Last updated: March 17, 2025
Experience the charm of Merthyr Mawr in July, where the weather offers a delightful mix of warm sunshine and refreshing rain. Temperatures can soar to a maximum of 27°C (81°F), while the average hovers around a comfortable 17°C (63°F), dipping to a pleasant minimum of 9°C (48°F) during the cooler nights. Visitors may encounter precipitation on 12 days of the month, totaling 86 mm (3.4 in), contributing to the lush landscape and vibrant scenery. With a humidity level of 70%, the air feels pleasantly mild, making Merthyr Mawr an inviting destination for those seeking a summer escape infused with nature's beauty.
In July, Merthyr Mawr enjoys a delightful summer ambiance, with temperatures that range from a minimum of 9°C (48°F) to a comfortable maximum of 27°C (81°F). This month boasts an average temperature of 17°C (63°F), marking it as one of the warmest times of the year. Following the gradual warming trend seen from the earlier months, July's weather encourages outdoor adventures and leisurely relaxation, making it an ideal time to explore the stunning natural beauty of the area. As the warmth peaks, residents and visitors alike can embrace everything from scenic walks to picnics under the sun, experiencing Merthyr Mawr at its most vibrant and inviting.
In July, Merthyr Mawr experiences a modest precipitation amount of 86 mm (3.4 in), slightly up from June's 85 mm. The rain falls across approximately 12 days, maintaining a consistent pattern seen earlier in the season. This steady precipitation contributes to the lush greenery of the area, a hallmark of Welsh summer landscapes. As the summer progresses, the rainfall tends to increase, hinting at the more substantial August averages, which leap to 106 mm (4.2 in). This month serves as a reminder that while July holds onto moderate rainfall, the onset of late summer often brings more robust showers, blending the tranquil beauty of summer with the rich, earthy scents that rain provides.
In July, Merthyr Mawr experiences a notable dip in humidity, dropping to 70%, a refreshing shift from the higher levels seen in the earlier months. This decrease marks a trend of diminishing humidity from June, which also stood at 80%, creating a more comfortable atmosphere ideal for summer outings. As the summer progresses, humidity begins to climb again in August, hitting 73%, yet it remains significantly lower than the winter months, where humidity peaks at 90% in November and December. This seasonal fluctuation not only enhances the charm of the landscape throughout the year but also allows residents and visitors to enjoy the natural beauty of this picturesque location under varied, yet pleasant, weather conditions.
In July, the UV Index in Merthyr Mawr, United Kingdom, peaks at a striking 8, categorizing it as very high. This indicates a significant risk of harm from unprotected sun exposure, with a burn time of just 15 minutes. Interestingly, July shares this elevated UV Index with June, reflecting a consistent trend of heightened sun intensity during the summer months. As the season progresses, the UV Index is expected to decrease slightly in August, settling to 7, while still remaining in the high category. As you enjoy the outdoors this July, it’s essential to take protective measures against the sun. For more details on the UV Index throughout the year, visit Merthyr Mawr UV Index.
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In July, Merthyr Mawr basks in an impressive 410 hours of sunshine, marking it as one of the sunniest months of the year. This radiant peak follows a steady climb in daylight hours, starting from 87 in January and blossoming throughout the spring, notably reaching 393 hours in May. After June's substantial 373 hours, July's sun-kissed days represent the zenith of summer’s vibrant embrace. As the season transitions into August, the sunlight begins to wane slightly, landing at 362 hours, yet still reflecting the lingering warmth of summer in this charming corner of the UK. The gradual descent in sunlight, particularly noticeable as the year rolls into autumn, paints a clear picture of the changing seasons and their delightful rhythms.
In Merthyr Mawr, July brings a notable 41% chance of sunny weather, making it one of the more favorable months for outdoor activities. This increase in sunshine contrasts sharply with the colder months, like January and December, where the likelihood hovers around 20-22%. As spring unfolds, April stands out with an impressive 54% chance, hinting at the start of brighter days, although the following months, including May and June, experience a decline in sunshine odds. Despite this dip, July's 41% still offers a solid balance of sun and warmth, promising a delightful summer experience before the sun's presence wanes again in August and beyond.
In Merthyr Mawr, United Kingdom, the embrace of summer is beautifully reflected in the July daylight duration, where residents enjoy a generous 16 hours of sunlight. This extended day mirrors the gradual increase that begins in March, when daylight starts to stretch beyond 11 hours, culminating in the longest days of summer. The transition from June to July offers a stable peak of 16 hours before the daylight begins to taper off in August with 14 hours, signaling the approach of autumn. This trend of increasing sunlight continues from the dark depths of winter, where January brings a scant 8 hours of daylight, showcasing the region's seasonal dance from darkness to light and back again.
In Merthyr Mawr, July brings a gentle breeze, with the average wind speed waning to 3.5 m/s (8 mph). This is the calmest month of the year, continuing the declining trend from the previous months. After a brief uptick in May, where winds hit 4.9 m/s (11 mph), the summer settles in with tranquil air, marking a stark contrast to the busier winds found in the winter months, such as December’s brisk 5.7 m/s (13 mph). As the region basks in the warmth of July, the softer winds create a serene ambiance, ideal for enjoying the lush landscapes that define this picturesque part of the United Kingdom.
The weather in Merthyr Mawr changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July'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.
July and January present distinctly contrasting weather patterns. In July, temperatures range from a comfortable minimum of 9°C (48°F) to a maximum of 27°C (81°F), with an average of 17°C (63°F), alongside 86 mm (3.4 in) of precipitation spread over 12 days and a humidity level of 70%. Conversely, January experiences much cooler conditions, with temperatures dropping to a minimum of -3°C (28°F) and peaking at 13°C (56°F), averaging just 6°C (43°F). Although total precipitation is similar at 83 mm (3.3 in) over 12 days, the humidity is higher at 88%, making January feel more damp. For more detailed information on January weather in this region, check out Merthyr Mawr weather in January.
When comparing the weather in July and February, there are notable contrasts in temperature and precipitation. July boasts a mild climate with average temperatures ranging from 9°C (48°F) to a warm 27°C (81°F), accompanied by a relatively moderate precipitation of 86 mm (3.4 in) over 12 days. In stark contrast, February experiences much cooler conditions, with temperatures ranging from a chilly -3°C (26°F) to a maximum of 15°C (59°F). February also tends to be wetter, recording 111 mm (4.4 in) of precipitation spread over 15 days, along with higher humidity levels at 88%. For more details, you can visit Merthyr Mawr weather in February.
When comparing the weather in July and March, there are notable differences in temperature and precipitation. July boasts a much warmer climate, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), while March experiences cooler conditions, with temperatures ranging from -5°C (23°F) to 18°C (64°F). Additionally, although March has higher total precipitation at 101 mm (4.0 in) over 17 days, July's precipitation of 86 mm (3.4 in) occurs over fewer days, making it comparatively drier. Humidity levels are also higher in March at 86%, compared to 70% in July. For more detailed insights into March weather specifically, you can check Merthyr Mawr weather in March.
When comparing the weather in July and April, a noticeable difference can be seen in both temperature and precipitation patterns. July boasts a minimum temperature of 9°C (48°F) and an average of 17°C (63°F), peaking at a warm 27°C (81°F), creating a significantly milder atmosphere than April, which experiences a minimum temperature of -1°C (30°F) and an average of 9°C (49°F), with a maximum of only 20°C (68°F). In terms of precipitation, July experiences more rainfall with 86 mm (3.4 in) over 12 days, compared to April's 56 mm (2.2 in) across 10 days. Additionally, while July's humidity sits at 70%, April's humidity is notably higher at 84%, contributing to a cooler and damp feel during that month. For more detailed information, you can check out Merthyr Mawr weather in April.
In comparing the weather of July and May, it's evident that July is generally warmer, with average temperatures rising to 17°C (63°F), compared to May's average of 12°C (54°F). The peak temperature in July can reach as high as 27°C (81°F), while May’s maximum is 24°C (75°F). Despite both months experiencing similar levels of precipitation with 86 mm (3.4 in) in July and 80 mm (3.2 in) in May, July tends to have slightly more humid conditions at 70%, while May is more humid at 80%. For a closer look at the specifics of May weather, you can check Merthyr Mawr weather in May.
In comparing the weather of June and July, we observe that July tends to be slightly warmer, with an average temperature of 17°C (63°F) compared to June's 15°C (60°F). The maximum temperature remains consistent at 27°C (81°F) for both months. However, June experiences slightly lower humidity at 80%, while July's humidity averages 70%. Additionally, July sees about 86 mm (3.4 in) of precipitation over 12 days, just marginally more than June's 85 mm (3.3 in) over 13 days. For more detailed insights, check out Merthyr Mawr weather in June.
July and August exhibit similar temperature ranges, with July averaging slightly warmer at 17°C (63°F) compared to August's 16°C (62°F). Both months experience a minimum temperature of 9°C (48°F), while August reaches a slightly higher maximum of 28°C (82°F) compared to July's 27°C (81°F). However, August tends to be wetter, with total precipitation measuring 106 mm (4.2 in) over 16 days, compared to July's 86 mm (3.4 in) over 12 days. Humidity increases slightly in August to 73%, up from July's 70%. For a more detailed outlook, you can check Merthyr Mawr weather in August.
July and September exhibit notable differences in weather conditions, despite sharing similar maximum temperatures. In July, temperatures range from a minimum of 9°C (48°F) to an average of 17°C (63°F), with a high of 27°C (81°F). The month experiences an average rainfall of 86 mm (3.4 in) over 12 days, accompanied by a relative humidity level of 70%. In contrast, September sees cooler temperatures, with a minimum of 5°C (41°F) and an average of 15°C (59°F), while still reaching a maximum of 27°C (80°F). It also experiences a slight increase in precipitation to 92 mm (3.6 in) over the same 12 days, and a higher humidity level of 79%. For a more detailed look at weather specifics in September, visit Merthyr Mawr weather in September.
The weather in July is generally warmer, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), while in October, temperatures drop significantly, with averages from 1°C (33°F) to 21°C (70°F). July experiences less precipitation, totaling 86 mm (3.4 in) over about 12 days, compared to October's 146 mm (5.7 in) spread over 17 days, indicating a wetter month. Additionally, October sees a higher humidity level of 89%, compared to July's 70%, making the air feel more damp and chilly. For a detailed look at what to expect, you can visit Merthyr Mawr weather in October.
July and November present a stark contrast in weather patterns. In July, temperatures range from a pleasant minimum of 9°C (48°F) to a warm maximum of 27°C (81°F), with an average of 17°C (63°F). The month experiences about 86 mm (3.4 in) of precipitation over 12 days, accompanied by a moderate humidity level of 70%. In contrast, November sees significantly cooler temperatures, with a chilly minimum of -1°C (31°F) and an average of 9°C (48°F), peaking at 16°C (60°F). The month is wetter, recording 111 mm (4.4 in) of precipitation over 16 days, coupled with elevated humidity at 90%. For more insights on November's weather, you can check out Merthyr Mawr weather in November.
When comparing the weather in July and December, it's clear that these months present starkly different conditions. July boasts a more moderate climate with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), averaging around 17°C (63°F). The month experiences moderate rainfall, totaling 86 mm (3.4 in) over about 12 days, accompanied by a humidity level of 70%. In contrast, December brings colder temperatures, with a minimum of -2°C (29°F) and a maximum of 13°C (55°F), resulting in an average of just 7°C (45°F). Precipitation is higher in December, totaling 144 mm (5.7 in) across 18 days, and humidity spikes to 89%. For a more detailed look at December conditions, check Merthyr Mawr weather in December.
July in Merthyr Mawr offers a vibrant contrast to the cooler months, characterized by warmer temperatures that can soar up to 27°C (81°F) and an average of 17°C (63°F). While sunshine fills the days, the month also sees its share of rainy spells, with 12 days experiencing precipitation that totals 86 mm (3.4 in). Despite the warmth, humidity levels rise to 70%, adding a touch of tropical feel to the Welsh summer. This combination of warmth and moisture creates a lush landscape, making July an ideal time for outdoor adventures. For a deeper dive into the seasonal patterns that shape Merthyr Mawr's climate, visit Merthyr Mawr Climate.