May Weather in Pwllheli, United Kingdom

Last updated: March 17, 2025

In May, Pwllheli, United Kingdom experiences a mild maritime climate characterized by an average temperature of 11°C (52°F), with maximums reaching up to 19°C (66°F) and dipping as low as 4°C (40°F). The region sees a moderate precipitation total of 83 mm (3.3 in) spread across 12 days, resulting in a humidity level of 79% that adds to the fresh coastal atmosphere. Whether you’re exploring the vibrant local culture or enjoying the scenic beauty, May’s weather offers a blend of cool breezes and occasional showers that can enhance your outdoor experience.

May Temperature in Pwllheli

In May, Pwllheli, United Kingdom, welcomes a delightful shift in temperatures, reflecting the arrival of spring. With minimums rising to around 4°C (40°F) and averages climbing to 11°C (52°F), it marks a noticeable warmth compared to the earlier months. The maximum temperatures reach a pleasant 19°C (66°F), making it an ideal time for outdoor activities and exploring the stunning coastal scenery. This trend of increasing warmth not only enhances the charm of the area but also encourages locals and visitors alike to enjoy the blossoming landscapes and vibrant atmosphere as the days grow longer and sunnier.

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

The chart illustrates May temperature patterns in Pwllheli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454545485257606058545047
Data source: Temperature data for Pwllheli 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 Pwllheli

In May, Pwllheli experiences a moderate level of precipitation, with an average of 83 mm (3.3 in) spread over 12 days. This marks a notable increase from the drier spell in April, which saw only 59 mm (2.3 in) of rainfall, albeit over fewer days. The transition into late spring brings a refreshing balance, as the amount of rain in May sets the stage for the wetter months ahead. Typically, the precipitation begins to rise as summer approaches, but May's relatively mild rainfall provides a pleasant reprieve, making it a delightful time for outdoor adventures amidst the lush, blooming landscapes.

May Precipitation Trends in Pwllheli

The chart displays monthly precipitation patterns in Pwllheli, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1371721605983109108166162246215238
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Pwllheli

In Pwllheli, United Kingdom, May ushers in a welcome decrease in humidity levels, dipping to 79%, offering a refreshing change from the dampness of the preceding months. After starting the year with a high humidity of 89% in January, the trend gently declines through the spring, showcasing a shift that makes May an ideal time for outdoor activities. This gradual reduction continues into June, where humidity rises slightly to 81%, but remains lower than the peak winter figures. Visitors to Pwllheli in May can enjoy the balmy air as the region transitions towards the warmer months, creating a pleasant atmosphere before summer fully arrives.

May Average Humidity in Pwllheli

This chart illustrates the average monthly humidity levels in Pwllheli, 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%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Pwllheli

As we transition into May in Pwllheli, the UV Index rises significantly, reaching 7 and categorizing as high. This marks a turning point from the more moderate indices of the earlier months, which hovered around 4 to 5. With a burn time of just 25 minutes, it's essential to take precautions against the increased sun exposure, reminding us that summer is just around the corner. The upcoming months will see even higher UV levels, emphasizing the need for effective sun protection as we move into June and July, where indices peak at 8. To stay informed about current UV levels and protect yourself while enjoying the sunshine, visit Pwllheli UV Index.

Maximum UV Index Levels in Pwllheli for May

The chart shows the monthly maximum UV Index (UVI) for Pwllheli 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Pwllheli 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 Pwllheli

As spring transitions into summer, May shines brightly in Pwllheli, United Kingdom, boasting an impressive 415 hours of sunshine. This marks a notable increase from 335 hours in April, highlighting a delightful surge in daylight that sets the stage for outdoor adventures. In fact, May is part of a trend where sunshine hours steadily rise from a mere 93 hours in January to a peak of 421 hours in July, creating an inviting atmosphere for residents and visitors alike. Following this shimmering peak, the sun gradually retreats, with August still offering a respectable 383 hours but tapering down to 315 hours by September. Ultimately, May captures the essence of spring's warmth while effortlessly ushering in the vibrant energy of summer.

Monthly Sunshine Duration in Pwllheli: May Highlighted

The May sunshine duration represents the total number of hours Pwllheli 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.
JanFebMarAprMayJunJulAugSepOctNovDec93h162h228h335h415h404h421h383h315h238h126h109h
Data source: Pwllheli May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Pwllheli During May

In Pwllheli, May brings a moderate 35% chance of sunny weather, offering a pleasant reprieve as spring transitions into summer. This figure is notably higher than the earlier months—January through April—when sunny days linger below or hover around the 30% mark. While May doesn't quite reach the promising levels of June and July, which boast 28% and 39% chances respectively, it stands out as a peak in the seasonal shift, hinting at the arrival of warmer, sunnier days ahead. As the year progresses, the fluctuating patterns of sunlight highlight May as a significant month for outdoor activities, where residents and visitors alike can enjoy the emerging beauty of spring in Pwllheli.

Percentage of Sunny Days in May in Pwllheli

The chart illustrates the percentage of sunny days in Pwllheli 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 Pwllheli experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%27%27%48%35%28%39%28%24%17%20%24%
Data source: Pwllheli May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Pwllheli in May

In Pwllheli, United Kingdom, the month of May marks a delightful transition into longer days, with an average daylight duration of 15 hours. This increase is evident as the sun gradually rises earlier and sets later, following the 14 hours of daylight in April. May continues the trend of expanding daylight, leading seamlessly into the summer months of June and July, which boast the longest days. As spring firmly takes hold, the bright days encourage outdoor activities, making May a truly vibrant time in this coastal town. The gradual increase in daylight not only enhances the beauty of Pwllheli’s landscapes but also uplifts the spirits of its residents and visitors alike.

Average Daylight Hours in Pwllheli for May

The chart illustrates the variation in daylight duration in Pwllheli throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 12m9h 52m11h 54m14h15h 50m16h 48m16h 16m14h 37m12h 36m10h 32m8h 39m7h 39m
Data source: Pwllheli daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Pwllheli

In Pwllheli, the month of May often welcomes a gentle breeze, with an average wind speed of 5.9 m/s (13 mph). This marks a slight increase from the calm of April, which experiences the lowest winds of the year at 4.7 m/s (10 mph). As spring unfolds its colors, May's winds are characterized by their moderate pace, transitioning from the stronger gusts of the earlier months like February, which boasts an average of 8.3 m/s (19 mph). Looking ahead, the wind speeds trend downward into the summer months, indicating a shift towards a more tranquil atmosphere by June. Thus, May stands as a transitional period, balancing the invigorating breezes of spring with the soothing calm of early summer.

Average May Wind Speed in Pwllheli

The chart displays monthly wind speed patterns in Pwllheli, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.98.37.04.75.9 m/s5.04.05.54.68.27.27.6
Data source: Pwllheli May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Pwllheli Compares to Other Months

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

In comparing the weather in May and January, we see notable differences in temperature and precipitation patterns. May enjoys milder conditions with average temperatures ranging from 4°C (40°F) to a maximum of 19°C (66°F), whereas January is cooler, with averages between 1°C (35°F) and a high of 13°C (56°F). Additionally, May experiences less precipitation, totaling 83 mm (3.3 in) over about 12 days, compared to January's 137 mm (5.4 in) over 16 days. Humidity levels are also generally higher in January at 89%, compared to 79% in May. For a detailed look at January weather specifics, you can visit Pwllheli weather in January.

May typically offers milder temperatures compared to February, with minimums around 4°C (40°F) and maximums reaching up to 19°C (66°F) on average. In contrast, February experiences colder temperatures, with a minimum of -1°C (31°F) and a maximum of 13°C (56°F). While May has relatively lower precipitation at 83 mm (3.3 in) over 12 days, February is much wetter, receiving 172 mm (6.8 in) during 19 days of rain. Humidity levels are also slightly elevated in February at 88% compared to May's 79%. For a more detailed look at February weather specifics, you can refer to Pwllheli weather in February.

In comparing the weather between March and May, we see notable differences in temperature and precipitation. May tends to be milder, with average temperatures ranging from 4°C to 19°C (40°F to 66°F), compared to March, where temperatures are lower, ranging from -3°C to 14°C (26°F to 58°F). Additionally, May experiences less precipitation, totaling 83 mm (3.3 in) over 12 days, while March has significantly higher rainfall of 160 mm (6.3 in) spread over 19 days. The humidity levels also differ slightly, with May averaging 79% and March at 86%. For a more detailed look at weather conditions, you can refer to Pwllheli weather in March.

In comparison to April, May generally brings warmer temperatures, with minimums of 4°C (40°F) and maximums reaching up to 19°C (66°F), compared to April’s 3°C (38°F) and 16°C (62°F). The average temperature in May is also higher at 11°C (52°F), while April averages at 9°C (48°F). Despite these warmer conditions, May experiences more precipitation, totaling 83 mm (3.3 in) over 12 days, whereas April sees 59 mm (2.3 in) over 10 days. Humidity levels are slightly lower in May at 79% compared to April's 84%. For further details, you can visit Pwllheli weather in April.

May and June present a noticeable shift in weather patterns. In May, temperatures range from a minimum of 4°C (40°F) to a maximum of 19°C (66°F), with an average of 11°C (52°F). The month experiences 83 mm (3.3 in) of precipitation over 12 days and maintains a relatively high humidity of 79%. In contrast, June sees a rise in temperatures, with minimums of 9°C (49°F) and maximums reaching 24°C (76°F), averaging 14°C (57°F). However, this month also brings increased rainfall, accumulating to 109 mm (4.3 in) over 15 days, alongside slightly higher humidity at 81%. To explore more about the weather specifics in June, you can visit Pwllheli weather in June.

In comparing the weather between May and July, it's evident that July is generally warmer and more humid. May sees temperatures ranging from a low of 4°C (40°F) to a high of 19°C (66°F), while July enjoys milder conditions with minimum temperatures of 12°C (53°F) and maximums reaching 25°C (77°F). Both months experience significant rainfall, with May receiving 83 mm (3.3 in) over 12 days and July slightly wetter at 108 mm (4.3 in) across 13 days. Humidity levels remain relatively consistent, with May at 79% and July slightly lower at 78%. For a detailed overview of July weather, you can refer to Pwllheli weather in July.

The weather in May is generally cooler than in August, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 19°C (66°F), and an average of 11°C (52°F). In contrast, August sees milder conditions, with temperatures starting at 12°C (54°F) and peaking at 21°C (71°F), averaging around 16°C (61°F). Moreover, August experiences significantly more precipitation, totaling 166 mm (6.5 in) over 22 days, compared to May's 83 mm (3.3 in) over 12 days. Despite similar humidity levels of 79% in both months, the increased rainfall in August can affect outdoor activities. For more details, you can check Pwllheli weather in August.

May and September exhibit distinct differences in weather patterns. In May, temperatures range from a minimum of 4°C (40°F) to a maximum of 19°C (66°F), with an average of 11°C (52°F). The month sees about 83 mm (3.3 in) of precipitation over 12 days and a humidity level of 79%. In contrast, September enjoys warmer temperatures, with a minimum of 9°C (49°F) and a maximum reaching 24°C (76°F), averaging at 15°C (59°F). However, it experiences significantly higher rainfall, totaling 162 mm (6.4 in) across 18 days and a humidity level of 85%. For further details on the weather in September, you can check Pwllheli weather in September.

May and October present similar temperature ranges, with both months experiencing minimums around 4°C and maximums reaching 19°C. However, May generally has a slightly warmer average temperature of 11°C compared to October's 12°C. Precipitation is significantly higher in October, with 246 mm compared to May's 83 mm, and it rains on more days (23 versus 12), contributing to the increased humidity of 90% in October, versus 79% in May. For a more detailed look at the weather in October, you can check Pwllheli weather in October.

May and November present contrasting weather patterns, despite having similar minimum temperatures around 4°C. In May, the average temperature peaks at 11°C, reaching a maximum of 19°C, while November's averages are slightly cooler, with a maximum of just 15°C. Additionally, May experiences 83 mm of precipitation over 12 days, leading to a humidity level of 79%. In contrast, November sees more considerable rainfall at 215 mm over 22 days, contributing to a higher humidity of 91%. For a closer look at November's weather specifics, you can visit Pwllheli weather in November.

When comparing May and December weather, there's a notable difference in both temperature and precipitation. May typically sees a milder temperature range, with averages around 11°C (52°F) and a maximum of 19°C (66°F), while December is cooler, with an average of 8°C (47°F) and a maximum of only 12°C (54°F). Precipitation levels also vary significantly; May experiences around 83 mm (3.3 in) of rainfall over 12 days, whereas December is much wetter, with 238 mm (9.4 in) over 25 days. Additionally, humidity is higher in December at 89%, compared to 79% in May. For more details on December weather, you can visit Pwllheli weather in December.

Compare Pwllheli's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Pwllheli

As May unfolds in Pwllheli, the temperatures begin to warm up, creating a delightful contrast to the cooler months. With an average temperature of 11°C (52°F) and maximums reaching 19°C (66°F), the month invites residents and visitors alike to enjoy the outdoors, despite the occasional rainfall. Although May sees approximately 83 mm (3.3 in) of precipitation over about 12 days, the weather is generally more pleasant and inviting compared to the chill of earlier spring months. The humidity level at 79% adds a layer of freshness, making for crisp mornings and balmy afternoons. For a comprehensive look at the climate trends, check out Pwllheli Climate.