heavy precipitation during the fall and winter months. These trends not only influence the local landscape but also ensure the vibrant ecosystems of the area thrive amidst the winter rains.

December Precipitation Trends in Cowichan Bay

The chart displays monthly precipitation patterns in Cowichan Bay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec17611596894739142189123206185
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cowichan Bay

In December, Cowichan Bay experiences a humidity level of 87%, consistent with the high moisture prevalent throughout the late fall and winter months. This slight dip from the 88% in October shows a gradual trend toward lower humidity, which continues into the new year. Interestingly, as the seasons transition from the vibrant spring months—where humidity peaks at 86%—to the drier summer, we witness a clear pattern. The dryest month in the year, August, sees humidity drop to 77%, only to rise again as autumn approaches, demonstrating Cowichan Bay's characteristic climate fluctuations. Overall, December's humidity reflects the region's penchant for moisture-laden air as it wraps up another year.

December Average Humidity in Cowichan Bay

This chart illustrates the average monthly humidity levels in Cowichan Bay, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cowichan Bay

As the year winds down, Cowichan Bay sees a significant decrease in the UV Index, falling to a low of 1 in December. This gentle drop in UV exposure reflects a broader trend throughout the colder months, where the Index starts at a moderate 3 in February and peaks at 9 during the sunnier summer months of June and July. With winter's arrival, residents and visitors can delight in longer burn times of 45 minutes, allowing for leisurely outdoor activities without the immediate concern of UV damage. Such a shift is a reminder to adjust sun protection habits seasonally, making December a comfortable time to enjoy Cowichan Bay's natural beauty. For more detailed information, check the Cowichan Bay UV Index.

Maximum UV Index Levels in Cowichan Bay for December

The chart shows the monthly maximum UV Index (UVI) for Cowichan Bay 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689987421
Data source: Cowichan Bay 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.

December Sunshine in Cowichan Bay

As the year winds down in Cowichan Bay, December typically greets residents with 96 hours of sunlight, a gentle dip from the vibrant November. This trend reflects the onset of winter, with daylight hours gradually diminishing after a peak in the sun-soaked summer months, which boast up to 384 hours in July. The transition from 330 hours in May to 246 hours in the fall hints at the region's seasonal rhythm, where each month offers a unique tableau of light. Although December brings fewer sunny days, the soft glow of the winter sun paints the landscape in serene shades, inviting reflection and warmth during the chill of the season.

Monthly Sunshine Duration in Cowichan Bay: December Highlighted

The December sunshine duration represents the total number of hours Cowichan Bay experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec82h144h207h237h330h344h384h346h254h185h123h96h
Data source: Cowichan Bay December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cowichan Bay During December

As we approach December in Cowichan Bay, the likelihood of experiencing sunny weather dips to 22%, marking a continuation of the trend observed in the preceding months. With the weather becoming increasingly overcast, this month presents fewer opportunities for sunshine compared to the brighter days of late spring and summer, where the likelihood peaks at 72% in July. Typically, April and June offer promising chances for clear skies, both enjoying a 54% chance of sun. However, as we transition into winter, the chance of sun wanes significantly, mirroring a broader pattern of declining sunlight from fall into winter. Therefore, December may not be the month for sun seekers in Cowichan Bay, but it does offer a tranquil and picturesque winter landscape for those who appreciate the beauty of the season.

Percentage of Sunny Days in December in Cowichan Bay

The chart illustrates the percentage of sunny days in Cowichan Bay throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Cowichan Bay experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%27%30%54%39%55%72%54%33%24%19%22%
Data source: Cowichan Bay December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cowichan Bay in December

In Cowichan Bay, Canada, December marks the return to shorter days, with daylight lasting around 8 hours. This gradual decline in sunlight begins in autumn, as the longest day peaks in June with an impressive 16 hours. Following the peak, daylight decreases steadily until it reaches its winter minimum by the end of the year. The transition through the seasons is striking, as May's golden evenings with 15 hours of light give way to November's gloom of just 9 hours. This pattern highlights the rhythmic nature of daylight in Cowichan Bay, inviting residents to embrace the cozy indoor pursuits that accompany the longer nights of winter.

Average Daylight Hours in Cowichan Bay for December

The chart illustrates the variation in daylight duration in Cowichan Bay throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 47m10h 11m11h 57m13h 44m15h 17m16h 4m15h 37m14h 14m12h 30m10h 43m9h 9m8h 19m
Data source: Cowichan Bay daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Cowichan Bay

In Cowichan Bay, Canada, December ushers in a breezy end to the year, with average wind speeds reaching 3.3 m/s (7 mph). This reflects a notable consistency in wind patterns throughout the late fall and winter months, as both November and December share this wind speed, marking a peak when compared to the calm earlier months. The autumn months exhibit a gradual increase in wind speed, with October and November both at 3.0 m/s and 3.3 m/s, respectively, hinting at the seasonal shift that brings a briskness to the coastal air. As the year closes, the winds carry with them a refreshing chill, inviting residents and visitors alike to embrace the beauty of Cowichan Bay amidst its stunning winter landscape.

Average December Wind Speed in Cowichan Bay

The chart displays monthly wind speed patterns in Cowichan Bay, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.32.62.52.32.52.32.42.43.03.33.3 m/s
Data source: Cowichan Bay December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Cowichan Bay Compares to Other Months

The weather in Cowichan Bay changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Cowichan Bay and find detailed weather information for every month.

December and January in Cowichan Bay exhibit similar temperature patterns, with both months experiencing minimums of -9°C (15°F) and average highs around 4°C (40°F). However, January tends to be slightly cooler, reaching a maximum of 11°C (52°F), compared to December's 13°C (55°F). Precipitation remains high in both months, with December receiving 184 mm (7.3 in) over 18 days, while January sees a bit less at 176 mm (6.9 in) across 15 days. The humidity is fairly consistent as well, with December at 87% and January at 86%. For a detailed look at the weather trends in January, visit Cowichan Bay weather in January.

December and February exhibit notably similar patterns in temperature, but with some differences in precipitation. In December, the minimum temperature dips to -9°C (15°F), while February sees a slightly higher minimum of -7°C (19°F). The average temperatures are comparable, with December averaging 4°C (40°F) and February averaging 3°C (38°F). Precipitation is more prevalent in December, totaling 184 mm (7.3 in) over 18 days, compared to February's 114 mm (4.5 in) spread across 15 days. Humidity levels are also quite close, with December at 87% and February at 85%. For more details on February weather trends, visit Cowichan Bay weather in February.

December and March present distinct weather characteristics. December typically experiences colder temperatures, with a minimum of -9°C (15°F) and an average of 4°C (40°F), while March sees milder conditions, with a minimum of -2°C (29°F) and an average of 6°C (43°F). Precipitation is more abundant in December, totaling 184 mm (7.3 in) over 18 days, compared to March's 96 mm (3.8 in) across 14 days, indicating a drier month. Humidity remains relatively high in both months, at about 87% in December and 86% in March, but the general trend suggests a gradual transition toward slightly warmer and less wet conditions as winter gives way to spring. For a closer look at the specific weather patterns in March, you can refer to Cowichan Bay weather in March.

The weather in December contrasts sharply with that of April, showcasing the transition from winter to spring. December experiences much colder temperatures, ranging from a minimum of -9°C (15°F) to an average of 4°C (40°F), with a maximum of 13°C (55°F). Additionally, it is marked by higher precipitation levels, totaling 184 mm (7.3 in) over 18 days, and a high humidity of 87%. In contrast, April brings milder temperatures, with a minimum of 2°C (35°F), an average of 9°C (48°F), and a pleasant maximum of 22°C (72°F). The precipitation in April is significantly lower at 89 mm (3.5 in) over 13 days, with humidity slightly reduced to 86%. For more information on Cowichan Bay's April weather, check out Cowichan Bay weather in April.

When comparing December and May, the differences in weather are striking. December is characterized by much colder temperatures, with a minimum of -9°C (15°F) and an average of 4°C (40°F), while May sees milder temperatures ranging from a minimum of 3°C (38°F) to a comfortable maximum of 25°C (77°F). Precipitation also varies significantly; December receives 184 mm (7.3 in) of rain over approximately 18 days, in contrast to May's lighter rainfall of 47 mm (1.9 in) over just 9 days. Additionally, December has higher humidity levels at 87%, whereas May experiences a slightly lower humidity of 81%. Overall, May offers a more pleasant and drier climate, perfect for outdoor activities. For more details, check Cowichan Bay weather in May.

In December, the weather is characterized by chilly temperatures, with a minimum of -9°C (15°F) and an average of 4°C (40°F), peaking at 13°C (55°F). The month also sees considerable precipitation, totaling 184 mm (7.3 in) over approximately 18 days, accompanied by high humidity levels at 87%. In contrast, June brings warmer and more temperate conditions, where temperatures range from a minimum of 8°C (47°F) to an average of 16°C (61°F), reaching a high of 38°C (100°F). Precipitation is significantly lower at 39 mm (1.5 in) across just 7 days, with humidity slightly reduced at 83%. For a closer look at the delightful weather conditions in June, check out Cowichan Bay weather in June.

December and July present stark contrasts in weather conditions. In December, temperatures can plunge to a minimum of -9°C (15°F), with an average of 4°C (40°F) and a maximum of 13°C (55°F). This month is characterized by significant precipitation, totaling 184 mm (7.3 in) over 18 days, accompanied by high humidity at 87%. In contrast, July boasts much milder temperatures, with a minimum of 11°C (52°F), an average of 18°C (65°F), and a maximum of 32°C (90°F). The summer month experiences minimal rainfall, accumulating only 14 mm (0.6 in) across just 3 days, and slightly lower humidity at 84%. For more insights into the summer weather, you can check the details here: Cowichan Bay weather in July.

When comparing the weather in December and August, significant differences emerge. December experiences much colder temperatures, with a minimum of -9°C (15°F) and an average of 4°C (40°F), while August enjoys milder conditions, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 31°C (88°F). Precipitation also varies widely; December sees a substantial amount of rainfall at 184 mm (7.3 inches) over 18 days, contrasting sharply with the minimal 20 mm (0.8 inches) of rain during just 4 days in August. Additionally, December's humidity is notably higher at 87%, compared to August's more comfortable 77%. For a closer look at August weather specifics, visit Cowichan Bay weather in August.

December and September present contrasting weather conditions, highlighting the dramatic seasonal shifts. In December, temperatures can drop to a minimum of -9°C (15°F), with an average of 4°C (40°F) and a maximum of 13°C (55°F). The month is marked by significant precipitation, totaling 184 mm (7.3 in) over 18 days, alongside high humidity levels of 87%.

In contrast, September enjoys milder conditions, with temperatures ranging from a minimum of 8°C (47°F) to a comfortable maximum of 29°C (84°F), averaging around 15°C (60°F). Rainfall is considerably less, with 89 mm (3.5 in) over 11 days and lower humidity at 76%. For more detailed information about September weather, you can visit Cowichan Bay weather in September.

When comparing the weather in December and October, December tends to be much colder, with temperatures ranging from a frigid minimum of -9°C (15°F) to an average of 4°C (40°F), while October offers milder conditions, featuring a minimum of 1°C (34°F) and an average of 10°C (51°F). Additionally, December experiences significantly more precipitation at 184 mm (7.3 in) over 18 days, compared to October's 123 mm (4.8 in) over 13 days. Despite the slight difference in humidity, with December at 87% and October at 88%, the overall feel is markedly different, making October a more pleasant time for outdoor activities. For more details, visit Cowichan Bay weather in October.

In comparing the weather between November and December, we see that December experiences lower average temperatures, with a minimum of -9°C (15°F) and an average of 4°C (40°F), compared to November's minimum of -2°C (28°F) and an average of 7°C (45°F). Although both months have the same number of rainy days (18), December's precipitation totals 184 mm (7.3 in), slightly less than November's 206 mm (8.1 in). Interestingly, humidity levels remain constant at 87% for both months. Overall, December is colder and slightly drier, making November milder, as explained in more detail at Cowichan Bay weather in November.

Compare Cowichan Bay's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Cowichan Bay

As December settles over Cowichan Bay, the weather takes on a distinct character, marked by cooler temperatures and increased precipitation compared to the preceding months. The average chill of 4°C sets a comfortable yet brisk tone, while occasional dips to as low as -9°C remind us that winter is firmly in command. With about 184 mm of rain falling over 18 days, December is one of the wetter months, contributing to the lush landscape characteristic of this coastal region. The high humidity, averaging 87%, creates a damp atmosphere that feels particularly fresh and invigorating. For a deeper understanding of how these conditions fit into the broader climate trends, explore our detailed insights on Cowichan Bay Climate.