July Weather in Penarth, United Kingdom

Last updated: March 17, 2025

In July, the coastal town of Penarth, United Kingdom, experiences a delightful mix of weather characterized by an average temperature of 17°C (63°F), with maximum highs reaching up to 28°C (82°F). Visitors can enjoy mild summer days, although they should be prepared for occasional rainfall, as the area sees about 85 mm (3.3 in) of precipitation over an average of 12 days. Humidity levels hover around 70%, adding a touch of warmth and creating a vibrant seaside atmosphere. Whether you're strolling along the promenade or relaxing at a local café, Penarth’s July weather offers a beautiful blend of sunshine and summer showers.

July Temperature in Penarth

In July, Penarth embraces the warmth of summer, showcasing a delightful range of temperatures. With a minimum of 9°C (48°F) and a max reaching a pleasant 28°C (82°F), this month offers some of the year's most enjoyable weather. The average temperature hovers around 17°C (63°F), making it ideal for outdoor activities and enjoying the scenic beauty of this charming coastal town. As the temperatures rise in comparison to earlier months, July marks a clear shift from the chilly depths of winter, with residents and visitors alike reveling in the sun-soaked days and mild evenings that characterize this vibrant season.

July Weather in Penarth: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Penarth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424345485460636258534745
Data source: Temperature data for Penarth 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.

July Precipitation in Penarth

In July, Penarth experiences moderate precipitation, accumulating around 85 mm (3.3 in) of rain over 12 days. This rainfall marks a slight increase compared to the preceding months, reflecting the typical British summer pattern where showers become more frequent. Interestingly, it aligns closely with June's totals, suggesting a consistent trend of summer moisture. While August anticipates a similar pattern with 97 mm of precipitation, July’s weather offers a reminder of the lush greenery that thrives on these summer rains, creating a vibrant backdrop for outdoor activities. Overall, the month strikes a balance between warm days and refreshing spells of rain, characteristic of the coastal climate in this charming part of the UK.

July Precipitation Trends in Penarth

The chart displays monthly precipitation patterns in Penarth, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec751019857798485978113599130
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Penarth

In July, Penarth, United Kingdom, experiences a noticeable dip in humidity, with levels dropping to 70%, the lowest of the year. This marks a significant decline from the consistently high humidity seen in the early months, where January and February both boast levels of 88%. As the summer progresses, the trend continues with June and August showing slightly higher humidity at 80% and 73%, respectively. This seasonal shift creates a more comfortable atmosphere, allowing residents and visitors to enjoy the warmer weather without the oppressive moisture typical of the wetter months, particularly autumn and winter, when humidity rises again to 89% and 90%. The July humidity provides a refreshing break, highlighting the dynamic climate of this picturesque coastal town.

July Average Humidity in Penarth

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

July UV Index in Penarth

In July, Penarth experiences a peak in sunlight with a UV Index of 8, categorized as very high. This signifies a significant increase in solar radiation compared to earlier months, where both April and May registered lower indices of 6 and 7, respectively. As a result, the recommended burn time drops to just 15 minutes, urging residents and visitors to take extra precautions. It's essential to protect your skin and enjoy the beautiful summer days wisely. To help you plan your outdoor activities, you can find more detailed information at Penarth UV Index.

Maximum UV Index Levels in Penarth for July

The chart shows the monthly maximum UV Index (UVI) for Penarth in July, 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: Penarth July 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.

July Sunshine in Penarth

In July, Penarth basks in a radiant glow, amassing an impressive 399 hours of sunshine, marking it as the sunniest month of the year. The trend showcases a delightful progression from 81 hours in January, steadily climbing as we move into spring and summer. With each month, the days grow longer and brighter, peaking in July before gradually descending into late summer and autumn. Interestingly, the sunshine hours drop to 345 in August, yet they remain vivid compared to earlier months. This warm streak signals a vibrant summer season, inviting residents and visitors alike to relish the town’s picturesque coastal charm under the splendid Penarth sun.

Monthly Sunshine Duration in Penarth: July Highlighted

The July sunshine duration represents the total number of hours Penarth experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec81h134h192h303h379h355h399h345h279h224h121h100h
Data source: Penarth July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Penarth During July

In Penarth, July marks a noticeable shift towards sunnier weather, with a 41% chance of sunny days—a significant increase compared to earlier months. This trend highlights the peak of summer, as the likelihood of enjoying bright, sunlit skies rises notably from the 27% in June and continues to outperform the subsequent month, August, which only sees a 30% chance. Interestingly, while April already hints at spring warmth with a 52% likelihood, it’s July that truly captures the essence of summer, inviting residents and visitors alike to relish the longer, sunny days. As daylight lingers and temperatures climb, July emerges as a prime time for outdoor activities in this charming coastal town.

Percentage of Sunny Days in July in Penarth

The chart illustrates the percentage of sunny days in Penarth throughout the year, with July 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 Penarth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%23%29%52%33%27%41%30%28%21%31%20%
Data source: Penarth July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Penarth in July

In July, Penarth basks in an impressive 16 hours of daylight, matching the longest days of June. This peak in sunlight not only marks the height of summer but also highlights a significant upward trend in daylight duration since the depths of winter. From the mere 8 hours in January, daylight steadily increases, showcasing nature's vibrant transition from the cold months to the warmth of summer. The gentle decline begins in August, as daylight wanes to 14 hours, signaling the gradual shift toward autumn. This pattern of increasing daylight during spring and summer, followed by a gradual decrease into autumn and winter, eloquently reflects the rhythm of the seasons in this coastal town.

Average Daylight Hours in Penarth for July

The chart illustrates the variation in daylight duration in Penarth throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 24m9h 58m11h 55m13h 54m15h 38m16h 32m16h 3m14h 30m12h 35m10h 36m8h 50m7h 53m
Data source: Penarth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Penarth

In July, Penarth experiences its calmest winds of the year, with an average speed of just 3.4 m/s (8 mph). This gentle breeze is a notable contrast to the earlier months, where the wind speed typically hovers between 5.1 m/s (11 mph) in January and 5.7 m/s (13 mph) in February. As spring transitions to summer, the winds gradually subside, reaching their lowest point in July before slightly picking up again in August at 4.2 m/s (9 mph). This trend of decreasing wind speeds not only enhances the pleasant summer atmosphere but also makes July an inviting time for outdoor activities, floating lazily along the coast, or simply basking in the sun. In the grand scheme of the year, July stands out as a serene month, embracing a tranquil maritime charm that characterizes the heart of summer in Penarth.

Average July Wind Speed in Penarth

The chart displays monthly wind speed patterns in Penarth, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.15.74.83.74.73.53.4 m/s4.23.74.84.25.3
Data source: Penarth July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Penarth Compares to Other Months

The weather in Penarth 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 Penarth and find detailed weather information for every month.

July and January present stark contrasts in weather conditions. In July, temperatures range from a brisk 9°C (48°F) at night to a warm 28°C (82°F) during the day, with an average of 17°C (63°F). This summer month experiences about 85 mm (3.3 in) of precipitation over 12 days, accompanied by a moderate humidity level of 70%. In contrast, January features a chilly climate, with temperatures dipping as low as -3°C (27°F) and only reaching a maximum of 13°C (56°F), resulting in an average of 6°C (42°F). The winter month also sees 75 mm (3.0 in) of precipitation over the same number of days, but with higher humidity at 88%. For more detailed insights into the weather conditions, check Penarth weather in January.

July and February present contrasting weather patterns. In July, 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 17°C (63°F). The month experiences 85 mm (3.3 in) of precipitation over 12 days, combined with a moderate humidity level of 70%. In contrast, February sees much colder temperatures, with lows of -4°C (26°F) and highs reaching only 15°C (60°F), averaging around 6°C (44°F). This winter month is slightly wetter, with 101 mm (4.0 in) of precipitation spread over 14 days and higher humidity at 88%. For more detailed insights, check out Penarth weather in February.

In comparing the weather between July and March, it’s evident that July offers much warmer temperatures, with average highs of 28°C (82°F) compared to March's maximum of 18°C (65°F). While July enjoys a milder average low of 9°C (48°F), March dips significantly, starting as low as -5°C (22°F). Precipitation is relatively high in both months, with July receiving 85 mm (3.3 in) over 12 days and March slightly wetter at 97 mm (3.8 in) across 15 days. Additionally, March has higher humidity levels at 86%, compared to July's 70%. For a detailed look at March weather, you can visit Penarth weather in March.

The weather in July is noticeably warmer than in April, with average temperatures rising to 17°C (63°F) compared to April's cooler average of 9°C (49°F). July experiences a broader temperature range, with highs reaching up to 28°C (82°F), whereas April peaks at 20°C (69°F). In terms of precipitation, July is slightly wetter, accumulating 85 mm (3.3 in) over an average of 12 days, while April sees 57 mm (2.2 in) over 10 days. Humidity is also higher in April at 84%, compared to July's 70%, making the early spring feel more humid despite the cooler temperatures. For more detailed information, check out Penarth weather in April.

In comparing the weather between July and May, July tends to be warmer, with average temperatures reaching 17°C (63°F) and highs peaking at 28°C (82°F), while May has a cooler average of 12°C (54°F) and maximum temperatures of 24°C (76°F). Precipitation levels are somewhat similar, with July receiving 85 mm (3.3 in) over 12 days and May recording 79 mm (3.1 in) during the same number of days. Interestingly, humidity is slightly lower in July at 70%, compared to May’s 80%. For more detailed insights, you can check Penarth weather in May.

In comparing the weather between June and July, July tends to be slightly warmer, with average temperatures rising to 17°C (63°F) compared to June's average of 15°C (60°F). While both months experience similar maximum temperatures, July showcases a higher minimum temperature of 9°C (48°F) versus June's 7°C (45°F). Precipitation levels remain comparable, with June receiving 84 mm (3.3 in) and July slightly increasing to 85 mm (3.3 in), both spread over 12 days. Notably, July's humidity is lower at 70%, while June is more humid at 80%. For a more detailed look at June weather, you can explore Penarth weather in June.

In comparing the weather between July and August, both months exhibit similar temperature ranges, with July showing a minimum temperature of 9°C and an average of 17°C, while August maintains the same minimum but has a slightly lower average of 17°C. The maximum temperature in August reaches 29°C, just one degree higher than July's 28°C. Precipitation is notably higher in August, totaling 97 mm over 13 days, compared to July's 85 mm over 12 days, indicating a wetter month. Additionally, humidity levels rise slightly in August to 73%, up from July’s 70%. For more specific information about August weather, you can visit Penarth weather in August.

In July, the weather presents a warm average temperature of 17°C (63°F), with maximums reaching up to 28°C (82°F), making it a pleasant summer month. However, it also brings a relatively high humidity level of 70% and experiences about 85 mm (3.3 in) of precipitation over 12 days. In contrast, September sees temperatures drop slightly, with an average of 15°C (59°F) and minimums around 4°C (40°F). Despite a minor decrease in total precipitation to 81 mm (3.2 in) over the same number of days, humidity increases to 79%, giving September a cooler yet more humid feel. For more details on September weather in Penarth, you can check Penarth weather in September.

In July, the weather is generally warmer, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (82°F) and average humidity at 70%. Precipitation is relatively moderate, totaling 85 mm (3.3 in) over approximately 12 days. In contrast, October experiences cooler temperatures, with lows of 1°C (33°F) and highs reaching 21°C (70°F), while the average temperature settles at 12°C (54°F). The month is also wetter, receiving about 135 mm (5.3 in) of rainfall across 16 days, and it tends to be more humid at 89%. For more details on the climate during this time, you can check Penarth weather in October.

In July, the weather is generally warm and pleasant, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (82°F) and an average of 17°C (63°F). However, it comes with some rainfall, as indicated by 85 mm (3.3 in) of precipitation over about 12 days, accompanied by a humidity level of 70%. In contrast, November experiences much colder temperatures, with averages dropping to 9°C (48°F) and maximums reaching only 16°C (61°F), alongside chilly minimums that can dip to -1°C (30°F). This month also sees increased precipitation of 99 mm (3.9 in) over approximately 15 days and a higher humidity of 90%. For more detailed information, you can check out Penarth weather in November.

In July, Penarth experiences a mild summer, with temperatures ranging from a cool 9°C (48°F) at night to a warm 28°C (82°F) during the day, and an average of 17°C (63°F). Humidity sits at a comfortable 70%, with some rainfall totaling 85 mm (3.3 in) over about 12 days. In contrast, December brings much colder weather, with temperatures dropping to a minimum of -4°C (26°F) and peaking at just 13°C (56°F), resulting in an average temperature of 7°C (45°F). The winter month is notably wetter, with precipitation measuring 130 mm (5.1 in) and occurring over 17 days, and humidity levels rising to 89%. For more specific details about December weather conditions, you can refer to Penarth weather in December.

Compare Penarth's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Penarth

In July, Penarth basks in warmer temperatures, significantly distinguishing itself from the cooler months of the year. With a pleasant average of 17°C (63°F) and occasional peaks reaching up to 28°C (82°F), summer brings vibrancy to the seaside. However, July isn't just about sunshine; it also experiences around 12 rainy days contributing to a total precipitation of 85 mm (3.3 in). The humidity, averaging around 70%, adds a touch of tropical feeling to the air. This combination of warmth and moisture creates a unique summer atmosphere that sets July apart from the rest of the year. To delve deeper into the nuances of Penarth's climate, visit Penarth Climate.