Last updated: March 17, 2025
Experience the charm of Porthmadog in August, where the weather offers a delightful mix of warmth and moisture. With maximum temperatures peaking at 24°C (75°F) and an inviting average of 15°C (60°F), this month presents a moderate climate perfect for exploration. However, expect frequent encounters with rain, as 162 mm (6.4 in) of precipitation is spread across 22 rainy days, resulting in an average humidity of 79%. Whether you're wandering along the scenic coast or enjoying local attractions, prepare for a refreshing summer experience in this picturesque town.
In August, Porthmadog enjoys a pleasant summer ambiance, marked by a minimum temperature of 9°C (49°F) and an average of 15°C (60°F), ideal for outdoor activities. The maximum temperature reaches a comfortable 24°C (75°F), making it one of the warmest months of the year. This gentle warmth follows the gradual rise experienced from earlier months, with July showcasing similar stats yet slightly cooler at a maximum of 25°C (77°F). As August progresses, temperatures remain stable, contrasting sharply with the colder winter months, like January when the maximum barely grazes 13°C (55°F). Overall, August serves as a delightful bridge between summer's warmth and the crispness of autumn, providing a perfect backdrop for exploring Porthmadog's stunning coastal scenery.
August in Porthmadog is characterized by a significant uptick in precipitation, with 162 mm (6.4 in) of rain falling over 22 days. This marks one of the wetter months of the year, rivaling February in total rainfall. The steady increase in precipitation from June through August suggests a trend towards a muggy summer, where the lush green landscapes receive ample moisture. As the summer transitions to autumn, rainfall continues to be abundant, setting the stage for the even heavier downpours that follow in the subsequent months, particularly October and December. Such patterns highlight the region's tendency towards a wet climate, making August a month where umbrellas become essential accessories.
In Porthmadog, August brings a gradual return to humidity levels around 79%, which aligns closely with the less humid months of July and May. This summer month marks a subtle shift in atmospheric moisture, as humidity levels begin to stabilize after the peaks of late autumn and winter, where they hover around 89% to 91%. Compared to the early part of the year, August showcases a noticeable decrease in humidity, following a trend of falling moisture levels from the spring months through the summer. As the region transitions into September and back toward higher humidity again, August serves as a brief respite, making it a sweet spot for enjoying the coastal beauty without the suffocating dampness often characteristic of the British landscape.
In August, Porthmadog experiences a UV Index of 7, indicating a high level of sun exposure and a burn time of just 25 minutes. This trend marks a slight dip from July's peak of 8, which was categorized as very high with a burn time of only 15 minutes. As the summer months progress, the UV Index remains significant, reflecting the importance of sun protection during this time. Comparatively, earlier months like March and April start with lower indices of 4 and 5, gradually climbing as the season unfolds. It's crucial for residents and visitors alike to remain vigilant about sun safety in August, as UV levels can still pose a risk. For detailed information, visit Porthmadog UV Index.
UV Risk Categories
August in Porthmadog, United Kingdom, basks in an impressive 383 hours of sunshine, marking it as one of the last golden months of summer. Following the peak of July with 421 hours, August sees a gentle decline in sunlight, yet it remains vibrant and bright compared to the chillier months ahead. From the gradual ascent of sunny days starting in January with just 93 hours to the peak of 415 hours in May, the trend towards summer is unmistakable. However, as the seasons shift, the sun's embrace begins to loosen, with September already bringing a notable drop to 315 hours. This rhythm of increasing and decreasing sunlight truly encapsulates the enchanting charm of the Welsh coast, making August a cherished time for locals and visitors alike.
In Porthmadog, United Kingdom, the likelihood of sunny weather in August stands at 25%, showing a dip from the more promising sunny spells of April (46%) and July (36%). This slight decline is reflective of the overall trend as summer transitions into autumn, where the chance of sun begins to wane. Interestingly, while August typically boasts some of the season's warmth, the variability in weather patterns means that residents and visitors can expect a mix of sunshine and cloud cover. So, while there's a moderate chance for sunny days, it's wise to prepare for the unpredictability of late summer weather in this charming coastal town.
In Porthmadog, United Kingdom, August offers a delightful 14 hours of daylight, marking a gentle transition from the peak summer brightness of June and July, each boasting 16 hours. As the days begin to shorten, the rich glow of August sunlight still provides ample time for outdoor adventures and late evening strolls along the coastline. Following August, daylight gradually recedes, dropping to 12 hours in September and further to 10 hours in October, revealing a consistent trend of diminishing light as the year progresses toward winter. This gradual shift underscores the beauty of summer's lingering warmth, with August serving as a bridge between the vibrant long days and the cozy, shorter days ahead.
In August, Porthmadog experiences a moderate average wind speed of 4.4 m/s (10 mph), offering a pleasant balance for both locals and visitors. Following the gentler breezes of July, which recorded the lowest wind speed of 3.2 m/s (7 mph), August sees a slight uptick, reminiscent of the earlier months of spring. This makes it a great time for outdoor activities, as the wind is neither too strong nor too calm, creating an inviting atmosphere. As summer transitions into autumn, the winds begin to pick up again in September and October, hinting at the seasonal changes ahead. Overall, August serves as a delightful midpoint, blending mild winds with the lingering warmth of summer.
The weather in Porthmadog 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 Porthmadog and find detailed weather information for every month.
August presents a much warmer climate than January, with average temperatures ranging from 15°C (60°F) to a maximum of 24°C (75°F) compared to January's cooler averages of 6°C (43°F) and highs of just 13°C (55°F). The summer month also experiences significantly higher precipitation—162 mm (6.4 in) over 22 days—compared to January's 121 mm (4.8 in) spread over 16 days. Despite January’s lower rainfall, it has a slightly higher humidity level of 89% compared to August’s 79%. For more detailed insights, you can check Porthmadog weather in January.
August and February present contrasting weather patterns. August typically enjoys milder temperatures, with a minimum of 9°C (49°F) and an average of 15°C (60°F), peaking at a maximum of 24°C (75°F). The month experiences significant rainfall, accumulating 162 mm (6.4 in) over about 22 days, accompanied by a relatively high humidity level of 79%. In contrast, February is much colder, with temperatures ranging from a minimum of -3°C (28°F) to an average of 6°C (43°F) and a maximum of 15°C (60°F). Despite similar precipitation levels of 162 mm (6.4 in), February sees fewer rainy days at 19 and a higher humidity rate of 88%. For a closer look at February's weather specifics, you can check Porthmadog weather in February.
In comparing the weather between August and March, it is evident that August generally offers much warmer temperatures, with averages around 15°C (60°F) and maximums reaching 24°C (75°F). In contrast, March experiences a chillier climate, with average temperatures hovering at 7°C (44°F) and maximums only reaching 16°C (61°F). Precipitation levels are relatively similar, with August receiving 162 mm over 22 days and March slightly less at 152 mm over 19 days. However, March has a higher humidity rate, at 86%, compared to August's 79%. For more details, check out Porthmadog weather in March.
When comparing the weather in August and April, it's clear that August is significantly warmer and wetter than April. In August, temperatures range from a minimum of 9°C (49°F) to a maximum of 24°C (75°F), with an average of 15°C (60°F), while April experiences cooler temperatures ranging from 0°C (33°F) to 19°C (66°F), averaging 8°C (47°F). Additionally, August sees much higher precipitation, with 162 mm (6.4 in) over 22 days, compared to April's 62 mm (2.4 in) over 12 days. Interestingly, despite the milder temperatures, April has slightly higher humidity at 84%, compared to August's 79%. For more detailed information, you can check Porthmadog weather in April.
When comparing the weather in August and May, several notable differences emerge. August experiences a milder temperature range with average lows of 15°C (60°F) compared to May's cooler average of 11°C (52°F). While both months have similar humidity levels at 79%, August sees significantly more rainfall, with 162 mm (6.4 in) over 22 days, compared to May's 87 mm (3.4 in) over just 12 days. This makes August a wetter month overall, even as the temperatures are relatively warmer than those in May. For a closer look at the specifics of May weather, you can visit Porthmadog weather in May.
In comparing the weather between August and June, August tends to be slightly warmer, with average temperatures reaching 15°C (60°F) compared to June's average of 14°C (57°F). However, June boasts a higher maximum temperature of 26°C (79°F), while August peaks at 24°C (75°F). Precipitation is more prominent in August, with 162 mm (6.4 in) falling over 22 days, in contrast to June's 106 mm (4.2 in) across 16 days. Humidity levels are relatively similar, with August at 79% and June slightly higher at 81%. For those interested in the specifics of June weather, you can check Porthmadog weather in June.
In comparing the weather of August and July, August shows a slight increase in humidity at 79%, compared to July's 78%. The temperature remains fairly consistent between the two months, with average temperatures around 15°C (60°F) in both, while the maximum in August averages 24°C (75°F), just slightly less than July's 25°C (77°F). However, August is significantly wetter, receiving 162 mm (6.4 in) of precipitation over 22 days, compared to July's 105 mm (4.1 in) over just 15 days. For more detailed information, you can explore Porthmadog weather in July.
August and September display noticeable differences in weather, with both months experiencing mild temperatures but distinct characteristics. In August, temperatures range from a minimum of 9°C (49°F) to a maximum of 24°C (75°F), with an average of 15°C (60°F). Precipitation is relatively high at 162 mm (6.4 in) over 22 days, contributing to a humidity level of 79%. In contrast, September sees slightly cooler conditions, with a minimum of 6°C (42°F) and a maximum of 26°C (78°F), while averaging 14°C (57°F). Although precipitation decreases to 146 mm (5.7 in) over 18 days, humidity rises to 85%. For more details on September weather specifically, you can visit Porthmadog weather in September.
August and October present contrasting weather conditions. In August, temperatures range from a minimum of 9°C (49°F) to a maximum of 24°C (75°F), with an average of 15°C (60°F). The month sees relatively high humidity at 79% and experiences 162 mm (6.4 in) of precipitation over 22 days. In contrast, October brings cooler temperatures, with a minimum of 1°C (33°F) and an average of 11°C (53°F), peaking at 20°C (68°F). This month is wetter, receiving 206 mm (8.1 in) of rain while maintaining elevated humidity at 90% over the same number of days. For more detailed insights, check Porthmadog weather in October.
August and November offer contrasting weather patterns in Porthmadog. In August, temperatures are generally milder, with averages around 15°C (60°F) and maximums reaching up to 24°C (75°F), accompanied by a relative humidity of 79%. However, this month also sees significant rainfall, with about 162 mm (6.4 in) over 22 days. In contrast, November brings cooler temperatures, with averages falling to 8°C (48°F) and maximums of only 14°C (58°F). Precipitation increases slightly to 176 mm (6.9 in), occurring on 21 days, and humidity rises to 91%. For more detailed insights on November weather specifically, you can check out Porthmadog weather in November.
Comparing the weather in August and December reveals a significant shift in conditions. In August, temperatures range from a low of 9°C (49°F) to a pleasant high of 24°C (75°F), accompanied by average humidity of 79% and 162 mm (6.4 in) of precipitation over 22 days. In contrast, December sees much colder temperatures, with a minimum of -2°C (29°F) and a maximum of 12°C (54°F). Although December averages a lower temperature, it experiences higher precipitation at 203 mm (8.0 in) over 24 days, and humidity rises to 89%. For more detailed information on December weather, check this link: Porthmadog weather in December.
August in Porthmadog brings a blend of warm days and frequent rain showers, setting it apart from the milder months that precede it. With maxima reaching a pleasant 24°C, it offers some of the year's highest temperatures, while the average remains a comfortable 15°C. However, the high humidity and significant rainfall—spanning 22 days—often remind residents of the unpredictable nature of summer in Wales. Despite this, August is a time when the lush landscape thrives, making it a unique month in Porthmadog's climate calendar. For a deeper look into what to expect, explore Porthmadog Climate.