August Weather in Merthyr Mawr, United Kingdom

Last updated: March 17, 2025

In August, Merthyr Mawr, United Kingdom, experiences a vibrant blend of summer warmth and frequent showers. With maximum temperatures peaking at 28°C (82°F) and an average of 16°C (62°F), visitors can enjoy pleasant days amidst the lush landscape. However, the minimum temperatures dip to a cool 9°C (48°F), reminding us that summer nights can be crisp. Rainfall is significant, with 106 mm (4.2 in) accumulating over 16 days, contributing to the region's lush greenery. The humidity levels hover around 73%, adding to the rich atmospheric experience. Embrace the unpredictable charm of Merthyr Mawr this August, where sunshine meets showers in a beautifully British fashion.

August Temperature in Merthyr Mawr

In August, Merthyr Mawr enjoys a delightful blend of warmth and mildness, with temperatures typically ranging from a comfortable 9°C (48°F) at night to a sunny high of 28°C (82°F) during the day. This marks the peak of summer, as the average temperature settles at a pleasant 16°C (62°F). Compared to the cooler months earlier in the year, August stands out with significantly higher maximum temperatures, indicating a clear upward trend in warmth as summer progresses. This inviting climate not only makes outdoor activities appealing but also highlights the shift toward the cooler autumn months that follow. Overall, August in Merthyr Mawr encapsulates the essence of summer, offering a perfect backdrop for exploring its stunning landscapes.

August Weather in Merthyr Mawr: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Merthyr Mawr, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434345495459636258544845
Data source: Temperature data for Merthyr Mawr generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Merthyr Mawr

August in Merthyr Mawr brings an average precipitation of 106 mm (4.2 in), marking it as one of the wetter months of the year. With 16 days of rain, this increases the likelihood of experiencing typical British weather, immersing the area in lush greenery. Interestingly, August’s rainfall slightly trumps the preceding months of June and July, which collected 85 mm (3.3 in) and 86 mm (3.4 in) respectively. This uptick precedes the even higher precipitation levels seen in autumn, with October averaging the highest at 146 mm (5.7 in). Overall, August serves as a bridge between the summer's relative dryness and the forthcoming wet months, showcasing Merthyr Mawr's diverse climate.

August Precipitation Trends in Merthyr Mawr

The chart displays monthly precipitation patterns in Merthyr Mawr, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec831111015780858610693146111144
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Merthyr Mawr

In August, Merthyr Mawr experiences a slight uptick in humidity, averaging around 73%, which marks a mild increase from the 70% seen in July. This period typically represents a transition towards the wetter months, with humidity levels still significantly lower than the winter peaks. Notably, this summer month contrasts sharply with the wet and humid conditions of late autumn, where humidity levels soar above 89%. As the year progresses, humidity trends reveal a gradual decrease during the warmer months, from January's high of 88% down to July's lower figures, before beginning to climb again in the autumn. This cyclical pattern showcases the region's maritime climate and its influence on seasonal humidity variations.

August Average Humidity in Merthyr Mawr

This chart illustrates the average monthly humidity levels in Merthyr Mawr, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Merthyr Mawr

In August, Merthyr Mawr experiences a UV Index of 7, indicating a high exposure category that calls for caution under the ample summer sun. With a burn time of just 25 minutes, it’s clear that even during the warmer months, the potential for skin damage remains significant. Interestingly, this slight decline from the very high UV Index seen in June and July suggests that while the summer is still in full swing, the sun’s intensity begins to wane as autumn approaches. As you enjoy outdoor activities, it's essential to stay protected; for further insights on UV levels throughout the year, check out Merthyr Mawr UV Index.

Maximum UV Index Levels in Merthyr Mawr for August

The chart shows the monthly maximum UV Index (UVI) for Merthyr Mawr in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Merthyr Mawr August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Merthyr Mawr

In the idyllic village of Merthyr Mawr, August basks in an impressive 362 hours of sunshine, a testament to the peak of summer. This month marks a delightful transition from July, which boasts the highest sunshine total of 410 hours, as the weather begins to mellow slightly. The trend shows a powerful surge in sunlight from the winter months, where January only sees 87 hours, gradually building to a radiant crescendo in mid-summer. As the days of August eventually yield to the crisp air of September, which records 296 hours, there's a palpable essence of warmth and vibrancy that characterizes this beautiful corner of the United Kingdom, making the late summer days truly memorable.

Monthly Sunshine Duration in Merthyr Mawr: August Highlighted

The August sunshine duration represents the total number of hours Merthyr Mawr experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec87h142h205h320h393h373h410h362h296h233h128h104h
Data source: Merthyr Mawr August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Merthyr Mawr During August

In August, the likelihood of sunny weather in Merthyr Mawr stands at 32%, slightly lower than the previous month’s 41% in July. This drop mirrors a broader trend as summer transitions into autumn, with sunshine peaks typically occurring in the warmth of June and July. While August still offers a fair chance of sun, it is a reminder that the British summer can be fleeting. Comparatively, the sunniest month in Merthyr Mawr is April, boasting a robust 54% chance, suggesting that early summer holds more promise for bright days. However, August's sun-filled moments are still worth savoring amidst the gradual shift towards cooler, cloudier weather.

Percentage of Sunny Days in August in Merthyr Mawr

The chart illustrates the percentage of sunny days in Merthyr Mawr throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Merthyr Mawr experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%23%30%54%33%27%41%32%28%21%30%20%
Data source: Merthyr Mawr August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Merthyr Mawr in August

In August, Merthyr Mawr, United Kingdom, enjoys a generous 14 hours of daylight, a delightful continuation of the summer's brightness. As the year progresses from January's modest 8 hours, the days gradually lengthen, peaking in June and July with 16 hours of sunlight. However, as August unfolds, daylight begins to taper off, signaling the transition into the cooler autumn months. This trend reveals not only a vibrant summer but also a gentle reminder of the seasons' cyclical nature, as September follows with 12 hours of light. The gradual decline from the summer's peak offers a beautiful opportunity to appreciate the rich, golden hues of late summer days in Merthyr Mawr.

Average Daylight Hours in Merthyr Mawr for August

The chart illustrates the variation in daylight duration in Merthyr Mawr throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 55m13h 54m15h 39m16h 33m16h 4m14h 30m12h 35m10h 36m8h 49m7h 52m
Data source: Merthyr Mawr daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Merthyr Mawr

In August, the winds in Merthyr Mawr pick up slightly, averaging around 4.4 m/s (10 mph), which adds a refreshing touch to the summer atmosphere. This month's wind speed sits comfortably above the low of 3.5 m/s (8 mph) seen in both July and June, suggesting a subtle shift as the summer begins to transition into autumn. Trend-wise, this uptick is mirrored by a notable increase heading into the fall months, where October reverts back to 5.1 m/s (11 mph). Overall, though August offers gentler breezes compared to the brisker winds of winter, it still provides a pleasant respite for outdoor activities amidst the lingering warmth of summer.

Average August Wind Speed in Merthyr Mawr

The chart displays monthly wind speed patterns in Merthyr Mawr, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.36.05.13.94.93.63.54.4 m/s3.85.14.45.7
Data source: Merthyr Mawr August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Merthyr Mawr Compares to Other Months

The weather in Merthyr Mawr changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August'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.

In comparing the weather of August and January, there is a stark contrast in temperature and overall climate. August enjoys milder conditions with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), resulting in an average of 16°C (62°F). However, it is also relatively wet, with 106 mm (4.2 in) of precipitation over 16 days and a humidity level of 73%. Conversely, January is much colder, with temperatures dropping as low as -3°C (28°F) and peaking at 13°C (56°F), averaging only 6°C (43°F). The precipitation in January is lower at 83 mm (3.3 in) spread over 12 days, accompanied by higher humidity at 88%. For more detailed insights into January weather specifics, check out Merthyr Mawr weather in January.

August and February present quite contrasting weather conditions. In August, temperatures range from a mild 9°C (48°F) to a pleasant 28°C (82°F), with an average of 16°C (62°F) and relatively lower humidity at 73%. The month experiences about 106 mm (4.2 in) of precipitation over 16 days, making it a wetter season but still inviting for outdoor activities.

In contrast, February is characterized by colder temperatures, with a minimum of -3°C (26°F) and a maximum of 15°C (59°F), averaging around 6°C (44°F). It sees slightly more precipitation at 111 mm (4.4 in) across 15 days, coupled with higher humidity levels at 88%. This creates a distinctly chillier and damp atmosphere. For more details on February weather, refer to Merthyr Mawr weather in February.

In comparing the weather between August and March, we observe notable differences in temperature and humidity levels. August brings warmer conditions with average temperatures ranging from 9°C (48°F) to 28°C (82°F) and a moderate humidity of 73%. In contrast, March experiences a chillier climate, with temperatures fluctuating between -5°C (23°F) and 18°C (64°F) and higher humidity at 86%. Precipitation is quite similar in both months, with August seeing 106 mm (4.2 in) over 16 days and March recording 101 mm (4.0 in) across 17 days. For those interested in specific weather details for March, you can find more information here: Merthyr Mawr weather in March.

When comparing the weather in August and April, notable differences emerge. August features a milder range of temperatures, with a minimum of 9°C (48°F), an average of 16°C (62°F), and a maximum of 28°C (82°F), making it significantly warmer than April. In contrast, April's temperatures range from a chilly -1°C (30°F) to a comfortable 20°C (68°F), with an average of 9°C (49°F). Precipitation is also higher in August, with 106 mm (4.2 in) over 16 days, compared to April's 56 mm (2.2 in) across 10 days. Additionally, humidity levels are slightly lower in August at 73%, while April sees a higher humidity rate of 84%. For more detailed weather information, you can refer to Merthyr Mawr weather in April.

In comparing the weather of August and May, August generally enjoys warmer temperatures, with an average of 16°C (62°F) and maximums reaching up to 28°C (82°F), while May’s temperatures peak at a maximum of 24°C (75°F) with an average of 12°C (54°F). August also experiences more precipitation, totaling 106 mm (4.2 in) over 16 days, compared to May's 80 mm (3.2 in) across 12 days. Humidity levels are slightly lower in August at 73%, while May sees a higher humidity of 80%. For a detailed look at May's weather in this region, you can check Merthyr Mawr weather in May.

When comparing the weather in August and June, both months present mild temperatures but with notable differences. August sees slightly warmer averages, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), compared to June's range of 7°C (45°F) to 27°C (81°F). Precipitation is also higher in August, with 106 mm (4.2 in) falling over 16 days, whereas June experiences 85 mm (3.3 in) over 13 days. Additionally, humidity is slightly lower in August at 73%, compared to June's 80%. For a more detailed look at June's conditions, you can visit Merthyr Mawr weather in June.

When comparing the weather between July and August, July typically has slightly warmer temperatures, with an average of 17°C (63°F) compared to August's 16°C (62°F). The maximum temperature in July reaches 27°C (81°F), which is just one degree cooler than August's maximum of 28°C (82°F). However, August has more substantial rainfall, totaling 106 mm (4.2 in) over 16 days, compared to July's 86 mm (3.4 in) over 12 days. Additionally, August experiences a higher humidity level at 73%, while July has a relatively lower humidity of 70%. For more detailed weather information, you can check Merthyr Mawr weather in July.

August and September exhibit distinct weather patterns, perfect for those who appreciate seasonal transitions. In August, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average temperature of 16°C (62°F). This month also experiences higher precipitation, totaling 106 mm (4.2 in) over 16 days, coupled with a humidity level of 73%. Conversely, September sees a slight drop in temperatures, with a minimum of 5°C (41°F), an average of 15°C (59°F), and a maximum of 27°C (80°F). The precipitation decreases to 92 mm (3.6 in) across 12 days, while humidity rises to 79%. For a more detailed look at September's weather, check out Merthyr Mawr weather in September.

August and October present notable differences in weather patterns. In August, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average of 16°C (62°F). The month sees 106 mm (4.2 in) of precipitation over 16 days, alongside a humidity level of 73%. In contrast, October features cooler conditions, with temperatures dipping to a minimum of 1°C (33°F) and averaging 12°C (54°F), peaking at 21°C (70°F). Rainfall increases to 146 mm (5.7 in) across 17 days, and humidity rises to 89%. For a detailed look at what to expect, visit Merthyr Mawr weather in October.

August and November present distinctly different weather conditions. In August, temperatures range from a pleasant 9°C (48°F) at night to a warm 28°C (82°F) during the day, with an average of 16°C (62°F). Although August experiences 106 mm (4.2 in) of precipitation over 16 days, the humidity is relatively moderate at 73%. In contrast, November sees a significant drop in temperatures, with a minimum of -1°C (31°F) and a maximum of only 16°C (60°F), averaging around 9°C (48°F). Precipitation increases slightly to 111 mm (4.4 in), also over 16 days, while humidity rises to a damp 90%. For more detailed information on November weather, you can check Merthyr Mawr weather in November.

August and December offer strikingly different weather experiences. In August, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (82°F), with an average of 16°C (62°F). The month sees a decent amount of rainfall, accumulating 106 mm (4.2 in) over approximately 16 days, accompanied by a humidity level of 73%. In contrast, December presents a much colder climate, with temperatures dipping as low as -2°C (29°F) and averaging 7°C (45°F), peaking at just 13°C (55°F). Precipitation is higher in December, totaling 144 mm (5.7 in) and occurring on about 18 days, along with increased humidity at 89%. For more detailed information about the December weather, you can visit Merthyr Mawr weather in December.

Compare Merthyr Mawr's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Merthyr Mawr

In August, Merthyr Mawr experiences a notable shift in weather as it welcomes warmer temperatures, with a maximum that can reach up to 28°C (82°F), making it one of the warmer months of the year. However, the average is a more comfortable 16°C (62°F), offering pleasant conditions for outdoor activities. Despite the warmth, this month also sees a fair amount of rain, with 106 mm falling over approximately 16 days, contributing to a humidity level of 73% that adds to the muggy feel. While some months are drier, August stands out for its blend of heat and rain, creating a unique atmosphere in Merthyr Mawr. For a deeper insight into the area's climate, visit Merthyr Mawr Climate.