Last updated: March 17, 2025
In Conwy, United Kingdom, December unfolds with a blend of crisp temperatures and frequent rain, creating a truly wintry atmosphere. The maximum temperature hovers around 13°C (56°F), while the average temperature settles at a chilly 6°C (44°F), dipping to a minimum of -3°C (26°F) on the coldest nights. December stands out with an impressive 115 mm (4.5 in) of precipitation spread over 18 days, contributing to the region's lush, green landscape. The month is enveloped in high humidity, averaging a notable 89%, making it a classic example of the damp coastal climate that characterizes this picturesque part of Wales.
In Conwy, United Kingdom, December ushers in the winter chill, with temperatures typically ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F). The average temperature hovers around 6°C (44°F), marking a decline from the milder conditions of autumn. As the year draws to a close, chilly mornings and cool evenings become commonplace, highlighting a transition from the more temperate months behind. This month also sees a notable dip in temperatures compared to November, reinforcing the onset of winter's grasp as frosty days become the norm in this picturesque coastal town.
In Conwy, United Kingdom, December marks the culmination of a notably wet year, with precipitation levels peaking at 115 mm (4.5 in) over 18 days. This significant rainfall reflects a trend seen throughout the year, where the colder months tend to bring increased moisture, particularly from October through December. Notably, December's precipitation is higher than all preceding months, highlighting the transition into winter's distinct weather patterns. The consistent frequency of rain during this month aligns with November's 18 rainy days, suggesting a persistent, damp atmosphere that sets the stage for the chilly winter ahead. As the final month of the year, December reinforces Conwy's reputation for being lush and green, driven by its abundant rainfall.
In December, Conwy, United Kingdom experiences a humidity level of 89%, continuing a trend of relatively high moisture in the air as winter deepens. Following the peak of 91% in November, the humidity slightly dips but remains substantial, indicative of the region's maritime climate. This month’s humidity aligns closely with January's 89%, creating a consistent winter atmosphere characterized by dampness. As the year winds down, it's evident that Conwy's humidity levels tend to be higher in the later months, with autumn transitioning seamlessly into the chilly, humid conditions typical of winter.
In Conwy, United Kingdom, the UV Index experiences a notable shift throughout the year. As December rolls in, the UV Index dips to a low level of 1, mirroring the conditions of January and November. This means residents can enjoy outdoor activities with a relatively safe exposure time of 45 minutes before risk of sunburn arises. The transition from the summer months—the peak with indices soaring to 8 in June and July—highlights the significant seasonal variation in UV radiation. With the UV Index decreasing to a gentle 2 in November and further to 1 in December, it's a reminder to embrace the cozy winter indoors while still enjoying the crisp, fresh air. For more details on how to navigate the UV levels throughout the year, explore Conwy UV Index.
UV Risk Categories
In Conwy, United Kingdom, December brings a gentle dip in sunshine, totaling 98 hours of daylight. This marks a continuation of the trend observed in the months leading up to winter, where daylight hours gradually decreased from a seasonal high of 405 hours in July. Notably, November's 114 hours still reflect the waning light as the year draws to a close. As we embrace the chill of December, it's clear that the enchanting charm of Conwy is accentuated by its fleeting sunshine, inviting visitors to relish in the crisp, clear days that the season offers, even if the sun is less prominent.
December in Conwy, United Kingdom, tends to be a gloomy month when it comes to sunny weather, with a modest 19% chance of sun. This slight dip follows a trend observed throughout the year, where the likelihood of sunshine generally peaks in the spring months, particularly in April at 46%. As we move into the winter months, the chances of seeing the sun consistently fall, with December only slightly edging above the dreariness of October and November. While December's cooler temperatures and shorter days contribute to the reduced sunlight, locals and visitors alike can still hold on to the hope of those rare, crisp sunny days amid the usual overcast skies.
In Conwy, United Kingdom, December heralds the arrival of the shortest days, with daylight lasting a mere 7 hours. As winter deepens, the gradual decline from the longer days of summer is evident, peaking at 16 hours in June and July. This natural ebb and flow showcases a clear trend, with daylight progressively increasing from January's 8 hours up to 14 hours in April and May, before gradually tapering off again as the year comes to a close. The transition is stark, providing a captivating glimpse into the region's seasonal rhythms, as the rich tapestry of changing daylight invites residents and visitors alike to embrace the cozy charm of winter.
As December settles over Conwy, the winds pick up, averaging around 4.4 m/s (10 mph), slightly stronger than the preceding months. This uptick follows a trend of increasing wind speeds from the gentler breezes of summer, with July experiencing its calmest days at just 2.4 m/s (5 mph). Each season tells its own story; after the brisker conditions of autumn, December's winds carry a crisp chill, marking a transition into winter. Interestingly, this month’s winds are comparable to both October and November, reflecting a consistent pattern that sets a dynamic, yet somewhat predictable tone as the year draws to a close. Whether it’s a brisk coastal stroll or the rustle of leaves, the December winds in Conwy invite an invigorating embrace of the season.
The weather in Conwy 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 Conwy and find detailed weather information for every month.
In December, temperatures typically range from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), with an average of 6°C (44°F). The month sees significant precipitation, totaling 115 mm (4.5 in) over 18 days, contributing to a relatively high humidity level of 89%. In contrast, January experiences slightly milder conditions, with temperatures ranging from -3°C (26°F) to 14°C (58°F) and an average of 5°C (42°F). Precipitation decreases to 71 mm (2.8 in) over 13 days, maintaining the same humidity level of 89%. For more detailed information about January weather, visit Conwy weather in January.
In December, temperatures typically range from a chilly -3°C (26°F) at night to a more moderate average of 6°C (44°F) during the day, peaking at around 13°C (56°F). The month is quite wet, with about 115 mm (4.5 in) of precipitation spread over 18 days, leading to a high humidity level of 89%. In contrast, February brings slightly colder minimum temperatures at -5°C (24°F), but it boasts a higher maximum of 18°C (65°F), maintaining a similar average of 6°C (43°F). Precipitation decreases to 92 mm (3.6 in) over 15 days, and humidity remains comparable at 88%. For a closer look at the conditions during this month, check out Conwy weather in February.
In December, temperatures range from a chilly min of -3°C (26°F) to a more moderate max of 13°C (56°F), with an average of 6°C (44°F). The month is notably wet, with 115 mm (4.5 in) of precipitation spread over 18 days and a high humidity level of 89%. In contrast, March experiences slightly lower minimum temperatures at -6°C (22°F) but enjoys a warmer average of 7°C (44°F) and a maximum of 19°C (66°F). Precipitation decreases to 96 mm (3.8 in) over 16 days, accompanied by a humidity level of 86%. For a more detailed look at weather patterns during this transition to spring, you can check Conwy weather in March.
When comparing the weather in December and April, it becomes clear that April features milder temperatures and less precipitation. In December, temperatures range from a low of -3°C (26°F) to a high of 13°C (56°F), accompanied by 115 mm (4.5 in) of rainfall over 18 days and high humidity at 89%. In contrast, April presents a more temperate climate, with temperatures varying from -1°C (30°F) to 22°C (72°F). Precipitation drops significantly to 56 mm (2.2 in) over just 11 days, and humidity is slightly lower at 84%. For more detailed information, you can visit Conwy weather in April.
December weather is characterized by colder temperatures, with a minimum of -3°C (26°F) and an average of 6°C (44°F), peaking at 13°C (56°F). It also experiences higher precipitation levels, totaling 115 mm (4.5 in) over approximately 18 days, accompanied by a high humidity of 89%. In contrast, May brings milder conditions, featuring a minimum temperature of -1°C (31°F) and a more comfortable average of 12°C (53°F), reaching a maximum of 27°C (81°F). The month sees significantly less precipitation, with 71 mm (2.8 in) over about 12 days and lower humidity at 79%. For a detailed overview, check out Conwy weather in May.
In December, temperatures range from a chilly -3°C (26°F) at night to a mild 13°C (56°F) during the day, with an average of 6°C (44°F). The month experiences significant precipitation, totaling 115 mm (4.5 in) over 18 days and maintaining high humidity at 89%. In contrast, June brings much warmer conditions, with nighttime lows of 6°C (42°F), daytime highs reaching 28°C (84°F), and an average temperature of 15°C (59°F). Precipitation also decreases to 99 mm (3.9 in) over 13 days, accompanied by lower humidity at 81%. For a detailed look at June's weather in Conwy, you can check Conwy weather in June.
December weather is characterized by cooler temperatures, with averages around 6°C (44°F) and lows dipping to -3°C (26°F). The month experiences frequent precipitation, totaling 115 mm (4.5 inches) over 18 days, and the high humidity of 89% adds to the chilly atmosphere. In contrast, July brings much warmer conditions, showcasing an average temperature of 16°C (61°F) and highs reaching up to 29°C (85°F). While July also sees some rain, with a total of 92 mm (3.6 inches) spread across 16 days, the humidity is slightly lower at 78%, making for a more comfortable environment. For a closer look at what to expect in July, check out Conwy weather in July.
December and August showcase contrasting weather patterns. In December, temperatures range from a chilly -3°C (26°F) at night to a maximum of 13°C (56°F) during the day, with an average temperature of 6°C (44°F). This month is characterized by higher humidity at 89% and significant precipitation of 115 mm (4.5 in) spread over 18 days. In contrast, August brings a more moderate and pleasant climate with minimum temperatures of 7°C (45°F) and maximums reaching 27°C (82°F), resulting in an average of 16°C (60°F). Precipitation is relatively lower at 96 mm (3.8 in), also occurring over 18 days, but with a lower humidity of 79%. For detailed insights into August weather specifically, you can refer to Conwy weather in August.
In December, the weather takes a distinctly colder turn, with temperatures ranging from a chilly -3°C (26°F) at night to a mild average of 6°C (44°F) during the day, peaking at 13°C (56°F). This month sees higher precipitation levels as well, with 115 mm (4.5 in) of rain spread over 18 days and a humidity level of 89%. In contrast, September enjoys milder conditions, with temperatures starting at a comfortable minimum of 3°C (37°F), averaging around 14°C (57°F), and reaching maximums of 27°C (81°F). In September, precipitation is lower at 96 mm (3.8 in) across 15 days, accompanied by slightly lower humidity at 85%. For a more detailed look at September's weather, you can visit Conwy weather in September.
December weather tends to be colder and wetter compared to October. In December, temperatures range from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), with an average of 6°C (44°F). The month also sees higher precipitation levels, with 115 mm (4.5 in) falling over 18 days, and humidity is relatively high at 89%. In contrast, October offers milder weather, with temperatures ranging from -2°C (28°F) to a warmer maximum of 21°C (70°F) and an average of 11°C (52°F). Precipitation stands at 107 mm (4.2 in) over 17 days, with humidity slightly higher at 90%. For more detailed insights on October weather, you can refer to Conwy weather in October.
In December, temperatures drop slightly compared to November, with minimums reaching -3°C (26°F) and averages around 6°C (44°F), while November sees a slightly milder average of 8°C (47°F) and a maximum of 16°C (60°F). Precipitation levels also increase in December, totaling 115 mm (4.5 in) over 18 days, compared to November's 91 mm (3.6 in) during the same number of days. Humidity remains high in both months, with December at 89% and November at 91%. For a closer look at November's weather patterns, check out Conwy weather in November.
December in Conwy brings a notable shift in weather, transforming the coastal town into a robust winter landscape. With average temperatures dipping to a refreshing 6°C (44°F), the month tends to be colder than its autumn predecessors. The increase in precipitation—spanning over half the month with 18 wet days—coupled with a high humidity level of 89%, adds a characteristic chill to the air. Unlike the milder months, December invites a cozy atmosphere, making it an ideal time for hot beverages and festive gatherings. To explore more about Conwy's weather patterns year-round, visit Conwy Climate.