Last updated: March 17, 2025
January in Rhondda, United Kingdom, features a max temperature of 13°C (55°F) and an average low of -6°C (22°F), showcasing the region's chilly winter climate. With average precipitation totaling 82 mm (3.2 in) across 12 rainy days, residents can expect a damp and humid month, often feeling the 88% humidity in the air. While the landscape may frequently be cloaked in clouds, this winter month offers a unique charm and an opportunity to experience the raw beauty of the Welsh countryside.
In January, temperatures in Rhondda, United Kingdom reveal a stark winter chill, with minimums plummeting to -6°C (22°F) and an average of only 4°C (40°F). The maximum temperature holds at 13°C (55°F), hinting at brief moments of respite amidst the cold. This month sets the tone for the transitioning seasons, as February gradually nudges the mercury upward, showing an increase in both average and maximum temperatures. As winter wanes, the steady rise towards spring becomes clear, with March temperatures beginning to flirt with the teens, allowing a glimpse of the warmer days ahead. The trend continues into April and beyond, where opportunities for milder weather bloom, starkly contrasting January’s icy grip.
In January, the Rhondda region experiences an average precipitation of 82 mm (3.2 in) over 12 days, marking the beginning of the year with a moderate amount of rain. As winter transitions into spring, precipitation gradually increases, particularly in February, which sees a significant jump to 124 mm (4.9 in) across 16 days. This upward trend continues into March at 111 mm (4.4 in) and peaks in the autumn months, particularly in October with 143 mm (5.6 in) over 15 days. Notably, December also delivers a substantial 144 mm (5.7 in), wrapping up the year with heavy rainfall. Thus, while January starts the year with relatively milder conditions, the subsequent months herald a pattern of increasing precipitation, illustrating Rhondda's characteristic wet climate as it approaches the springtime peak.
In January, the humidity in Rhondda, United Kingdom, sits at a notable 88%, matching February's levels, which creates a rather damp atmosphere as winter holds its grip. As the seasons transition, March sees a slight dip to 86%, but the moisture remains consistently high throughout the early months. The trend continues downward to 84% in April and 80% in both May and June, hinting at a gradual warming trend. However, as summer peaks with July's low of 70%, the air feels markedly drier. In contrast, humidity levels rise again from August to October, peaking at 89% in October and holding a strong presence through the closing months of the year, with November reaching 90%. This cyclical pattern of high humidity in the colder months and a lesser degree in summer underscores the region's distinctive climate characteristics.
In January, the UV Index in Rhondda, United Kingdom, is a modest 1, categorized as low, indicating that the chance of harm from unprotected sun exposure is minimal. With a comfortable burn time of around 45 minutes, it's an ideal month to enjoy the outdoors without much concern for UV-related risks. As winter progresses into February, the UV Index ticks up slightly to 2, maintaining the low exposure category but encouraging a bit more awareness as the days gradually lengthen. This trend continues, with the UV Index reaching 4 by March, marking the start of moderate exposure and reducing burn time to 30 minutes. With spring in full swing by April and May, the index climbs significantly to 6 and 7, respectively, signaling a high exposure risk where the burn time drops to just 25 minutes. The summer months of June and July see the UV Index peak at an intense 8, classified as very high, where even minimal sun exposure can be harmful in just 15 minutes. As the year winds down in autumn, the UV Index shifts back to lower levels, concluding with 1 again in December. For a detailed daily outlook and further insights into UV exposure throughout the year, be sure to check out the Rhondda UV Index.
UV Risk Categories
In January, the Rhondda valley experiences a modest 87 hours of sunshine, signaling the frosty grip of winter. As the season transitions, February brings a refreshing increase with 142 hours, hinting at the approaching spring. March continues this upward trend, basking in 205 hours of sunlight, while April shines even brighter with 320 hours, marking a significant shift towards longer, warmer days. The peak is reached in July with a dazzling 410 hours, showcasing the region's vibrant summer months. However, as autumn sets in, sunshine hours gradually decline, dropping to 128 hours in November and 104 hours in December, illustrating a clear seasonal ebb and flow in the Rhondda's sunny disposition. This cyclical pattern not only reflects the changing seasons but also paints a picture of the area's natural beauty throughout the year.
In Rhondda, United Kingdom, the likelihood of basking in sunny weather during January rests at a modest 18%. This percentage is consistent with the winter chill, as the sunniest months approach steadily with the arrival of spring. February sees a slight increase to 19%, hinting at the gradual transition towards brighter days. As we venture into the spring months, March offers a more encouraging 25%, while April nearly doubles that with 51%, marking a significant shift towards sunnier skies. This upward trend continues, contrasting sharply with the dreary winter months, and paints a picture of the sunny promise that awaits in the seasons to come.
In January, Rhondda experiences approximately 8 hours of daylight, marking the end of the winter solstice's twilight. As the month progresses toward spring, daylight begins to gradually increase, with February bringing around 9 hours and March further expanding to 11 hours. The shift becomes even more pronounced in April, where days lengthen to 13 hours, transitioning into the vibrant months of May and June, each boasting 15 and 16 hours of sunlight, respectively. This peak daylight duration continues through July before starting a gentle decline in August, where daylight decreases to 14 hours. As autumn approaches, sunlight wanes to 12 hours in September and further drops to 10 hours in October. The cycle continues into November and December, with daylight dwindling to an annual low of 7 hours, reminding Rhondda residents of the rhythmic ebb and flow of the seasons.
In January, the Rhondda Valley awakens to a gentle breeze, with an average wind speed of 4.2 m/s (9 mph). This marks a transition from the calmer days of late autumn, as the winds pick up noticeably going into February, when they reach 5.1 m/s (11 mph). As winter progresses, the winds become a bit more fickle, dipping to 3.3 m/s (7 mph) in April before oscillating around the 4 m/s mark through the budding spring months. This trend demonstrates how the winter's chill gives way to the unpredictable gusts of early spring, showcasing the dynamic nature of weather in Rhondda. By July, however, the winds start to mellow, averaging only 2.9 m/s (6 mph), indicating the arrival of warmer, calmer summer days before slightly reviving again in the autumn months. Overall, January's winds serve as a gentle prelude to the more blustery days ahead, setting the stage for the season's evolving dynamics.
The weather in Rhondda changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January'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.
When comparing the weather in January and February, we see notable differences in temperature and precipitation. January experiences a minimum temperature of -6°C (22°F) and an average of 4°C (40°F), while February offers slightly milder conditions, with a minimum of -5°C (23°F) and an average of 5°C (42°F). February also brings warmer maximum temperatures, reaching up to 16°C (60°F) compared to January's 13°C (55°F). However, February is wetter, with a total precipitation of 124 mm (4.9 in) over 16 days, compared to January's 82 mm (3.2 in) over 12 days. Both months maintain high humidity levels at 88%. For more details, you can check Rhondda weather in February.
In comparing the weather between January and March, we observe notable differences in temperature and precipitation patterns. January typically features a minimum of -6°C (22°F) and averages around 4°C (40°F), while March exhibits a slightly cooler minimum of -7°C (19°F) but a higher average temperature of 6°C (43°F) and a maximum of 19°C (66°F). Precipitation is also more significant in March, with 111 mm (4.4 in) falling over 17 days, compared to January's 82 mm (3.2 in) over just 12 days. Humidity levels remain relatively similar, with January at 88% and March at 86%. For more detailed weather information, visit Rhondda weather in March.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 13°C (55°F) and an average of 4°C (40°F). The month typically sees higher precipitation, with around 82 mm (3.2 in) spread over 12 days and a high humidity level of 88%. In contrast, April brings milder conditions, with temperatures ranging from -4°C (26°F) to a maximum of 21°C (70°F) and an average of 8°C (47°F). Precipitation decreases to 64 mm (2.5 in) over 10 days, and humidity slightly drops to 84%. The transition from January to April showcases a notable shift toward warmer temperatures and lighter rainfall. For more details, check out Rhondda weather in April.
January and May present a striking contrast in weather patterns. In January, temperatures typically range from a chilly -6°C (22°F) to a milder 13°C (55°F), with an average of 4°C (40°F), and the humidity sits at a high 88%. It also sees about 82 mm (3.2 in) of precipitation over 12 days. By May, the climate shifts significantly, with minimum temperatures around -1°C (31°F) and maximums rising to a pleasant 25°C (77°F), leading to an average of 11°C (52°F). The month experiences slightly higher precipitation at 93 mm (3.7 in) but over one additional day, with humidity decreasing to 80%. For more details on how May weather unfolds in Rhondda, check out Rhondda weather in May.
In January, the weather is characterized by chilly temperatures, with a minimum of -6°C (22°F) and an average of 4°C (40°F), reaching a maximum of 13°C (55°F). The month sees significant precipitation, totaling 82 mm (3.2 in) over about 12 days, accompanied by high humidity at 88%. In stark contrast, June offers a much warmer climate, featuring a minimum temperature of 5°C (41°F) and an average of 14°C (58°F), with highs potentially reaching 28°C (82°F). Although June has slightly higher precipitation at 91 mm (3.6 in) spread across 15 days, humidity decreases to 80%. For a more detailed look at June's weather, visit Rhondda weather in June.
January and July present strikingly different weather patterns. In January, temperatures can drop to a minimum of -6°C (22°F) and typically hover around an average of 4°C (40°F), peaking at a max of 13°C (55°F). The month experiences considerable precipitation, with about 82 mm (3.2 in) falling over 12 days, accompanied by high humidity levels at 88%. In contrast, July brings a much warmer climate with minimum temperatures around 6°C (42°F) and averages soaring to 16°C (61°F), reaching highs of 28°C (82°F). Though July has a slightly higher total precipitation of 93 mm (3.7 in) over 13 days, the humidity is significantly lower at 70%, making for a more comfortable summer experience. For more details, you can check Rhondda weather in July.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 13°C (55°F). This month experiences significant precipitation, totaling 82 mm (3.2 in) over around 12 days, accompanied by high humidity levels at 88%. In contrast, August brings milder temperatures, with a minimum of 5°C (42°F) and a maximum of 28°C (83°F), making it much more comfortable. Although August sees slightly higher precipitation at 114 mm (4.5 in) over about 17 days, the humidity is significantly lower at 73%. For more detailed information regarding weather in August, check Rhondda weather in August.
In January, the weather is notably colder, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 13°C (55°F) and an average of 4°C (40°F). The month experiences significant humidity at 88% and about 82 mm (3.2 in) of precipitation over 12 days. In stark contrast, September features milder temperatures with a minimum of 2°C (36°F), an average of 13°C (56°F), and a maximum of 27°C (81°F). While it sees slightly more precipitation at 92 mm (3.6 in) over 13 days, the humidity is lower at 79%. For more details, visit Rhondda weather in September.
In January, temperatures typically range from a chilly minimum of -6°C (22°F) to a more temperate maximum of 13°C (55°F), with an average of 4°C (40°F). This month sees around 82 mm (3.2 in) of precipitation over approximately 12 days, accompanied by high humidity levels at 88%. In contrast, October brings milder conditions with temperatures ranging from -2°C (28°F) to a comfortable high of 21°C (70°F), averaging around 10°C (51°F). However, October is wetter, with 143 mm (5.6 in) of rainfall spread over 15 days, and humidity slightly higher at 89%. These differences in weather patterns illustrate the transition from the cold depths of winter to the often damp and cool embrace of autumn. For more details, check out Rhondda weather in October.
In comparing January and November weather, January tends to be colder, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 13°C (55°F). The average temperature is around 4°C (40°F), and it experiences significant precipitation, totaling 82 mm (3.2 in) over about 12 days, with a humidity level of 88%. In contrast, November is slightly milder, with temperatures ranging from -3°C (26°F) to 15°C (59°F), and an average temperature of 7°C (45°F). It also has higher precipitation levels, with 117 mm (4.6 in) over 16 days and a humidity of 90%. For a more detailed look into November weather specifically, you can explore Rhondda weather in November.
In comparing the weather of January and December, both months exhibit similar low temperatures, with January averaging around 4°C (40°F) and December slightly warmer at 6°C (43°F). While January's maximum temperature reaches 13°C (55°F), December's maximum is just below at 12°C (54°F). However, January experiences less precipitation, with 82 mm (3.2 in) over 12 days, compared to December's 144 mm (5.7 in) over 18 days. The humidity is slightly lower in January at 88%, compared to December's 89%, indicating a marginally drier atmosphere. For more detailed insights into December weather, check out Rhondda weather in December.
As January settles over Rhondda, the weather starkly contrasts the milder months that precede and follow it. With an average temperature hovering around a chilly 4°C, this month embodies winter's grasp, marked by significant precipitation on about half the days. The dampness, accentuated by nearly 90% humidity, creates a moody yet picturesque landscape, ideal for cozy indoor pursuits. While the beautiful valleys may seem subdued, they gain a tranquil charm, reminding us of nature's resilience. For a deeper understanding of how Rhondda's January weather compares to the rest of the year, visit Rhondda Climate.