Last updated: March 17, 2025
In May, the charming town of Porthmadog, United Kingdom, experiences a delightful range of temperatures, with maximums reaching a pleasant 23°C (73°F) and average temperatures sitting at 11°C (52°F). As spring blossoms, residents and visitors enjoy mild days, although the nights can be cool, dropping to a minimum of 2°C (36°F). This month also brings 87 mm (3.4 in) of rainfall spread over 12 days, contributing to the region's lush greenery. With a humidity level of 79%, the air feels fresh and invigorating, making May an ideal time to explore Porthmadog's stunning landscapes and vibrant culture.
In May, Porthmadog experiences a delightful shift toward spring warmth, marking a significant transition from the chill of winter. With minimum temperatures hovering around 2°C (36°F) and a pleasant average of 11°C (52°F), the town begins to embrace milder days. The maximum temperature reaches a comfortable 23°C (73°F), providing ideal conditions for outdoor activities and exploration. As May unfolds, it's evident that the region is awakening, as the temperatures steadily rise from the earlier months—signaling a transition from the briskness of April’s 19°C (66°F) highs. This month serves as a beautiful preview of the warmer summer days ahead, inviting both locals and visitors to enjoy the vibrant flora and activities that come to life in Porthmadog.
In May, Porthmadog experiences a moderate precipitation amount of 87 mm (3.4 in) spread over 12 days, marking a noticeable decrease from the wetter months of February and March, which saw substantially higher totals of 162 mm (6.4 in) and 152 mm (6.0 in), respectively. April's drier conditions with only 62 mm (2.4 in) hinted at the easing of spring rains, and this trend of reduced rainfall continues into May. While this month signifies a shift towards more stable weather, it still holds its own, contrasting with the torrential downpours that dominate the autumn months, particularly October, which averages 206 mm (8.1 in), often bringing overcast skies for weeks. As the spring transforms into summer, Porthmadog sets the stage for warmer, albeit slightly wetter, months ahead, setting a perfect backdrop for locals and visitors alike to enjoy the natural beauty of the region.
In Porthmadog, United Kingdom, May marks a noticeable transition in humidity levels, dipping to 79% from the higher averages of the previous months. This decrease reflects the gradual warming of spring as the weather starts to shift towards summer. Notably, this is one of the lowest humidity readings of the year, following a consistent decline since January’s peak of 89%. As the days lengthen, the climate becomes more comfortable, with a hint of warmth in the air, making May an ideal time for outdoor activities. However, humidity begins to rise again in June, suggesting a return to the dampness characteristic of this coastal region, keeping residents and visitors on their toes as they enjoy the changing seasons.
As May unfolds in Porthmadog, the UV Index rises significantly, reaching a high level of 7. This uptick heralds a change in exposure, indicating a burn time of just 25 minutes—a stark contrast to the more forgiving figures of earlier months. While January through April gradually introduces higher indices, May marks the transition into summer sun, where skin protection becomes increasingly important. Following this trend, the UV Index peaks in June and July at 8, emphasizing the need for careful sun safety measures. As you enjoy the warmer weather and longer days, be sure to stay informed and protected with the fluctuating UV conditions. For more details, visit Porthmadog UV Index.
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May brings a delightful burst of sunshine to Porthmadog, showcasing a striking increase in daylight hours as spring progresses. With 415 hours of sunshine, May stands out as a radiant month, allowing residents and visitors to bask in the warmth and enjoy outdoor activities. This trend of growing sunlight begins in January with a modest 93 hours and steadily climbs, reaching its peak during the vibrant summer months of July and August. April and June also contribute ample sunlight, but May's brilliance marks the transition into the heart of summer. As the year unfolds, the course of sunshine takes a downward turn in the latter months, reminding us to savor every moment of this sun-drenched springtime glow.
In Porthmadog, the likelihood of enjoying sunny weather in May stands at 30%, which reflects a slight dip from the more promising 46% observed in April. This decrease marks a transition into late spring where sunshine becomes somewhat less predictable. Notably, while May’s chances are higher than the early months of the year—where January and February linger around 20%—they are not as favorable as the peak of summer in July, which boasts a 36% chance. As the year progresses, the sunny prospects fluctuate, creating a rhythm of bright and cloudy days that locals and visitors alike anticipate.
As spring unfolds into summer, Porthmadog experiences a marked increase in daylight duration, showcasing an uplifting trend in sunlight hours. From a modest 8 hours in January, the days progressively lengthen, reaching 9 hours in February and blossoming into 14 hours by April. May stands out with a delightful 15 hours of daylight, warming the atmosphere and inviting outdoor activities. This upward trajectory peaks in June and July, where the sun graces the town with 16 hours, creating vibrant, long evenings. However, as summer wanes, daylight begins its gradual decline, tapering off to 12 hours in September and dropping to 10 hours by October, before settling back down to 8 hours in November and 7 hours in December. This cyclical pattern of light captures the essence of seasonal change in Porthmadog, offering residents and visitors alike a chance to enjoy nature’s beauty throughout the year.
In Porthmadog, May ushers in a gentle breeze with an average wind speed of 4.7 m/s (11 mph), marking a slight increase from the preceding months. After the quiet winds of April, May’s refreshing gusts serve as a prelude to the warmer summer months. While winds pick up compared to the four preceding months, they remain notably lighter than the more blustery conditions that often characterize the autumn. This trend reflects the transitional nature of late spring, where the cooler, invigorating winds begin to mellow as the season progresses towards the sunnier days of June. The pleasant wind conditions in May provide an ideal backdrop for outdoor activities, captivating both locals and visitors alike in this charming coastal town.
The weather in Porthmadog 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 Porthmadog and find detailed weather information for every month.
May and January present quite different weather patterns. In May, temperatures range from a minimum of 2°C (36°F) to a pleasant maximum of 23°C (73°F), with an average of 11°C (52°F). This month sees precipitation levels of 87 mm (3.4 in) spread over approximately 12 days, coupled with a humidity level of 79%. In contrast, January is chillier, with minimum temperatures dipping to -1°C (30°F) and a maximum of 13°C (55°F), averaging 6°C (43°F). Additionally, January experiences more rainfall, totaling 121 mm (4.8 in) over about 16 days and a higher humidity of 89%. For more details on Porthmadog's January weather, check out Porthmadog weather in January.
May and February exhibit distinct weather patterns, reflecting the transition from winter to spring. In May, temperatures typically range from a minimum of 2°C (36°F) to a maximum of 23°C (73°F), with an average of 11°C (52°F). In contrast, February experiences colder conditions, with temperatures ranging from -3°C (28°F) to 15°C (60°F) and an average of 6°C (43°F). February also sees a higher level of precipitation, totaling 162 mm (6.4 in) over about 19 days, compared to May's 87 mm (3.4 in) across 12 days. Humidity levels are notably high in both months, with February at 88% and May at 79%. For a more detailed look at February weather, you can check out Porthmadog weather in February.
When comparing the weather in March and May, it is evident that May tends to be warmer and more pleasant. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 23°C (73°F), with an average of 11°C (52°F), while March features cooler temperatures, with a minimum of -5°C (23°F) and a maximum of 16°C (61°F), averaging 7°C (44°F). Additionally, May receives less precipitation, totaling 87 mm (3.4 in) over 12 days, compared to March's 152 mm (6.0 in) across 19 days. Humidity levels are relatively high in both months, with May at 79% and March slightly higher at 86%. For detailed information on March weather, you can visit Porthmadog weather in March.
In comparing the weather of May and April, May presents a noticeable increase in temperature, with average highs reaching 23°C (73°F) compared to April's maximum of 19°C (66°F). The minimum temperatures also rise, from 0°C (33°F) in April to 2°C (36°F) in May. While both months share the same number of rainy days, May experiences a higher total precipitation of 87 mm (3.4 in) compared to April’s 62 mm (2.4 in). Humidity levels remain relatively close, with April slightly higher at 84% versus May's 79%. For more detailed information about April weather, you can refer to Porthmadog weather in April.
In comparing the weather between May and June, we notice a trend towards warmer temperatures and increased precipitation. May sees a minimum temperature of 2°C (36°F), an average of 11°C (52°F), and a maximum of 23°C (73°F), while June's temperatures rise with a minimum of 7°C (46°F), an average of 14°C (57°F), and a maximum of 26°C (79°F). Additionally, June experiences more rainfall, totaling 106 mm (4.2 in) over 16 days compared to May's 87 mm (3.4 in) over 12 days. Humidity levels remain relatively similar, with May at 79% and June slightly higher at 81%. For more detailed insights into June weather, you can visit Porthmadog weather in June.
In May, the weather is generally cooler, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 23°C (73°F) and an average of 11°C (52°F). The month sees about 87 mm (3.4 in) of precipitation over approximately 12 days, accompanied by a humidity level of 79%. By contrast, July experiences milder conditions, with temperatures between 9°C (48°F) and 25°C (77°F), averaging around 15°C (60°F). While July has slightly more rainfall at 105 mm (4.1 in) spread over 15 days, its humidity remains relatively steady at 78%. For more details on July weather specifically, you can visit Porthmadog weather in July.
The weather in May and August shows distinct differences in temperature and precipitation patterns. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 23°C (73°F), with an average of 11°C (52°F). The month sees about 87 mm (3.4 in) of precipitation over 12 days, maintaining a humidity level of 79%. In contrast, August brings milder temperatures with a minimum of 9°C (49°F) and a maximum of 24°C (75°F), while the average sits at 15°C (60°F). However, it experiences significantly higher rainfall, totaling 162 mm (6.4 in) spread over 22 days, yet still maintaining the same humidity level of 79%. For a closer look at the August weather, you can check Porthmadog weather in August.
May and September offer contrasting weather conditions as spring transitions into autumn. In May, temperatures range from a cool 2°C at night to a pleasant 23°C during the day, while September boasts slightly milder evenings at 6°C and warmer days peaking at 26°C. Precipitation patterns also shift, with May experiencing 87 mm of rain over 12 days compared to September's heftier 146 mm over 18 days. Additionally, humidity levels are higher in September at 85% compared to May's 79%, making the earlier month feel a bit more comfortable. For those interested in more detailed weather conditions, check out Porthmadog weather in September.
When comparing the weather in May and October, it’s evident that both months experience mild average temperatures, with May having slightly higher maximum temperatures at 23°C (73°F) compared to October's 20°C (68°F). However, October sees a notable increase in precipitation, receiving 206 mm (8.1 in) over 22 days, which is substantially higher than May's 87 mm (3.4 in) across 12 days. Additionally, October's humidity level is higher at 90%, compared to May's 79%, making it feel more damp and chilly. For more specific insights, you can check out Porthmadog weather in October.
In comparing the weather between May and November, we observe a notable contrast in temperature and precipitation patterns. May experiences milder temperatures ranging from a minimum of 2°C (36°F) to a maximum of 23°C (73°F), with an average of 11°C (52°F). In contrast, November is cooler, with temperatures fluctuating between 1°C (34°F) and 14°C (58°F), averaging at 8°C (48°F). Additionally, November sees a significant increase in precipitation, accumulating 176 mm (6.9 in) over 21 days, compared to May's 87 mm (3.4 in) over 12 days. The humidity also rises in November, reaching 91%, whereas May has a slightly lower humidity level of 79%. For more detailed weather insights, you can refer to Porthmadog weather in November.
May and December present contrasting weather patterns. In May, temperatures range from a refreshing 2°C (36°F) to a pleasant max of 23°C (73°F), with an average temperature of 11°C (52°F). The month experiences around 87 mm (3.4 in) of precipitation over about 12 days, accompanied by a humidity level of 79%. In contrast, December is much colder, with minimum temperatures dropping to -2°C (29°F) and a maximum of 12°C (54°F); the average temperature is a chilly 7°C (45°F). This month sees significantly higher precipitation at 203 mm (8.0 in) across 24 days, along with a slightly higher humidity level of 89%. For more details, check out Porthmadog weather in December.
In May, Porthmadog experiences a delightful transition as the chill of winter fades and spring blossoms into full bloom. With temperatures peaking at a pleasant 23°C (73°F), the month stands out from other times of the year, offering more warmth and longer daylight hours. However, it's important to note that the average temperature hovers around 11°C (52°F), ensuring that layers may still be needed for cooler days. May is also marked by about 12 days of rainfall totaling 87 mm; this moisture helps nourish the vibrant landscapes and lush greenery for which the area is renowned. Coupled with a humidity level of 79%, the air feels fresh and invigorating. For those seeking to delve deeper into how these weather patterns play a role throughout the year, check out Porthmadog Climate.