Last updated: March 17, 2025
May in Caernarfon, United Kingdom brings a blend of pleasant warmth and occasional showers, making it a captivating time of year. With maximum temperatures reaching up to 28°C (82°F), bask in the comfortable daytime warmth, while the average temperature settles at a mild 12°C (53°F). Visitors should be prepared for cooler nights, with temperatures dipping to a minimum of 0°C (32°F). Rainfall is a hallmark of the month, contributing 71 mm (2.8 in) over approximately 12 days, leading to a humidity level of 79% that enhances the lush, green landscapes. Whether you're exploring historic sites or enjoying outdoor activities, May's diverse weather conditions provide a dynamic backdrop for your adventures in Caernarfon.
In Caernarfon, the month of May marks a delightful transition into warmer weather, showcasing a significant rise in temperatures compared to the earlier months of the year. With a minimum temperature of around 0°C (32°F) and an average soaring to 12°C (53°F), May offers a refreshing break from the chill of winter. The maximum highs can reach an impressive 28°C (82°F), creating perfect conditions for outdoor activities and exploration. As the temperatures steadily climb from April's pleasant highs to May’s inviting warmth, residents and visitors alike can relish the blossoming beauty of spring, making it a magical time to experience everything this historic town has to offer.
In May, Caernarfon experiences a moderate amount of precipitation, with 71 mm (2.8 in) falling over 12 days. This marks a slight recovery from the drier April, which recorded only 55 mm. Though May is generally milder, the rainfall is a precursor to the wetter months ahead, foreshadowing the approaching summer humidity. Notably, this month sits in a pattern where precipitation gradually increases toward the more rain-soaked months of late summer and autumn, setting the stage for lush landscapes. The consistent rainfall in May reinforces the region's vibrant greenery while also hinting at the rich tapestry of weather patterns typical in this corner of the United Kingdom.
In May, Caernarfon begins to emerge from the chill of winter, with humidity dipping to 79%—the lowest level seen since October. This decline is a welcome change, hinting at the arrival of warmer weather and more comfortable conditions. As the month progresses, the air becomes increasingly pleasant, providing a refreshing contrast to the higher humidity levels observed in the preceding months. Interestingly, while May enjoys this reprieve, it is indicative of a gradual increase in humidity leading into the summer, as evidenced by the rise to 81% in June. Overall, May marks a pivotal point in Caernarfon’s climatic transition, showcasing the balance between spring freshness and the anticipation of the warm months ahead.
As May unfolds in Caernarfon, United Kingdom, residents and visitors experience a notable increase in the UV Index, peaking at 7, which falls into the high exposure category with a reduced burn time of just 25 minutes. This shift marks a significant transition from the lower indices of the winter months, signaling that sun protection becomes increasingly essential. While the UV Index rises sharply in May, it serves as a precursor to the even higher levels expected in June and July, where protective measures must be prioritized. So grab your sunscreen and hats, as spring gives way to sunnier days! For more details, check out the full Caernarfon UV Index.
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As May unfolds in Caernarfon, United Kingdom, the charm of spring reaches its zenith, showcasing an impressive 415 hours of sunshine. This delightful month stands out against the backdrop of previous months, where sunshine gradually increased from a modest 93 hours in January to a vibrant 335 hours in April. May not only marks a significant peak in daylight but also heralds the transition into the warm summer months, where sunshine reaches its zenith in July with 421 hours. As the year progresses, the gradual descent in sunshine hours from August onward serves as a gentle reminder of the fleeting nature of summer, but May’s luminous days invite both locals and visitors to embrace the beauty and warmth before the chill of autumn settles in.
In Caernarfon, the likelihood of sunny weather noticeably fluctuates throughout the year, with May offering a 30% chance of sunshine. This puts it on a decline from the peak of 46% in April, but still significantly better than the dreary winter months, where chances hover around 22% to 25%. Following May, summer months like June and July see a minor uptick in sunshine, but never quite reach April's heights. Overall, while May may not guarantee a sun-drenched getaway, it provides a welcome transition into the brighter days of summer.
As spring unfolds in Caernarfon, May brings a delightful 15 hours of daylight, marking a significant increase from April's 14 hours. This gradual extension of daylight not only enhances outdoor activities but also lifts spirits as residents bask in the longer, sunlit days. As we transition from the long winter nights, the lengthening days reach their peak in June with a glorious 16 hours of daylight. Following this summer zenith, a slow decline begins, with daylight gently tapering off to 14 hours in August. This pattern reflects a clear trend of increasing light during the spring and summer, fostering a vibrant atmosphere in this picturesque Welsh town.
In May, the winds in Caernarfon settle into a mild rhythm, averaging 4.0 m/s (9 mph), making it one of the calmer months of the year. This slight dip in wind speed follows the breezier days of February (5.8 m/s) and March (5.2 m/s), contrasting with the more turbulent start to the year. As spring transitions towards summer, the May winds are gentle, paving the way for outdoor activities amid temperate conditions. Following this modest increase in calm, the winds pick up again in the autumn months, particularly in October when speeds soar to 5.5 m/s. Overall, May provides a pleasant balance of wind and warmth, typical of Caernarfon's varied climate throughout the seasons.
The weather in Caernarfon 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 Caernarfon and find detailed weather information for every month.
May and January present contrasting weather patterns. In May, temperatures typically range from a minimum of 0°C (32°F) to a pleasant maximum of 28°C (82°F), with an average of 12°C (53°F). The month sees around 71 mm (2.8 in) of precipitation over approximately 12 days, along with a humidity level of 79%. In contrast, January features chillier conditions with minimum temperatures dropping to -3°C (27°F) and an average of 6°C (43°F), peaking at a maximum of 14°C (57°F). Although it has slightly more precipitation at 77 mm (3.0 in) over 13 days, the humidity is higher at 89%. For a closer look at January weather specifics, you can refer to Caernarfon weather in January.
When comparing the weather in May and February, a noticeable difference is evident in both temperature and precipitation. May boasts a minimum temperature of 0°C (32°F) and an average of 12°C (53°F), reaching a pleasant maximum of 28°C (82°F). In contrast, February's temperatures are cooler, with a minimum of -4°C (26°F) and an average of 6°C (44°F), peaking at 18°C (65°F). Additionally, February tends to be wetter, receiving 103 mm (4.1 in) of precipitation over 16 days, compared to May's 71 mm (2.8 in) over 12 days. The humidity is also higher in February, at 88%, compared to May's 79%. For more details, you can explore Caernarfon weather in February.
In comparing the weather of March and May, notable differences emerge. May generally enjoys warmer temperatures, ranging from a minimum of 0°C (32°F) to a maximum of 28°C (82°F), while March experiences a chillier range, with temperatures peaking at 18°C (65°F) and dropping as low as -5°C (23°F). Additionally, May tends to be drier, with 71 mm (2.8 in) of precipitation over 12 days, compared to March's higher rainfall of 104 mm (4.1 in) spread across 18 days. Humidity levels also shift, as May's 79% humidity is somewhat lower than March's 86%. For those interested in more detailed information on March weather, you can visit Caernarfon weather in March.
In comparing the weather between April and May, we see a noticeable warming trend. May typically enjoys a wider temperature range, with minimums around 0°C (32°F), averages of 12°C (53°F), and maximums reaching up to 28°C (82°F), while April's temperatures hover slightly lower, with minimums at -1°C (31°F), averages of 9°C (48°F), and maximums of 22°C (72°F). Additionally, May experiences more precipitation overall, with 71 mm (2.8 in) falling over 12 days, compared to April's 55 mm (2.2 in) over 11 days. However, April's humidity is slightly higher at 84%, compared to May's 79%. For a deeper dive into the specifics, you can check out Caernarfon weather in April.
In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 28°C (82°F), with an average temperature of 12°C (53°F). The month sees about 71 mm (2.8 in) of precipitation over 12 days, along with a humidity level of 79%. In contrast, June presents slightly warmer weather, with minimum temperatures at 5°C (41°F) and maximums reaching 29°C (84°F), averaging 15°C (59°F). However, it experiences a bit more rainfall, totaling 91 mm (3.6 in) over 14 days, resulting in a marginally higher humidity of 81%. For a more detailed look at June’s climate, you can visit Caernarfon weather in June.
In May, temperatures range from a chilly minimum of 0°C (32°F) to a pleasant maximum of 28°C (82°F), with an average temperature of 12°C (53°F). The month sees about 71 mm (2.8 in) of precipitation over 12 days, resulting in a relatively humid atmosphere with an average humidity level of 79%. In contrast, July experiences slightly warmer weather, with minimum temperatures increasing to 7°C (45°F) and a maximum reaching 29°C (85°F), averaging 16°C (61°F). However, July also brings more rainfall, totaling 82 mm (3.2 in) over 15 days, while humidity remains comparable at 78%. For more detailed information, you can check Caernarfon weather in July.
In May, the weather features cooler temperatures, with a minimum of 0°C (32°F) and an average of 12°C (53°F), reaching a maximum of 28°C (82°F) on warmer days. The month also sees significant precipitation, totaling 71 mm (2.8 in) over approximately 12 days, while humidity remains relatively high at 79%.
In contrast, August experiences milder conditions with a minimum temperature of 8°C (46°F) and an average of 16°C (61°F), with a maximum of 26°C (79°F). However, it also sees increased rainfall, totaling 105 mm (4.1 in) over about 19 days, maintaining the same humidity level of 79%.
For more details on the weather in August, you can visit Caernarfon weather in August.
In May, the weather is characterized by a minimum temperature of 0°C (32°F) and an average of 12°C (53°F), peaking at a maximum of 28°C (82°F). The month experiences about 71 mm (2.8 in) of precipitation spread over 12 days, with humidity levels around 79%. In contrast, September sees slightly warmer temperatures with a minimum of 3°C (38°F) and an average of 14°C (57°F), while maxing out at 27°C (81°F). Rainfall increases to 98 mm (3.9 in) over about 15 days, which, accompanied by higher humidity at 85%, gives the month a distinctly wetter feel. For more detailed information, you can check Caernarfon weather in September.
When comparing the weather in May and October, notable differences emerge. May typically enjoys a milder climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 28°C (82°F) and an average of 12°C (53°F). In contrast, October tends to be cooler, featuring temperatures that drop to a minimum of -2°C (29°F) and peaking at 22°C (71°F), while maintaining a similar average of 11°C (53°F). Rainfall is more frequent in October, with total precipitation reaching 128 mm (5.1 in) over 18 days, compared to May's 71 mm (2.8 in) over 12 days. Additionally, the humidity is higher in October at 90%, whereas May has a relatively lower humidity of 79%. For more detailed insights on October weather in Caernarfon, you can visit Caernarfon weather in October.
May and November showcase distinct weather patterns, reflecting the transition from spring to winter. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 28°C (82°F), with an average of 12°C (53°F), offering warmer and more pleasant conditions. Conversely, November experiences cooler temperatures, peaking at 15°C (60°F) and averaging around 9°C (48°F), with a minimum of -1°C (31°F). Additionally, May sees about 71 mm (2.8 in) of precipitation over 12 days, while November is notably wetter, receiving 111 mm (4.4 in) of rain across 19 days. The humidity also climbs in November to 91%, compared to 79% in May. For a closer look at the November weather specifics, visit Caernarfon weather in November.
May and December present distinct weather patterns, reflecting the transition from spring to winter. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 28°C (82°F), with an average of 12°C (53°F), creating a pleasant, albeit variable climate; however, it sees around 71 mm (2.8 in) of precipitation over about 12 days, resulting in a humidity level of 79%. In contrast, December experiences colder temperatures, with a minimum of -1°C (30°F) and a maximum of 13°C (56°F) and an average of only 7°C (45°F), coupled with increased precipitation of 129 mm (5.1 in) over approximately 20 days, leading to a higher humidity of 89%. For a closer look at the specifics of December weather, check out Caernarfon weather in December.
As May unfolds in Caernarfon, the weather showcases a delightful transition towards warmth, setting it apart from the chillier months of spring. With temperatures climbing to a comfortable average, this month often invites both locals and visitors to enjoy outdoor activities amidst blossoming landscapes. However, a healthy dose of precipitation remains, reminding us that Welsh weather can be unpredictable. Humidity levels are relatively high, creating a lush environment that enhances the region's natural beauty. For those intrigued by Caernarfon's climate details, be sure to explore more at Caernarfon Climate.