Last updated: March 17, 2025
December in Rhondda, United Kingdom presents a chilly embrace, where temperatures range from a maximum of 12°C (54°F) to a biting minimum of -6°C (21°F), with an average settling at a brisk 6°C (43°F). This month is characterized by a high humidity level of 89%, making the cold feel even more penetrating. Rainfall is significant, with 144 mm (5.7 in) accumulated over 18 days, painting a picture of a moody, often drizzly landscape. Those venturing outdoors should prepare for the fluidity of winter weather that defines the Rhondda in December.
In December, temperatures in Rhondda, United Kingdom, begin to dip significantly, heralding the onset of winter. The month typically sees a minimum temperature around -6°C (21°F), while the average temperature hovers at a crisp 6°C (43°F). The maximum temperature, peaking at only 12°C (54°F), emphasizes the chill that settles in as the year draws to a close. Compared to the preceding months, December displays a notable trend towards colder conditions, with daytime averages dropping and nighttime lows plunging, making it one of the frostier periods of the year. As the landscape is often cloaked in a serene winter hush, this month provides the perfect backdrop for cozy gatherings and festive celebrations amidst the scenic beauty of Rhondda.
December in the Rhondda, United Kingdom, marks the peak of the region's precipitation, with a significant 144 mm (5.7 in) of rainfall spread over 18 days. This is notably higher than in previous months, reflecting the season's transition into winter and the arrival of more consistent wet weather. The increase in both precipitation and the number of rainy days demonstrates a clear shift from the drier spell experienced in the earlier months of the year. As temperatures drop, December's deluge not only contributes to the area's lush landscapes but also serves as a stark reminder of the challenging weather conditions typical of this time. Overall, December's downpours position it as a pivotal month in Rhondda's annual climate narrative.
As December settles in Rhondda, the air carries a notable humidity level of 89%, maintaining the region's characteristic moisture. This month's humidity is consistent with the pattern observed in late autumn, where figures peaked at 90% in November. A gradual decline from the spring months—when humidity was highest at 86% in March to a more moderate 70% in July—marks the seasonal transition. However, as winter envelops the area, humidity levels swing back upward, closely matching the high values seen at the beginning of the year. The overall trend in Rhondda illustrates a cycle of high humidity that fluctuates through the seasons, with December reinforcing the chill of winter with its damp air.
As the year draws to a close in December, Rhondda experiences its lowest UV Index at 1, categorizing sun exposure as low. This means residents can enjoy the outdoors without the immediate concern of sunburn, boasting a favorable burn time of a generous 45 minutes. Following a seasonal trend, the UV Index steadily increased from the mild levels of January and February to the high and very high levels in summer. Each month brought its own unique dynamics, with sun exposure reaching its peak around June and July, only to taper off as the year ends. For those in Rhondda, December's mild UV conditions offer a great opportunity to soak up the winter sun safely. For more detailed information, visit Rhondda UV Index.
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As the year draws to a close, December in Rhondda sees a significant dip in sunshine, with only 104 hours of sunlight illuminating the landscape. This trend reflects the gradual decline from the vibrant, sun-kissed days of summer, which peak in July at an impressive 410 hours. The gradual transition from the warmth of May and June’s ample light, peaking at 393 and 373 hours respectively, leads to the cloudier, colder months of autumn and early winter. By contrast, December's limited sunlight serves as a reminder of the changing seasons, following a year that blossomed with 205 hours in March and flourished through the brighter months. As the year ends, the Rhondda valley quietly awaits the return of longer, sunnier days, making the anticipation of brighter skies in spring all the more cherished.
In December, the likelihood of sunny weather in Rhondda, United Kingdom, sits at a modest 17%, similar to the gloom of January and October, which shows a distinct trend of diminishing chances for sunshine during the winter months. As the year progresses from the brighter days of April, where the sun shines nearly half the time, the prospects dwindle significantly in late autumn and early winter. The overall pattern reveals that while spring and early summer months boast higher sunny percentages, December is characterized by a somber sky, making it one of the cloudier months in the Rhondda calendar.
December in Rhondda, United Kingdom, marks a notable decline in daylight duration as the year draws to a close. With only 7 hours of sunlight, the winter month brings shorter days compared to the previous months, setting the stage for a cozy atmosphere. Following a gradual increase from just 8 hours in January to a peak of 16 hours during the summer months of June and July, daylight begins its retreat in August, and this trend continues through autumn, ultimately reaching its nadir in December. As the days grow shorter, residents brace for the chill and embrace the festive spirit, knowing that brighter days are just around the corner with the arrival of spring.
As December rolls into Rhondda, the wind begins to pick up, averaging 4.7 m/s (10 mph), signaling a shift from the gentler breezes of earlier months. Compared to the lull of summer, where July's winds dipped to a calm 2.9 m/s (6 mph), December's gusts offer a refreshing burst of energy. This increase in wind speed, particularly notable from the summer months and aligning with a slight uptick from November's 3.6 m/s (8 mph), hints at the seasonal changes that blanket the valleys in winter's embrace. The winter months, characterized by varying breezes, culminate in December’s noticeable rise, making it a noteworthy time for those who revel in the brisk, bracing air of the Rhondda landscape.
The weather in Rhondda 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 Rhondda and find detailed weather information for every month.
In comparison to December, January experiences slightly cooler average temperatures, with a high of 13°C (55°F) and a low of -6°C (22°F), contrasted with December's average of 6°C (43°F). While both months have similar minimum temperatures, January is characterized by reduced precipitation, totaling 82 mm (3.2 in) over 12 days, compared to December’s 144 mm (5.7 in) across 18 days. Humidity remains relatively high in both months, with December at 89% and January slightly lower at 88%. For more specific details on January weather conditions, you can visit Rhondda weather in January.
In December, temperatures tend to range from a chilly -6°C (21°F) at their lowest to a mild 12°C (54°F) at their peak, with an average of 6°C (43°F). The month also sees considerable precipitation, totaling 144 mm (5.7 in) over 18 days, coupled with high humidity levels averaging around 89%. In contrast, February offers slightly warmer conditions, with temperatures fluctuating between -5°C (23°F) and a maximum of 16°C (60°F), and an average of 5°C (42°F). February experiences a bit less precipitation at 124 mm (4.9 in) over 16 days and a slightly lower humidity of 88%. For more detailed weather insights, check out Rhondda weather in February.
In December, the weather is characteristically cold, with temperatures ranging from a chilling minimum of -6°C (21°F) to a maximum of 12°C (54°F), while March shows a slight improvement in warmth, with temperatures dropping to a low of -7°C (19°F) but reaching up to 19°C (66°F). Both months experience significant precipitation, with December receiving 144 mm (5.7 in) over 18 days and March slightly less at 111 mm (4.4 in) over 17 days. Humidity levels are also similar, with December at 89% and March slightly lower at 86%. For a more detailed look at March conditions, you can visit Rhondda weather in March.
In comparing the weather in December and April, a marked difference can be observed. December features cooler temperatures, with a minimum of -6°C (21°F), an average of 6°C (43°F), and a maximum of 12°C (54°F), alongside considerable precipitation of 144 mm (5.7 in) spread over 18 days and high humidity at 89%. In contrast, April brings milder conditions, with a minimum of -4°C (26°F), an average of 8°C (47°F), and a maximum of 21°C (70°F). Additionally, precipitation decreases significantly to 64 mm (2.5 in) over 10 days, and humidity slightly declines to 84%. For those interested in more specific insights about the weather in April, you can refer to Rhondda weather in April.
In December, temperatures typically range from a chilly -6°C (21°F) to a milder 12°C (54°F), with an average of 6°C (43°F). The month is characterized by high humidity at 89% and considerable precipitation, totaling 144 mm (5.7 in) over 18 days, making it one of the wetter months. In contrast, May brings more pleasant conditions, with temperatures varying from a minimum of -1°C (31°F) to a warm maximum of 25°C (77°F) and an average of 11°C (52°F). This month experiences less humidity at 80% and a decrease in precipitation to 93 mm (3.7 in) over 13 days, offering a clearer transition into summer. For a closer look at May weather, you can refer to Rhondda weather in May.
December and June present strikingly different weather conditions. In December, temperatures range from a chilly -6°C (21°F) to a mild 12°C (54°F), with an average of 6°C (43°F). The month is characterized by high humidity at 89% and significant precipitation, totaling 144 mm (5.7 in) over 18 days. In contrast, June warms up considerably, with minimum temperatures of 5°C (41°F) and maximums reaching up to 28°C (82°F), averaging 14°C (58°F). While June experiences less precipitation at 91 mm (3.6 in) over 15 days and a lower humidity level of 80%, it offers a more pleasant climate overall. For those interested in exploring more about the warm weather in June, check out Rhondda weather in June.
December and July present contrasting weather patterns in Rhondda. In December, temperatures can drop to a chilling minimum of -6°C (21°F), with an average of 6°C (43°F) and a maximum reaching only 12°C (54°F). The month is characterized by high humidity at 89% and significant precipitation, totaling 144 mm (5.7 in), spread over 18 days. In stark contrast, July enjoys warmer conditions, with temperatures ranging from a minimum of 6°C (42°F) to an average of 16°C (61°F) and a high of 28°C (82°F). With a lower precipitation total of 93 mm (3.7 in) over just 13 days and reduced humidity at 70%, July offers a much drier and sunnier climate. For more details, check out Rhondda weather in July.
In December, the weather is significantly colder, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 12°C (54°F) and an average of 6°C (43°F). This month experiences high humidity at 89% and considerable precipitation, totaling 144 mm (5.7 in) over 18 days. In contrast, August boasts milder temperatures, with minimums around 5°C (42°F) and maximums peaking at 28°C (83°F), averaging 15°C (60°F). The humidity is also lower at 73%, and while it still sees precipitation, it amounts to 114 mm (4.5 in) over just 17 days. For a closer look at August conditions, check out Rhondda weather in August.
In comparing the weather of December and September, significant contrasts emerge. December is characterized by colder temperatures, with a minimum of -6°C (21°F) and an average of 6°C (43°F), while September enjoys milder conditions, starting with a minimum of 2°C (36°F) and an average of 13°C (56°F). The maximum temperatures in December reach only up to 12°C (54°F) compared to September's warmer highs of 27°C (81°F). Additionally, December experiences higher precipitation, totaling 144 mm (5.7 in) over 18 days, whereas September sees less rainfall at 92 mm (3.6 in) across 13 days. Moreover, humidity is notably higher in December at 89%, compared to September's 79%, making the winter month feel even chillier. For more detailed insights, check Rhondda weather in September.
In comparing the weather between December and October, December tends to be colder with average temperatures ranging from a minimum of -6°C (21°F) to a maximum of 12°C (54°F), while October features milder weather with temperatures varying from -2°C (28°F) to a maximum of 21°C (70°F). Both months experience similar levels of precipitation, with December receiving 144 mm (5.7 in) over 18 days and October slightly less at 143 mm (5.6 in) over 15 days. Humidity remains constant at 89% for both months, but the notable difference lies in October's warmer temperatures, which make it a more pleasant month compared to the colder, often drearier December. For more details on October weather, visit Rhondda weather in October.
December generally brings colder temperatures compared to November, with average lows reaching -6°C (21°F) and highs of 12°C (54°F), while November sees milder temperatures, ranging from a minimum of -3°C (26°F) to a maximum of 15°C (59°F). Additionally, December experiences more precipitation, totaling 144 mm (5.7 in) over 18 days, compared to 117 mm (4.6 in) over 16 days in November. Humidity levels are slightly lower in December at 89%, compared to 90% in November, indicating a marginally drier feel during the last month of the year. For a detailed breakdown of November weather, you can visit Rhondda weather in November.
As December settles in Rhondda, the weather takes a noticeable turn, contrasting sharply with the milder autumn months. The chill in the air, with average temperatures hovering around 6°C, brings a sharp reminder of winter’s arrival. While days are often damp, with precipitation occurring on nearly two-thirds of the month, the landscape is transformed into a vibrant tableau of winter hues. The high humidity of 89% adds to the crisp atmosphere, making those rare moments of sunshine even more precious. Despite the frequent rainfall and colder temperatures, December offers a unique charm, inviting residents and visitors alike to embrace the seasonal spirit. For a deeper dive into Rhondda's year-round weather patterns, visit Rhondda Climate.