Last updated: March 17, 2025
In October, Merthyr Mawr, United Kingdom, experiences a diverse range of weather conditions that reflect the transition into autumn. The maximum temperature can reach a comfortable 21°C (70°F), while the average settles around 12°C (54°F), revealing the coolness of the season. Nights can dip as low as 1°C (33°F), making warm clothing essential. This month is marked by significant precipitation, with an impressive 146 mm (5.7 in) of rain spread over 17 days, contributing to the area's lush landscapes. Coupled with a high humidity level of 89%, the weather in Merthyr Mawr is often damp, encouraging a cozy, introspective atmosphere perfect for enjoying the natural beauty and vibrant autumn hues.
As October unfolds in Merthyr Mawr, the temperatures begin to reveal the changing season. With a min temperature of 1°C (33°F), it's the first hint of chill in the air, but it quickly warms up to a pleasant average of 12°C (54°F). The max temperature reaches a comfortable 21°C (70°F), providing ample opportunity to enjoy the stunning autumn landscapes. Compared to the warmer months of summer, October marks a noticeable shift, transitioning from highs in the upper 20s to a more moderate warmth. This month embodies a period of balance, where the crispness of fall mingles with the lingering warmth of summer, creating a perfect backdrop for strolls through the vivid autumn foliage.
October brings a significant increase in precipitation to Merthyr Mawr, with an impressive 146 mm (5.7 in) of rain recorded over 17 days. This marks a notable rise in both volume and frequency compared to the preceding months, as September's rainfall was a more moderate 92 mm (3.6 in) spread over just 12 days. The trend continues from the late summer months, where rainfall often increases, but October stands out as the wettest month of the year, setting the stage for the upcoming winter season. As autumn deepens, residents can expect the vibrant scenery of the surrounding landscapes to be refreshed by the abundant rainfall, highlighting the unique charm of this season in the United Kingdom.
October in Merthyr Mawr, United Kingdom, ushers in a notable shift in humidity, rising to 89% as the autumn air begins to settle. This increase follows a gradual descent from the summer months, where humidity dipped to a low of 70% in July before experiencing a slight uptick in August and September. As the leaves turn and temperatures cool, October's moisture levels not only reflect the onset of wetter weather but also set the stage for the winter months ahead, where humidity peaks at 90% in November. This trend underscores Merthyr Mawr's characteristic dampness, making it a quintessential feature of the region's climate.
As October rolls into Merthyr Mawr, the UV Index settles at a comfortable 4, indicating a moderate level of exposure. This marks a gradual decline from the summer months when UV levels peaked at 8, requiring only 15 minutes of unprotected sun exposure before risk sets in. The pattern observed throughout the year reveals a striking transition from the low indices in winter to significant increases during the sunnier months. By October, the burn time extends back to 30 minutes, providing a more forgiving window for outdoor activities. As the days grow shorter and cooler, residents and visitors can enjoy the outdoors while staying mindful of sun safety. For more details on UV levels, check out the Merthyr Mawr UV Index.
UV Risk Categories
In the picturesque village of Merthyr Mawr, October casts a soft glow with an average of 233 sunshine hours, making it a delightful time to explore the area. While the summer months bask in glory, peaking at 410 hours in July, autumn brings a more tempered brightness. This transitional month marks a noticeable decline from the lively days of late summer yet holds onto a vibrant ambiance that still invites outdoor adventures. As the days shorten and the crispness of fall settles in, October's sunshine serves as a gentle reminder of the seasonal shift, contrasting with the dwindling hours of November and December, which see only 128 and 104 hours respectively. This trend beautifully illustrates how Merthyr Mawr gracefully balances its sunny spells throughout the year, paving the way for the cozy embrace of winter.
In Merthyr Mawr, the likelihood of sunny weather in October exhibits a noticeable dip, with a 21% chance of sunshine that marks one of the lower points of the year. This trend aligns with the gradual decline in sun chances as autumn deepens, particularly when compared to the 54% sunshine probability in April. After the vibrant spring and early summer months, which boast significantly higher percentages, October's skies often turn cloudy as the days grow shorter. With only a slight increase to 30% in November, it's clear that October represents a transitional phase, where the remnants of sunny days fade into the chill of winter, inviting a cozy indoor atmosphere.
In Merthyr Mawr, October marks a transition as daylight begins to retreat after the bright summer months. With an average of 10 hours of sunlight, October serves as a gentle reminder of the changing seasons, following September's longer days. The gradual decrease from 16 hours in June and July signals the approach of winter, as each month leading up to October saw increasing daylight. This month acts as a buffer, easing into the shorter days of November and December, which both return to just 8 hours of daylight. As autumn unfolds, the golden hues of October light create a picturesque backdrop, contrasting with the dwindling daylight that lies ahead.
As October rolls in, Merthyr Mawr experiences a noticeable increase in wind speed, averaging 5.1 m/s (11 mph), similar to the breezy conditions of March. This change marks a departure from the calmer summer months, where July and June recorded their lowest averages of 3.5 m/s (8 mph) and 3.6 m/s (8 mph), respectively. The crisp autumn air stirs to life, nudging leaves from their branches and signaling the transition to winter. Following October, the wind picks up again in November before reaching its peak in December at 5.7 m/s (13 mph). This natural ebb and flow not only defines the local climate but also sets the stage for the enchanting landscape of Merthyr Mawr, where nature's rhythm dances with the seasons.
The weather in Merthyr Mawr changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October'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.
October and January present distinctly different weather patterns. In October, temperatures range from a minimum of 1°C (33°F) to a pleasant maximum of 21°C (70°F), with an average of 12°C (54°F). The month is characterized by relatively high precipitation of 146 mm (5.7 in) over 17 days, coupled with high humidity at 89%. In contrast, January experiences colder conditions, with temperatures ranging from -3°C (28°F) to a maximum of 13°C (56°F), averaging 6°C (43°F). Precipitation is less frequent, totaling 83 mm (3.3 in) over 12 days, and humidity remains similar at 88%. For more detailed weather insights, check Merthyr Mawr weather in January.
When comparing the weather in October and February, notable differences emerge. October typically experiences milder temperatures, ranging from a minimum of 1°C (33°F) and averaging around 12°C (54°F), with highs reaching 21°C (70°F). In contrast, February sees cooler temperatures, with a minimum of -3°C (26°F) and an average of 6°C (44°F), peaking at 15°C (59°F). Precipitation levels are also significant; October receives 146 mm (5.7 in) over about 17 days, while February has slightly lower precipitation at 111 mm (4.4 in) across 15 days. Humidity remains fairly consistent between the two months, with October at 89% and February slightly lower at 88%. For a more detailed overview of February weather, check out Merthyr Mawr weather in February.
When comparing the weather in October and March, several differences and similarities emerge. October experiences milder temperatures, with an average of 12°C (54°F) and a maximum of 21°C (70°F), while March is chillier, with an average temperature of 7°C (45°F) and a cooler minimum of -5°C (23°F). Precipitation levels are moderately high in both months, with October receiving 146 mm (5.7 in) over 17 days and March experiencing 101 mm (4.0 in) over the same number of days, indicating a similar frequency of rainy days. Humidity remains slightly higher in October at 89% compared to 86% in March, contributing to a more damp atmosphere. For those interested in the specific conditions during March, more details can be found here: Merthyr Mawr weather in March.
When comparing the weather in October and April, notable differences emerge. October typically features a broader temperature range, with averages around 12°C (54°F) and maximums reaching 21°C (70°F), while April's average is cooler at 9°C (49°F) and peaks at 20°C (68°F). Precipitation is significantly higher in October, with 146 mm (5.7 in) expected over 17 days, compared to April's 56 mm (2.2 in) across only 10 days. Additionally, humidity levels in October are slightly higher at 89%, compared to April's 84%. For more specific insights, you can check Merthyr Mawr weather in April.
When comparing the weather in October and May, October tends to be cooler with temperature highs reaching only 21°C (70°F), while May can warm up to 24°C (75°F). Both months have an average temperature of around 12°C (54°F), but October experiences more precipitation, receiving 146 mm (5.7 in) over 17 days, compared to May's 80 mm (3.2 in) over 12 days. Additionally, October has a higher humidity level at 89%, compared to 80% in May, making it feel a bit more damp during the fall. For more detailed insights into the conditions during this time, you can check Merthyr Mawr weather in May.
When comparing the weather in October and June, there are notable differences in temperature and precipitation. October experiences a larger temperature range, with minimums dropping to around 1°C (33°F) and maximums reaching 21°C (70°F), while June remains milder, with minimums at 7°C (45°F) and maximums peaking at 27°C (81°F). Additionally, October sees significantly more rainfall, with 146 mm (5.7 in) over 17 days, compared to June's 85 mm (3.3 in) over just 13 days. Humidity levels are also higher in October at 89%, compared to June's 80%, giving October a distinctly cooler and wetter feel. For more detailed information about June weather, you can check Merthyr Mawr weather in June.
In comparing the weather between October and July, it's clear that October tends to be much cooler and wetter. October features a temperature range with a minimum of 1°C (33°F) and a maximum of 21°C (70°F), averaging around 12°C (54°F), while July offers milder conditions, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F) and averaging 17°C (63°F). Precipitation is also notably higher in October, with 146 mm (5.7 in) over 17 days compared to July's 86 mm (3.4 in) over just 12 days. Moreover, October's humidity is significantly higher at 89%, compared to the 70% recorded in July. For a detailed look at July weather, feel free to check out Merthyr Mawr weather in July.
When comparing the weather in October to that of August, several notable differences emerge. October brings cooler temperatures, with a minimum of 1°C (33°F) and an average of 12°C (54°F), while August is warmer, featuring a minimum of 9°C (48°F) and an average of 16°C (62°F). Additionally, October experiences higher precipitation, with 146 mm (5.7 in) over 17 days, compared to August's 106 mm (4.2 in) on 16 days. The humidity level also rises significantly in October at 89%, compared to August's more comfortable 73%. For more detailed information, you can check out Merthyr Mawr weather in August.
October weather tends to be noticeably cooler than September, with average temperatures dropping from 15°C (59°F) in September to 12°C (54°F) in October. The minimum temperature in October can reach as low as 1°C (33°F), contrasting sharply with September's milder low of 5°C (41°F). Additionally, October experiences more precipitation, totaling 146 mm (5.7 in) across 17 days, compared to 92 mm (3.6 in) over 12 days in September. The humidity also increases in October, averaging 89% compared to 79% in September, contributing to a more damp and chilly atmosphere. For a more detailed view of September weather, you can check Merthyr Mawr weather in September.
October and November exhibit notable differences in weather patterns, particularly in temperature and precipitation. October tends to be warmer, with average temperatures ranging from 1°C (33°F) to a maximum of 21°C (70°F), while November experiences cooler conditions, with temperatures dropping to a minimum of -1°C (31°F) and peaking at 16°C (60°F). Precipitation is prevalent in both months, but October sees a higher total of 146 mm (5.7 in) over 17 days compared to November's 111 mm (4.4 in) over 16 days. Additionally, humidity remains relatively high in both months, with November slightly edging out at 90% compared to October's 89%. For a more detailed look at the weather specifics, check out Merthyr Mawr weather in November.
In comparing the weather of October and December, we see a notable shift in temperatures and conditions. October welcomes milder weather with average temperatures ranging from 1°C (33°F) at night to 21°C (70°F) during the day, while December brings cooler temperatures, with daytime highs averaging only 13°C (55°F) and nighttime lows dipping to -2°C (29°F). Both months experience similar precipitation levels, with October slightly higher at 146 mm (5.7 in) over 17 days compared to December's 144 mm (5.7 in) over 18 days. Humidity remains consistent at 89% for both months, contributing to the dampness often felt during this transition into winter. For more details on December weather specifically, you can visit Merthyr Mawr weather in December.
As October arrives in Merthyr Mawr, the weather showcases a striking transition from the balmy summer months to the cooler, more unpredictable autumn climate. With an average temperature dipping to a refreshing 12°C, residents can expect the crispness of fall along with bouts of rainfall, averaging 146 mm over 17 days. This month is characterized by relatively high humidity levels at 89%, creating a distinctly damp atmosphere. In contrast to the previous months’ warmth, October invites a shift that inspires cozy attire and the beauty of changing leaves. For more details on what to expect year-round, visit Merthyr Mawr Climate.