Last updated: March 17, 2025
January in Merthyr Mawr, United Kingdom, is characterized by a cool and damp climate. The month features a maximum temperature of 13°C (56°F), with an average hovering around 6°C (43°F), while chilly nights can drop to a minimum of -3°C (28°F). With 83 mm (3.3 in) of rain over 12 days, residents and visitors alike can expect a wet month, accompanied by a high humidity level of 88% that adds to the crisp winter atmosphere. This weather pattern creates a unique backdrop for exploring the natural beauty of this scenic location.
In January, Merthyr Mawr experiences a crisp winter climate, with temperatures typically ranging from a chilly -3°C (28°F) to a mild 13°C (56°F). The average temperature sits around 6°C (43°F), providing a clear indication of the cold spell that marks the beginning of the year. As the month progresses into February, these temperatures barely shift, with similar lows and average highs, hinting at a slow transition out of winter. By March, spring begins to make an appearance; although the minimum dips slightly lower to -5°C (23°F), the maximum climbs to a pleasant 18°C (64°F), suggesting a gradual warming trend. This pattern of increasing temperatures continues into April and May, culminating in significant warmth by the time summer rolls around in June. In short, January stands as a stark reminder of winter's grip in Merthyr Mawr, providing a contrast to the warmer days just around the corner.
In January, Merthyr Mawr experiences a notable start to the year with 83 mm (3.3 in) of precipitation spread over approximately 12 days. This marks the beginning of a trend where winter months are characterized by significant rainfall, leading into a wetter February. Following January, the precipitation increases to 111 mm (4.4 in) in February, peaking once more in October with an impressive 146 mm (5.7 in). As the seasons change, there’s a gradual decline in rainfall, with April showing the least at 56 mm (2.2 in). Notably, January's rainfall sets the tone for the year ahead, illustrating a pattern of fluctuating precipitation, with late autumn months typically bringing the heaviest showers. This rhythm of wet and dry days exemplifies the dynamic weather Merthyr Mawr endures, consistently influencing the lush landscapes of this charming region.
In January, Merthyr Mawr experiences a high humidity level of 88%, a trend that persists through February. This persistent moisture sets the stage for the winter months, with humidity beginning to gradually decline as spring approaches, reaching 86% in March and further dropping to 84% by April. As the year progresses into the warmer months, humidity levels stabilize around 80% during May and June, before dropping dramatically to 70% in July. However, the summer respite from moisture is short-lived, as humidity rises again to 73% in August and begins a gradual climb towards the year’s end, peaking at 90% in November before again falling to 89% in October and December. This cyclical pattern highlights the region’s notable humidity variations, creating a rich and lush environment throughout the year.
In January, Merthyr Mawr experiences a relatively mild UV Index of 1, classifying the exposure level as low with a burn time of 45 minutes. This trend of low UV exposure continues into February, maintaining a UV Index of 2. As spring approaches, the UV Index rises significantly, peaking at 4 in March, suggesting the onset of moderate sun exposure, and then climbing to 6 and 7 in April and May, respectively, indicating higher risk levels. The summer months of June and July see a dramatic increase, reaching 8—a very high exposure category—with burn times dropping to just 15 minutes. As summer wanes into August and September, the UV Index gradually decreases but remains in the high category. By October, it dips back to a moderate 4 before falling once more to 2 in November and returning to 1 in December, ultimately showcasing a clear seasonal pattern in UV exposure throughout the year. For detailed insights, visit Merthyr Mawr UV Index.
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In January, Merthyr Mawr experiences a modest 87 hours of sunshine as the year begins, setting a tone of gentle brightness that gradually increases into February with 142 hours. This upward trend continues through the spring, peaking spectacularly in April at 320 hours, reflecting the invigorating arrival of longer days. As summer rolls in, May and July bask in the sun's embrace with 393 hours and 410 hours respectively, making them the sunniest months of the year. However, the golden rays start to diminish by August, which still enjoys a healthy 362 hours, before transitioning to the cooler, cloudier months of autumn. September and October retain a fair amount of sunshine at 296 and 233 hours, but by November and December, the daylight dwindles to 128 and 104 hours. This rhythmic pattern of sunshine not only highlights Merthyr Mawr's seasonal changes but also invites residents and visitors alike to embrace the vibrant outdoors, especially during the sun-soaked summer months.
In Merthyr Mawr, January brings a modest 22% chance of sunny weather, setting the tone for a month still gripped by winter's chill. As the year progresses, the likelihood of sunshine gradually increases, peaking in April at an encouraging 54%. From winter to spring, there's a notable upward trend: February offers a slight improvement with a 23% chance, while March sees a jump to 30%. However, the sun takes a brief step back in some summer months, notably July at 41%, before slipping to 27% in June. Ultimately, while the beginning of the year may feel a bit grey, the promise of brighter days lies just around the corner as spring unfolds.
In January, residents of Merthyr Mawr, United Kingdom, experience about 8 hours of daylight, marking the month as one of the darker times of the year. As the seasons shift into February, daylight begins to lengthen, reaching 9 hours, and the trend continues through spring, with March enjoying 11 hours of sunlight and April basking in 13 hours. By May, the days stretch further to 15 hours, peaking at an impressive 16 hours in both June and July, providing ample opportunity for outdoor activities. As summer slowly fades into autumn, the daylight gradually recedes, falling to 14 hours in August and tapering to 10 hours by the end of October. November mirrors January with just 8 hours of light, closing the year with December's shortest days at only 7 hours. This cyclical pattern emphasizes the seasonal transitions in daylight, enhancing the charm and rhythm of life in this picturesque locale.
In January, Merthyr Mawr experiences an average wind speed of 5.3 m/s (12 mph), marking a notable start to the year. As the winter months progress, the wind picks up slightly in February to 6.0 m/s (13 mph), before easing back to 5.1 m/s in March. This month marks a transitional phase, where the winds begin to soften with the approach of spring, dropping to 3.9 m/s (9 mph) in April and reaching their calmest point in June at 3.6 m/s (8 mph). The summer months maintain relatively gentle breezes, with July and August sitting around 3.5 m/s (8 mph) and 4.4 m/s (10 mph), respectively. Interestingly, as autumn arrives, there's a noticeable uptick, returning to 5.1 m/s in October and peaking again in December at 5.7 m/s (13 mph). Overall, while January kicks off the year with a moderate breeze, it's clear that the winds in Merthyr Mawr fluctuate seasonally, with both winter and autumn sparking a resurgence of stronger gusts.
The weather in Merthyr Mawr 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 Merthyr Mawr and find detailed weather information for every month.
January and February exhibit quite similar temperature ranges, with both months experiencing minimum temperatures around -3°C (28°F) and average temperatures hovering around 6°C (43-44°F). However, February tends to be slightly milder at its maximum, reaching 15°C (59°F) compared to January's 13°C (56°F). Precipitation also increases in February, with a total of 111 mm (4.4 in) over 15 days, compared to January's 83 mm (3.3 in) over 12 days, indicating that February is both wetter and enjoys marginally warmer conditions overall. Humidity remains consistent at 88% for both months. For more detailed information on February weather in this region, you can visit Merthyr Mawr weather in February.
January's weather in Merthyr Mawr is generally colder, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 13°C (56°F) and an average of 6°C (43°F). The month experiences significant precipitation, totaling 83 mm (3.3 inches) over about 12 days, alongside high humidity levels at 88%. In contrast, March sees slightly milder conditions, with a minimum temperature of -5°C (23°F) and a maximum of 18°C (64°F), averaging 7°C (45°F). However, precipitation increases to 101 mm (4.0 inches) spread over 17 days, while humidity remains relatively high at 86%. For more details, you can check Merthyr Mawr weather in March.
In January, the weather is notably colder, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 13°C (56°F) and an average of 6°C (43°F). The month also experiences significant precipitation, averaging 83 mm (3.3 in) over 12 days, coupled with high humidity levels at 88%. In contrast, April brings a milder climate with temperatures ranging from -1°C (30°F) to 20°C (68°F), averaging 9°C (49°F). Precipitation decreases to 56 mm (2.2 in) over 10 days, and humidity slightly lowers to 84%. This shift in weather signifies a transition from the chill of winter to the warming trends of spring. For more detailed information, you can check Merthyr Mawr weather in April.
In January, temperatures typically range from a chilly -3°C (28°F) to a mild 13°C (56°F), with an average of 6°C (43°F). The month experiences considerable precipitation, totaling 83 mm (3.3 in) over about 12 days, and a high humidity level of 88%. In contrast, May brings significantly warmer conditions, with minimum temperatures of 2°C (36°F) and maximums reaching up to 24°C (75°F), averaging 12°C (54°F). Precipitation levels are slightly lower at 80 mm (3.2 in), also occurring over 12 days, but humidity drops to 80%. For more insights into the delightful weather during this blooming month, check out Merthyr Mawr weather in May.
January and June present a stark contrast in weather conditions. In January, temperatures range from a chilly -3°C (28°F) at night to a mild 13°C (56°F) during the day, with an average of 6°C (43°F). This month is characterized by high humidity levels at 88% and 83 mm of precipitation spread over 12 days, making it one of the wettest months. Conversely, June enjoys milder temperatures with a minimum of 7°C (45°F) and a maximum of 27°C (81°F), averaging around 15°C (60°F). Although the precipitation total is similar at 85 mm with rainfall across 13 days, the humidity drops to 80%. For those interested in more details, check out the Merthyr Mawr weather in June.
In January, the weather is quite chilly with temperatures ranging from a low of -3°C (28°F) to a high of 13°C (56°F), while average temperatures hover around 6°C (43°F). The month sees a fair amount of precipitation, totaling 83 mm (3.3 in) across 12 days, accompanied by high humidity at 88%. In contrast, July offers a much warmer climate, with temperatures starting at 9°C (48°F) and reaching up to 27°C (81°F), resulting in a pleasant average of 17°C (63°F). Precipitation remains similar at 86 mm (3.4 in) over 12 days, but the humidity drops to a more comfortable 70%. For a closer look at what to expect during July, visit Merthyr Mawr weather in July.
In January, the weather is quite cold, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 13°C (56°F) and an average of 6°C (43°F). This month also sees significant precipitation, totaling 83 mm (3.3 in) over about 12 days, accompanied by high humidity at 88%. In contrast, August welcomes warmer and more temperate conditions, with temperatures varying from a minimum of 9°C (48°F) to a maximum of 28°C (82°F) and an average of 16°C (62°F). Although August experiences slightly more precipitation at 106 mm (4.2 in) over 16 days, the humidity drops to 73%, making the weather feel much less oppressive. For more details on the weather during this time, you can check Merthyr Mawr weather in August.
In comparing the weather between January and September, we see a significant shift in temperature and humidity. January experiences cooler temperatures with a minimum of -3°C (28°F) and an average of 6°C (43°F), while September boasts milder conditions, starting at a minimum of 5°C (41°F) and averaging around 15°C (59°F). The maximum temperatures in January peak at 13°C (56°F), whereas in September, they can soar to 27°C (80°F), indicating a notable increase in warmth. Additionally, both months receive similar levels of precipitation, with January slightly lower at 83 mm (3.3 in) compared to September’s 92 mm (3.6 in), although both see rain for about 12 days. The humidity also drops from January’s 88% to September’s 79%, adding to the perception of greater comfort in autumn. For more details, you can check Merthyr Mawr weather in September.
When comparing the weather in January and October, notable differences emerge. January typically experiences colder temperatures, with a minimum of -3°C (28°F) and a maximum of 13°C (56°F), while October offers milder conditions, ranging from a minimum of 1°C (33°F) to a maximum of 21°C (70°F). Additionally, October sees a higher level of precipitation, totaling 146 mm (5.7 in) over 17 days, compared to January's 83 mm (3.3 in) across 12 days. Humidity remains similar in both months, hovering around 88% in January and 89% in October. For more detailed information, you can check out Merthyr Mawr weather in October.
In comparing the weather between January and November, January tends to be colder with average temperatures ranging from -3°C (28°F) to a maximum of 13°C (56°F), whereas November experiences milder temperatures with a range from -1°C (31°F) to a high of 16°C (60°F). Additionally, November receives more precipitation, accumulating 111 mm (4.4 in) over 16 days, compared to January's 83 mm (3.3 in) over 12 days. Humidity levels are slightly higher in November at 90%, in contrast to January's 88%. For more detailed insights, you can check Merthyr Mawr weather in November.
In comparing the weather of January and December, both months experience cool temperatures, with January averaging around 6°C (43°F) and December slightly warmer at 7°C (45°F). The minimum temperatures are quite similar, with January dipping to -3°C (28°F) and December to -2°C (29°F). However, January tends to be drier, receiving only 83 mm (3.3 in) of precipitation over 12 days, while December is wetter, with 144 mm (5.7 in) falling over 18 days. Humidity levels are comparable, sitting at around 88% in January and 89% in December. For a closer look at December's weather conditions, you can visit Merthyr Mawr weather in December.
As January wraps Merthyr Mawr in chilly air, it stands out from the milder months with its chilly temperatures and frequent rain. The landscape often drapes itself in a subtle blanket of moisture, as the area experiences high humidity and a notable amount of rainfall on twelve days throughout the month. This blend of cool breezes and damp conditions contrasts sharply with the warmer, drier months ahead, making January a unique time for locals and visitors alike to appreciate the serene beauty of the winter scenery. For more details on how this time of year shapes the atmosphere, explore the data at Merthyr Mawr Climate.