May Weather in Rhondda, United Kingdom

Last updated: March 17, 2025

May in Rhondda, United Kingdom, experiences a dynamic weather profile, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 25°C (77°F). The average temperature hovers around a mild 11°C (52°F), making it a pleasant yet unpredictable month. Rain is a frequent visitor, with 93 mm (3.7 in) of precipitation spread across 13 wet days, resulting in a notable humidity level of 80%. This combination of warmth and moisture contributes to the lush, verdant landscapes characteristic of Rhondda during springtime.

May Temperature in Rhondda

In Rhondda, United Kingdom, May marks a significant transition towards warmer days, showcasing a delightful shift from the chill of winter. With temperatures ranging from a minimum of -1°C (31°F) to a pleasant maximum of 25°C (77°F), the month boasts an average temperature of 11°C (52°F), inviting outdoor activities and blossoming flora. This increase in warmth is a stark contrast to the preceding months, where winter's grip kept thermometers firmly in the single digits. As the days grow longer and sunshine more frequent, Rhondda begins to shake off the remnants of colder weather, setting the stage for a vibrant summer ahead.

May Weather in Rhondda: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rhondda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404143475258615956514543
Data source: Temperature data for Rhondda 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.

May Precipitation in Rhondda

May in Rhondda brings a delightful mix of showers, totaling 93 mm (3.7 in) of precipitation over 13 days. This amount is slightly higher than the preceding month of April, which saw 64 mm (2.5 in), indicating a gradual shift into the wetter conditions typical of late spring. As the region transitions toward summer, May’s rainfall plays an essential role in nourishing the vibrant local flora, setting the stage for lush greenery. Interestingly, this pattern of increased precipitation mirrors the overall trend observed in the months to follow, particularly with June and July each recording the same 93 mm, highlighting the persistence of springtime showers as they flow into the summer months.

May Precipitation Trends in Rhondda

The chart displays monthly precipitation patterns in Rhondda, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec821241116493919311492143117144
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rhondda

As spring transitions into summer, May in the Rhondda region of the United Kingdom sees a noticeable dip in humidity, averaging around 80%. This marks a decline from the 84% humidity of April, indicating a shift towards drier conditions as the landscape awakens. The trend continues into June, where humidity remains steady at 80%, before plummeting to 70% in July. Overall, the gradual decrease from the winter months—where humidity ranges between 88% and 90%—highlights May as a pivotal month, balancing the lingering moisture of spring with the impending aridity of summer. This makes it a perfect time for exploring Rhondda's lush greenery before the heat of summer sets in.

May Average Humidity in Rhondda

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

May UV Index in Rhondda

As May rolls into Rhondda, the UV Index rises to 7, indicating a high exposure category that calls for increased sun safety awareness. This trend marks a continuation of the heightened UV levels seen since April, with a burn time potentially as short as 25 minutes for fair-skinned individuals. The gradual increase from a low of 1 in January to this summer peak emphasizes the importance of sun protection as we transition toward the sunniest months. By June, Rhondda will experience even higher UV levels of 8, highlighting the need for precautions earlier in the season. Stay informed and protect your skin; for more details on UV levels, check out the Rhondda UV Index.

Maximum UV Index Levels in Rhondda for May

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

May Sunshine in Rhondda

As spring unfolds in Rhondda, May dazzles with an impressive 393 hours of sunshine, marking a peak in daylight that begins to define the region's vibrant summer months. Following the gradual ascent from January's 87 hours, the sun's embrace becomes ever more palpable, with April laying a solid foundation of 320 hours that ignites the anticipation of warmer days. The trend continues through June and July, where sunshine hours reach their zenith at 410 hours, providing ample opportunities for outdoor adventures. However, as August gently nudges summer towards its end with a slight decrease to 362 hours, the sunlight remains plentiful before the gradual descent into autumn takes over. By September, the hours begin to wane, illustrating the natural rhythm of the seasons, but the brilliance of May still lingers in the fond memories of the sun-drenched days.

Monthly Sunshine Duration in Rhondda: May Highlighted

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

Chance of Sun in Rhondda During May

In the Rhondda, United Kingdom, May presents a noteworthy opportunity for sunny weather, though the chance of sunshine is only 28%. This is a slight dip from the previous month, April, which boasts a more favorable 51% likelihood of sun. Observing the broader trends, the chance of sunny days gradually increases from 18% in January to a peak in April, but then begins to wane again as summer approaches, with June and July showing varying levels around 25% to 36%. Ultimately, while May offers the promise of brighter days compared to the early months of the year, it still falls short of the bountiful sunshine that characterizes the onset of summer.

Percentage of Sunny Days in May in Rhondda

The chart illustrates the percentage of sunny days in Rhondda throughout the year, with May 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 Rhondda experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%19%25%51%28%25%36%25%23%17%27%17%
Data source: Rhondda May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rhondda in May

As spring unfolds into summer, May shines brightly in Rhondda, United Kingdom, boasting an impressive 15 hours of daylight. This increase follows the steady rise from 8 hours in January to 13 hours in April, showcasing a clear progression towards longer, sunlit days. With the sun's peak in June at 16 hours, May serves as a remarkable transition month, encouraging outdoor activities and festive celebrations. As summer approaches, the daylight trend demonstrates nature's vivid transformation, marking a period of vitality and warmth for residents to enjoy.

Average Daylight Hours in Rhondda for May

The chart illustrates the variation in daylight duration in Rhondda throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 22m9h 57m11h 55m13h 55m15h 40m16h 34m16h 5m14h 31m12h 35m10h 35m8h 48m7h 51m
Data source: Rhondda daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Rhondda

In May, the winds in Rhondda, United Kingdom exhibit a gentle yet invigorating presence, averaging 4.1 m/s (9 mph). This month shows a slight recovery from the calmer April winds, which dipped to 3.3 m/s (7 mph). Overall, as spring deepens into early summer, May's wind speed aligns closely with the preceding months, maintaining a trend of relatively moderate gusts. Notably, it sits just below the brisk March winds, where speeds reached 4.4 m/s (10 mph), but represents a more favourable balance compared to the lighter breezes of June and July. Thus, May becomes a delightful time for enthusiasts to enjoy outdoor activities, benefiting from the refreshing air without the overwhelming gusts that characterize other months.

Average May Wind Speed in Rhondda

The chart displays monthly wind speed patterns in Rhondda, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.25.14.43.34.1 m/s3.12.93.63.14.43.64.7
Data source: Rhondda May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Rhondda Compares to Other Months

The weather in Rhondda changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Rhondda and find detailed weather information for every month.

In comparing the weather of May and January, May generally offers milder temperatures with average highs reaching up to 25°C (77°F) compared to January's maximum of only 13°C (55°F). While both months experience relatively high humidity, January comes in slightly higher at 88% versus May’s 80%. Precipitation is also notable in both months, with May receiving 93 mm (3.7 in) over approximately 13 days, while January sees slightly less precipitation at 82 mm (3.2 in) across 12 days. For a closer look at January conditions specifically, check out Rhondda weather in January.

May generally offers milder weather compared to February, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 25°C (77°F) and an average of 11°C (52°F). In contrast, February experiences colder temperatures, with a range from -5°C (23°F) to a maximum of 16°C (60°F) and an average of 5°C (42°F). While May sees 93 mm (3.7 in) of precipitation over 13 days, February has higher precipitation levels at 124 mm (4.9 in) spread across 16 days. Additionally, humidity levels are slightly lower in May at 80%, compared to February's 88%. For a detailed look at February weather in Rhondda, you can refer to Rhondda weather in February.

In comparing the weather of May and March, we see notable differences in temperature and precipitation. May generally experiences milder temperatures, with lows around -1°C (31°F) and averages reaching up to 11°C (52°F), while max temperatures can soar to 25°C (77°F). In contrast, March is cooler, with minimum temperatures dipping to -7°C (19°F) and a maximum of 19°C (66°F), leading to an overall average of 6°C (43°F). Precipitation is slightly higher in March at 111 mm (4.4 in) over 17 days, compared to May's 93 mm (3.7 in) over 13 days. Despite this, March tends to be more humid, with levels at 86% compared to May's 80%. For more detailed insights into March weather, you can check Rhondda weather in March.

In comparing the weather between April and May, it’s clear that May tends to be warmer with average temperatures rising to 11°C (52°F), compared to April's average of 8°C (47°F). The maximum temperatures also reflect this trend, reaching up to 25°C (77°F) in May, whereas April peaks at 21°C (70°F). However, May sees an increase in precipitation, with 93 mm (3.7 in) falling over 13 days, compared to April’s 64 mm (2.5 in) over 10 days. Additionally, humidity remains relatively high in both months, with April slightly higher at 84%, compared to May's 80%. For a more detailed look at April weather specifics, you can refer to Rhondda weather in April.

May and June exhibit a gradual shift in weather conditions, characterized by rising temperatures and similar precipitation patterns. May starts with a minimum temperature of -1°C (31°F) and averages around 11°C (52°F), reaching a maximum of 25°C (77°F). In contrast, June sees a warmer minimum of 5°C (41°F) and a higher average of 14°C (58°F), peaking at 28°C (82°F). Both months experience high humidity around 80%, with May having a slightly higher total rainfall of 93 mm (3.7 in), occurring over 13 days, compared to June's 91 mm (3.6 in) over 15 days. For a detailed look at June's weather specifically, you can refer to Rhondda weather in June.

In comparing the weather between May and July, we see distinct differences in temperature and humidity. May experiences a wider temperature range, with minimums dipping as low as -1°C (31°F) and maximums reaching 25°C (77°F), while July has a milder minimum of 6°C (42°F) and a slightly higher maximum of 28°C (82°F). Both months receive the same amount of precipitation at 93 mm (3.7 in), spread over 13 days, but July's humidity is lower at 70%, compared to May's 80%. For more details, you can check Rhondda weather in July.

In May, temperatures in Rhondda range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 25°C (77°F), with an average of 11°C (52°F). The month sees about 93 mm (3.7 in) of precipitation over 13 days, coupled with relatively high humidity at 80%. In contrast, August offers warmer conditions, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 28°C (83°F), averaging 15°C (60°F). While August experiences slightly more precipitation at 114 mm (4.5 in) over 17 days, the humidity is notably lower at 73%. For more detailed information, you can check Rhondda weather in August.

May and September present a transition in weather conditions as spring turns to autumn. In May, temperatures can dip to as low as -1°C (31°F) with an average temperature of 11°C (52°F), while maximums can reach 25°C (77°F). The month experiences more rainfall, averaging 93 mm (3.7 in) over approximately 13 days, accompanied by 80% humidity. In contrast, September tends to be slightly warmer, with minimum temperatures around 2°C (36°F) and an average of 13°C (56°F), peaking at 27°C (81°F). Rainfall in September is similar, at 92 mm (3.6 in) over the same number of rainy days, but with slightly lower humidity at 79%. For more detailed insights, check Rhondda weather in September.

May and October exhibit significant differences in weather patterns. In May, temperatures range from a minimum of -1°C (31°F) to a maximum of 25°C (77°F), with an average of 11°C (52°F). The month typically sees about 93 mm (3.7 in) of precipitation over 13 days, accompanied by a humidity level of 80%. In contrast, October experiences cooler temperatures, with a minimum of -2°C (28°F), an average of 10°C (51°F), and a maximum of 21°C (70°F). Rainfall is more frequent in October, totaling approximately 143 mm (5.6 in) over 15 days, and humidity rises to 89%. For more details on October weather, visit Rhondda weather in October.

In May, temperatures range from a chilly -1°C (31°F) at night to a pleasant max of 25°C (77°F) during the day, with an average temperature of 11°C (52°F). The month sees approximately 93 mm (3.7 in) of precipitation across 13 days and humidity levels around 80%. In contrast, November experiences lower temperatures, with a minimum of -3°C (26°F) and a maximum of 15°C (59°F), averaging at 7°C (45°F). This month is wetter, featuring about 117 mm (4.6 in) of rainfall over 16 days, along with increased humidity at 90%. For more details about November weather, visit Rhondda weather in November.

In May, the weather is generally milder with average temperatures around 11°C (52°F), a maximum reaching 25°C (77°F), and only about 93 mm (3.7 in) of precipitation over approximately 13 days. This results in a relatively moderate humidity level of 80%. In contrast, December experiences colder temperatures, with an average of 6°C (43°F), highs of just 12°C (54°F), and significantly higher precipitation at 144 mm (5.7 in) across about 18 days, along with increased humidity at 89%. For a closer look at December conditions, you can refer to this link: Rhondda weather in December.

Compare Rhondda's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Rhondda

May in Rhondda brings a delightful transition as temperatures rise, offering a pleasant contrast to the cooler months. The month showcases a notable increase in warmth, with maximum temperatures reaching a comfortable 25°C, fostering an inviting atmosphere for outdoor activities. While May experiences a moderate amount of rainfall, with 13 days of precipitation contributing to the region's lush landscapes, the overall humidity hovers around a balmy 80%. This balance of sun and showers makes May a unique month, perfect for enjoying the beauty of Rhondda. For more detailed insights into the climate, visit Rhondda Climate.