Last updated: March 17, 2025
In Caernarfon, United Kingdom, August offers a diverse range of weather conditions that appeal to both locals and visitors. With a maximum temperature reaching 26°C (79°F) and an average of 16°C (61°F), the summer warmth is palpable. However, the month also brings its share of rain, accumulating around 105 mm (4.1 in) over 19 days, contributing to a humidity level of 79%. This blend of sun and showers creates a unique atmosphere, making August a time of both vibrant outdoor activities and cozy indoor retreats.
In August, Caernarfon experiences a delightful peak in summer temperatures, with minimums around 8°C (46°F) and maximums reaching up to 26°C (79°F). This month showcases a pleasant average temperature of 16°C (61°F), making it one of the warmest times of the year. As days lengthen and the sun shines brighter, the temperatures steadily rise since May, creating a warm and inviting atmosphere for locals and visitors alike. This charming coastal town flourishes under August's warmth, providing the perfect backdrop for exploring its rich history and stunning landscapes. As summer winds down, these warmer days offer a final taste of summer before the cooler months set in.
In August, Caernarfon experiences a noteworthy surge in precipitation, with 105 mm (4.1 in) of rainfall spread over 19 days. This marks a slight increase compared to the previous months, reflecting the culmination of a wet summer, characterized by increased humidity and often overcast skies. Following July's 82 mm and 15 days of rain, August's deluge signals a transition towards the wetter autumn months ahead. As the holiday season wanes and the school year begins, locals and visitors alike can expect frequent showers that blend into the picturesque Welsh landscape, enhancing its lush greenery. This pattern sets the stage for September's anticipated rain, hinting at the steady rhythm of precipitation in Caernarfon throughout the year.
In August, Caernarfon experiences a humidity level of 79%, which aligns closely with the drier conditions of July. This slight increase indicates a shift toward the onset of autumn, yet remains relatively comfortable compared to the higher humidity levels found in the early and late months of the year. As summer wanes, humidity levels start to rise again in September, reaching 85%, foreshadowing the more humid months ahead in the fall. Overall, the humidity trends in Caernarfon reveal a steady ebb and flow throughout the year, with a notable drop during summer before gradually climbing back up as autumn sets in.
In August, Caernarfon, United Kingdom, experiences a notable decline in the UV Index compared to the peak summer months, yet still retains a high UV Index of 7. This indicates a 25-minute burn time, reminding residents and visitors alike to take appropriate sun safety measures during outdoor activities. The moderate UV levels earlier in the year, peaking at 8 in June and July, illustrate a clear seasonal trend, as the days gradually shorten and the sun’s intensity shifts towards autumn. As September rolls in, the UV Index will further drop to 5, encouraging a smoother transition into milder weather. Stay informed and prepared by checking the latest updates on the Caernarfon UV Index.
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In Caernarfon, August shines with a generous 383 hours of sunshine, settling comfortably among the sun-drenched days of summer. This month continues a trend of abundant sunlight that began in late spring, peaking in July with 421 hours, before gradually receding as autumn approaches. Notably, August retains a robust amount of sunshine compared to earlier months, like January with a mere 93 hours. As visitors bask in the warm rays, they can reflect on the striking turnaround from the quiet, gray skies of winter to the vibrant, sunlit days of summer, all while anticipating a refreshing transition as the seasons change and September offers 315 hours of light.
In Caernarfon, United Kingdom, the likelihood of sunny weather in August presents a modest 24% chance of sunshine. This figure aligns closely with the sunniest months of the year, such as April at 46%, but remains lower than the peak of summer in July, which boasts a 35% probability. Interestingly, the chances of sun in August do show a slight decline from the heights of summer, falling just below the average of the previous months, including January through July. As summer wanes, the region transitions towards its cooler months, with September and October offering even dimmer prospects. Overall, while August offers some potential for sunny days, it’s clear that visitors and residents alike may want to prepare for a mix of weather as the season shifts.
In August, Caernarfon enjoys a delightful 14 hours of daylight, marking a gentle decline from the peak sunshine of 16 hours experienced in the previous months of June and July. This gradual shift toward shorter days hints at the approaching autumn, as the daylight hours steadily decrease leading into September, which sees 12 hours of sunlight. The trends over the year reveal a beautiful rhythm of light, with long, bright summer days giving way to the cozy, softer illumination of fall. As the seasons change, the contrasting lengths of daylight not only illustrate the passage of time but also invite residents and visitors to savor each moment of the lingering summer warmth.
In Caernarfon, the August winds offer a gentle reprieve, with an average speed of 3.8 m/s (8 mph). This month reflects a slight uptick in wind activity compared to the calm of July, which recorded its lowest at 2.7 m/s (6 mph). As summer wanes, August's breezes provide a pleasant shift, reminiscent of the spring gusts that average higher in earlier months. Interestingly, the wind speeds remain modest, hovering around the 3 to 5 m/s range throughout the late summer, before picking up again in October. Overall, Caernarfon’s August winds are an embrace of calmness, preparing the landscape for the brisker autumn breezes ahead.
The weather in Caernarfon changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August'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.
In comparing the weather between August and January, notable differences emerge. August experiences milder temperatures, with averages reaching 16°C (61°F) and maximums peaking at 26°C (79°F), while January is considerably colder, with an average of only 6°C (43°F) and maximums at 14°C (57°F). Precipitation is higher in August, accumulating 105 mm (4.1 in) over 19 days, compared to January’s 77 mm (3.0 in) spread across 13 days, although January boasts slightly higher humidity at 89% compared to August's 79%. For a closer look at January weather specifics, visit Caernarfon weather in January.
August and February display contrasting weather patterns in terms of temperature, precipitation, and humidity. In August, temperatures range from a low of 8°C (46°F) to a high of 26°C (79°F), with an average of 16°C (61°F). This month experiences 105 mm (4.1 in) of rainfall over 19 days, accompanied by a moderate humidity level of 79%. In stark contrast, February sees much cooler temperatures, with a minimum of -4°C (26°F), an average of 6°C (44°F), and a maximum of 18°C (65°F). The precipitation in February is slightly lower at 103 mm (4.1 in) across 16 days, but the humidity is higher at 88%. For more details on February weather, visit Caernarfon weather in February.
When comparing the weather in August and March, some notable differences emerge. August typically enjoys milder temperatures, ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F), with an average of 16°C (61°F). In contrast, March is significantly cooler, with temperatures dipping as low as -5°C (23°F) and averaging 7°C (45°F). Both months experience similar levels of precipitation, with August receiving 105 mm (4.1 in) over 19 days and March slightly less at 104 mm (4.1 in) over 18 days. Humidity levels are also higher in March, at 86%, compared to 79% in August. For more details on March weather, you can visit Caernarfon weather in March.
When comparing the weather in August and April, notable differences emerge. August tends to be warmer, with average temperatures ranging from 8°C (46°F) to 26°C (79°F), while April is cooler, with temperatures spanning from -1°C (31°F) to 22°C (72°F). Although August experiences more precipitation overall, with 105 mm (4.1 in) over 19 days, April has a lighter rainfall of 55 mm (2.2 in) across 11 days. Additionally, humidity levels are slightly higher in April at 84%, compared to 79% in August. For more detailed information, you can check Caernarfon weather in April.
In comparing the weather between August and May, notable differences emerge. August enjoys a milder temperature range with a minimum of 8°C and an average of 16°C, while May experiences cooler conditions, with a minimum of 0°C and an average of 12°C. Interestingly, May can reach a higher maximum temperature of 28°C compared to August's 26°C. Additionally, precipitation in August is markedly higher at 105 mm over 19 days, compared to May's 71 mm over 12 days. Both months exhibit the same humidity level of 79%, creating a consistently damp atmosphere. For more insights into May weather, check Caernarfon weather in May.
When comparing the weather in August and June, August tends to be warmer, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F), compared to June's milder range of 5°C (41°F) to 29°C (84°F). Despite June boasting a warmer maximum temperature, its overall average is slightly cooler than August's. Precipitation levels are relatively similar, with August experiencing 105 mm (4.1 in) over 19 days, while June has 91 mm (3.6 in) over 14 days. Humidity levels are comparable as well, with August at 79% and June slightly higher at 81%. For a closer look at June's specific conditions, you can check out Caernarfon weather in June.
In comparing the weather of August to July, we see some notable differences. August tends to be slightly warmer overall with maximum temperatures reaching up to 26°C (79°F), compared to July's peak of 29°C (85°F). However, the minimum temperatures are comparable, with August ranging from 8°C (46°F) to 7°C (45°F) in July. Notably, August experiences more precipitation, totaling 105 mm (4.1 in) over 19 days, while July sees 82 mm (3.2 in) over 15 days. Humidity levels remain similar, slightly higher in August at 79% compared to July's 78%. For a more detailed look at July's conditions, you can visit Caernarfon weather in July.
August and September weather present a notable shift as summer transitions into autumn. In August, temperatures range from a minimum of 8°C (46°F) to a maximum of 26°C (79°F), with an average temperature of 16°C (61°F). The month experiences significant rainfall, accumulating about 105 mm (4.1 in) over 19 days, and humidity levels hover around 79%. In contrast, September displays cooler averages, with temperatures dipping to a minimum of 3°C (38°F) and averaging 14°C (57°F), yet it can still reach up to 27°C (81°F). Precipitation is slightly less, totaling 98 mm (3.9 in) over 15 days, but humidity increases to 85%. For more detailed insights, you can view Caernarfon weather in September.
In August, the weather is generally milder and more comfortable, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F) and an average of 16°C (61°F). Despite enjoying warmer days, August also sees significant rainfall, with 105 mm (4.1 in) of precipitation spread over 19 days and humidity levels averaging 79%.
In contrast, October brings a notable drop in temperatures, with lows plummeting to -2°C (29°F) and an average temperature of 11°C (53°F), peaking at 22°C (71°F). The month tends to be wetter, with precipitation measuring 128 mm (5.1 in) across 18 days and a higher humidity of 90%. For a closer look at October's weather specifics, you can check Caernarfon weather in October.
In August, the weather is typically milder, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F) and an average of 16°C (61°F). This month experiences around 105 mm (4.1 in) of precipitation over 19 days, with a humidity level of 79%. In contrast, November sees a significant drop in temperatures, with a minimum of -1°C (31°F), an average of 9°C (48°F), and a maximum of 15°C (60°F). Precipitation slightly increases to 111 mm (4.4 in), still occurring over 19 days, but the humidity rises to 91%. This comparison highlights the transition from the warmer, more humid days of August to the cooler, wetter conditions of November. For more insights into November weather, you can check Caernarfon weather in November.
In August, the weather is generally mild, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F) and an average of 16°C (61°F). Despite the warmth, precipitation is relatively high, totaling 105 mm (4.1 in) over 19 days, with humidity at 79%. In contrast, December brings much colder conditions, with temperatures dipping to a minimum of -1°C (30°F) and averaging around 7°C (45°F), peaking at 13°C (56°F). It experiences a slightly higher precipitation level of 129 mm (5.1 in) across 20 days, along with increased humidity reaching 89%. For a detailed look at weather conditions in December, you can visit Caernarfon weather in December.
August in Caernarfon brings a delightful blend of warmth and humidity, with temperatures reaching an enjoyable peak compared to the cooler months. While the average temperature hovers around a comfortable 16°C (61°F), the occasional highs can soar to a pleasant 26°C (79°F), offering a taste of summer's warmth before the onset of autumn. However, this month is also characterized by frequent rainfall, with precipitation occurring on nearly two-thirds of the days. Despite the wet weather, the lush landscapes and vibrant atmosphere make August a unique time to experience Caernarfon. For a detailed look at how this month compares to others throughout the year, visit Caernarfon Climate.