December Weather in Cemaes Bay, United Kingdom

Last updated: March 17, 2025

December in Cemaes Bay, United Kingdom, is characterized by chilly temperatures and frequent precipitation. With a maximum temperature reaching 13°C (56°F) and an average of 9°C (48°F), the month presents a cool coastal climate, where the minimum dips to 4°C (39°F). Rainfall is notable, with a total of 145 mm (5.7 in) spread across 21 days, contributing to the picturesque, often misty landscape. Additionally, the humidity hovers around a high 89%, creating a damp atmosphere that enhances the beauty of Cemaes Bay during the winter season. Visitors can expect a blend of brisk seaside air and lush greenery, making it a unique time to explore this charming locale.

December Temperature in Cemaes Bay

In Cemaes Bay, United Kingdom, December ushers in a chill, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 13°C (56°F). The average temperature for the month settles at 9°C (48°F), hinting at a gradual drop from the milder autumn months. This cold snap marks a noteworthy transition in the yearly cycle, as temperatures begin to decrease from the slightly warmer averages noted in November. With each passing month, the trend indicates a cooling climate, setting the stage for winter’s embrace while still offering a relatively mild maritime chill compared to more inland areas. The upcoming frosty days may invite cozy moments indoors, as Cemaes Bay prepares for the winter season ahead.

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

The chart illustrates December temperature patterns in Cemaes Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464546485256596059555147
Data source: Temperature data for Cemaes 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 Cemaes Bay

December in Cemaes Bay, United Kingdom, sees significant precipitation, with an average of 145 mm (5.7 in) of rain falling over 21 days. This hefty rainfall marks a climactic end to a rainy year, closely following November's total of 142 mm. The trend is clear: as autumn gives way to winter, precipitation levels peak, with December showcasing nearly the same frequency of rainy days as the preceding month. Both months contribute to a wet finale, emphasizing the region's propensity for dampness during this time of year. With cold, gray skies becoming the norm, Cemaes Bay's December weather paints a quintessential picture of the British winter, making it a month where cozy indoor activities often take precedence over outdoor adventures.

December Precipitation Trends in Cemaes Bay

The chart displays monthly precipitation patterns in Cemaes 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.
JanFebMarAprMayJunJulAugSepOctNovDec8799914146776891101147142145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cemaes Bay

In Cemaes Bay, United Kingdom, December wraps up the year with a humidity level of 89%, marking a return to the higher moisture levels seen at the start of the year. Following a gradual decline from 91% in November, the December humidity showcases a notable stability common in winter months. Throughout the year, humidity levels align closely with seasonal transitions: peaking in the late autumn and holding steady in the winter, while experiencing dips during the warmer summer months, particularly in July and May, where they slide to their annual lows of 78% and 79% respectively. Overall, December’s humidity suggests a continuation of the cool and damp climate characteristic of this coastal region.

December Average Humidity in Cemaes Bay

This chart illustrates the average monthly humidity levels in Cemaes 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cemaes Bay

As we step into December in Cemaes Bay, United Kingdom, the UV Index drops back to 1, reflecting a low exposure category. This seasonal trend indicates that the sun's intensity is at its mildest, allowing for a burn time of 45 minutes—ideal for leisurely winter strolls without the worry of sunburn. Following a pattern of fluctuating UV levels throughout the year, December's reading aligns with January and November, marking a distinct drop from the high and very high levels experienced in the summer months. As part of a comprehensive understanding of outdoor safety, it’s beneficial to keep an eye on seasonal variations in UV exposure. For more detailed insights, check out the Cemaes Bay UV Index.

Maximum UV Index Levels in Cemaes Bay for December

The chart shows the monthly maximum UV Index (UVI) for Cemaes 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Cemaes 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 Cemaes Bay

In Cemaes Bay, December brings a gentle decline in sunshine hours, totaling 108 hours for the month. This marks a noticeable dip from the vibrant 421 hours of sunshine experienced in May, showcasing the transition into winter. As the year progresses, daylight begins to wane, especially after the peak summer months of July and August, which bask in over 400 hours of brilliant sunshine. Interestingly, December's count reflects a seasonal trend where the coastal town wraps itself in a tranquil, muted light, setting the stage for a serene winter atmosphere. Although the days grow shorter, the charm of Cemaes Bay remains, inviting visitors to enjoy its peaceful coastal beauty during this quieter time of year.

Monthly Sunshine Duration in Cemaes Bay: December Highlighted

The December sunshine duration represents the total number of hours Cemaes 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.
JanFebMarAprMayJunJulAugSepOctNovDec92h166h233h342h421h411h422h384h317h244h130h108h
Data source: Cemaes Bay December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cemaes Bay During December

In Cemaes Bay, the likelihood of sunny weather in December stands at a modest 25%, which is relatively consistent with the elongated stretch of winter gloom. As the year progresses, a noticeable increase in sunny days is evident from the chill of January's 23% to the brighter 50% of April. However, as temperatures drop in the latter months, the chances begin to wane again, with November and October each only reaching 19%. December, while still below the year's peak in late spring, brings a slight rebound, suggesting a hopeful but cautious outlook for those dreaming of clear skies as the year wraps up.

Percentage of Sunny Days in December in Cemaes Bay

The chart illustrates the percentage of sunny days in Cemaes 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 Cemaes Bay experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%24%27%50%38%29%39%29%23%19%19%25%
Data source: Cemaes Bay December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cemaes Bay in December

As December settles over Cemaes Bay, daylight hours dwindle to a mere seven hours, marking the year’s shortest days. This decline follows a seasonal pattern where daylight peaks during the summer months of June and July, boasting 16 hours, before gradually tapering off through autumn and into the depths of winter. The transition from the vibrant 15 hours of daylight in May suggests the onset of shorter days, as November’s eight hours give way to the stark minimum of December. This natural rhythm reflects the cyclical dance of the seasons, where each month brings a distinct change in light, encapsulating the tranquil beauty of Cemaes Bay's wintertime serenity.

Average Daylight Hours in Cemaes Bay for December

The chart illustrates the variation in daylight duration in Cemaes 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 7m9h 49m11h 54m14h 2m15h 54m16h 54m16h 22m14h 40m12h 37m10h 30m8h 35m7h 33m
Data source: Cemaes Bay daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Cemaes Bay

In December, Cemaes Bay experiences an average wind speed of 8.1 m/s (18 mph), marking a slight decrease from the previous months but still showcasing a robust winter breeze. November's gusts peak at 8.2 m/s, while October brings in the strongest winds at 8.6 m/s. The trend in wind speeds reveals a notable drop from summertime, where July and August present the calmest conditions, averaging just 4.0 m/s (9 mph) and 5.4 m/s (12 mph), respectively. As the year winds down, December's weather reminds us of the invigorating coastal atmosphere that characterizes this vibrant village, making it a unique spot for winter wandering and exploration.

Average December Wind Speed in Cemaes Bay

The chart displays monthly wind speed patterns in Cemaes 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.99.07.85.25.85.74.05.45.38.68.28.1 m/s
Data source: Cemaes Bay December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Cemaes Bay Compares to Other Months

The weather in Cemaes 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 Cemaes Bay and find detailed weather information for every month.

December weather typically presents slightly milder temperatures compared to January, with an average of 9°C (48°F) contrasted with January's average of 8°C (46°F). However, December experiences more precipitation, accumulating 145 mm (5.7 in) over 21 days, while January sees a decrease in rainfall to 87 mm (3.4 in) across 15 days. Interestingly, both months share a consistent humidity level of 89%. For more details on January's climatic conditions, you can check out Cemaes Bay weather in January.

December weather tends to be milder than February, with average temperatures ranging from 4°C (39°F) to 13°C (56°F) compared to February’s slightly cooler range of 0°C (32°F) to 13°C (56°F). Additionally, December sees higher precipitation levels, amounting to 145 mm (5.7 in) over 21 days, while February experiences lower rainfall at 99 mm (3.9 in) across 17 days. Despite the minor differences in temperature and humidity, both months share a cool climate, making them characteristic of the winter season. For a more detailed look at February conditions specifically, visit Cemaes Bay weather in February.

December and March present distinct weather characteristics, reflecting the transitional nature of winter into spring. In December, temperatures range from a minimum of 4°C (39°F) to a maximum of 13°C (56°F), with an average of 9°C (48°F). The month also sees considerable rainfall, with 145 mm (5.7 in) over approximately 21 days, resulting in high humidity levels of 89%. Conversely, March has a cooler minimum temperature of -2°C (29°F) but maintains a similar maximum temperature of 14°C (57°F) and an average of 8°C (46°F). Precipitation decreases significantly to 91 mm (3.6 in) over 17 days, with slightly lower humidity at 86%. Overall, while December is wetter and milder, March brings a chillier atmosphere and less rainfall, hinting at the approaching spring. For more details, you can explore Cemaes Bay weather in March.

December and April present contrasting weather conditions, despite having similar average temperatures, both at around 9°C (48°F). In December, temperatures range from a chilly 4°C (39°F) to a maximum of 13°C (56°F), while April enjoys slightly warmer highs, reaching up to 15°C (59°F), with a minimum of 3°C (38°F).

Precipitation also markedly differs between the two months; December sees a significant 145 mm (5.7 in) of rainfall over 21 days, contributing to a humidity level of 89%. In contrast, April experiences much lighter rainfall, totaling just 41 mm (1.6 in) over only 8 days, and a slightly lower humidity level of 84%. For more details about the weather in April, you can check this link: Cemaes Bay weather in April.

When comparing December and May weather, December is characterized by cooler temperatures, with a minimum of 4°C (39°F) and an average of 9°C (48°F), peaking at 13°C (56°F). The month also sees significant precipitation, averaging 145 mm (5.7 in) over about 21 days, along with a high humidity level of 89%. In contrast, May offers more mild and pleasant conditions, with temperatures starting at a minimum of 5°C (41°F), averaging 11°C (52°F), and reaching a maximum of 18°C (65°F). Rainfall is notably lower at 46 mm (1.8 in) over just 9 days, with humidity dropping to a more comfortable 79%. For more detailed insights into May conditions, visit Cemaes Bay weather in May.

December and June present a stark contrast in weather conditions. In December, temperatures range from a chilly 4°C (39°F) to a mild 13°C (56°F), with an average of 9°C (48°F). The month is characterized by frequent rainfall, totaling 145 mm (5.7 in) over 21 days, and humidity levels are high at 89%. In contrast, June boasts warmer temperatures, with a minimum of 9°C (49°F), an average of 13°C (56°F), and a maximum of 21°C (71°F). Precipitation decreases significantly to 77 mm (3.0 in) over just 12 days, accompanied by a slightly lower humidity of 81%. Overall, June offers a more pleasant and drier weather experience compared to the damp chill of December. For more detailed information about weather patterns, check out Cemaes Bay weather in June.

Comparing the weather in December and July reveals a notable contrast in temperature and precipitation. December experiences cooler temperatures, with averages ranging from 4°C (39°F) to a maximum of 13°C (56°F), while July offers much warmer conditions, with temperatures ranging from 11°C (52°F) to a pleasant maximum of 21°C (70°F). Additionally, December is characterized by significantly higher precipitation, totaling 145 mm (5.7 in) over 21 days, compared to July's milder 68 mm (2.7 in) across just 12 days. The humidity also remains higher in December at 89%, while July sees a more comfortable 78%. For a detailed look at July's weather in a specific location, you can check out Cemaes Bay weather in July.

December weather in Cemaes Bay is notably cooler and wetter compared to August. While December temperatures range from a chilly 4°C (39°F) at night to a mild 13°C (56°F) during the day, August enjoys much warmer conditions with lows of 12°C (55°F) and highs reaching up to 20°C (69°F). Precipitation is more frequent in December, with 145 mm (5.7 in) falling over 21 days, compared to 91 mm (3.6 in) over 17 days in August. Additionally, December's humidity is higher at 89%, while August maintains a more comfortable 79%. For those interested in more details on August weather, visit Cemaes Bay weather in August.

In comparing the weather of December and September, December presents a significantly cooler climate, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 13°C (56°F), while September enjoys milder conditions, with temperatures fluctuating between 11°C (51°F) and 21°C (70°F). Additionally, December experiences higher precipitation, totaling 145 mm (5.7 in) over 21 days, compared to September's 101 mm (4.0 in) spread over just 15 days. Humidity levels are also slightly elevated in December at 89%, contrasted with September's 85%. For a more detailed insight into September weather, check Cemaes Bay weather in September.

In comparison to October, December tends to be cooler, with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 13°C (56°F), while October enjoys milder temperatures, peaking at an average of 19°C (66°F). Both months experience significant precipitation, with December receiving 145 mm (5.7 in) over 21 days, slightly less than October's 147 mm (5.8 in) over 19 days. Humidity remains high during both months, with December at 89% and October at 90%. For those interested in more detailed weather patterns, you can check Cemaes Bay weather in October.

When comparing the weather in December to that of November, we notice a slight drop in temperatures. December's minimum temperature hovers around 4°C (39°F), while November has a slightly warmer minimum of 5°C (42°F). The average temperatures also reflect this trend, with December averaging 9°C (48°F) compared to November's 10°C (51°F). The maximum temperatures for both months are close, but December reaches a high of 13°C (56°F) versus November's 15°C (60°F).

Precipitation levels are quite similar, with December receiving 145 mm (5.7 in) over 21 days, just slightly more than November's 142 mm (5.6 in) across 20 days. Humidity remains relatively high in both months, with December at 89% and November at 91%. For those interested in more specific details about November weather, you can check out Cemaes Bay weather in November.

Compare Cemaes Bay's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Cemaes Bay

As December settles in at Cemaes Bay, it brings a notable shift in weather patterns compared to the milder months. With an average temperature hovering around 9°C, the chill begins to bite, signaling the approach of winter. This month experiences significantly increased precipitation, with rain falling on the majority of days, contributing to the high humidity levels that can make the air feel quite heavy. While the coastal beauty continues to charm, visitors should prepare for the frequent rain showers and cooler temperatures that define this time of year. For a more detailed understanding of the region's weather throughout the seasons, explore Cemaes Bay Climate.