Last updated: March 17, 2025
In Portstewart, United Kingdom, August presents a cool yet captivating climate, where the maximum temperature hovers around 18°C (66°F) and the average temperature settles at a refreshing 14°C (58°F). With a minimum temperature reaching 11°C (52°F), visitors can expect a comfortable respite from the summer heat. However, this month is also characterized by considerable rainfall, accumulating to 146 mm (5.7 in) over the course of 20 days, contributing to an impressive humidity level of 86%. Whether basking in the mild weather or exploring the stunning coastal scenery, August in Portstewart offers a unique blend of tranquility and charm influenced by its diverse atmospheric conditions.
In August, Portstewart enjoys mild temperatures that reflect the peak of summer, with minimums around 11°C (52°F) and maximums reaching up to 18°C (66°F). The average temperature settles at a comfortable 14°C (58°F), making it one of the warmest months of the year. This consistent warmth marks a transition from the relatively cooler early summer months, with temperatures gradually rising since June. As the month progresses, visitors can expect pleasant days that are perfect for exploring the stunning coastal scenery, while evenings remain comfortably cool, allowing for delightful outings under the soft glow of twilight. Overall, August offers a inviting contrast to the chill of winter, capturing the essence of summer in this charming seaside town.
In August, Portstewart experiences a notable uptick in precipitation, with 146 mm (5.7 in) of rainfall spread over 20 days. This makes it one of the wettest months of the year, following closely behind October's average of 161 mm (6.3 in). The increase in precipitation during this summer month contrasts sharply with the drier April and May, which collectively see significantly less rainfall. As the summer transitions into autumn, the weather becomes more unsettled, hinting at the impending shift toward the wetter fall months that follow. This trend reflects the region's characteristic mild maritime climate, where summer rain can often catch locals by surprise.
August in Portstewart, United Kingdom, sees humidity levels holding steady at 86%, mirroring the cozy, damp atmosphere of July. This consistency suggests a typical summer climate where the warmth and moisture intertwine, creating a pleasant, if slightly humid, environment. As the summer months progress, humidity slightly dips from 87% in January to its lowest in May at 82%, only to rise again as autumn approaches. The lingering high humidity in August hints at the shifting weather patterns that will soon lead to the even wetter months of September and October, where figures climb to 88% and 89%, respectively. Overall, August serves as a transitional month, balancing the warmth of summer with the forthcoming crispness of fall, all wrapped in a familiar blanket of humidity.
In August, Portstewart, United Kingdom, experiences a UV Index of 6, categorized as high. This signifies a notable shift from the very high levels of 8 seen in the preceding months of June and July, where sun protection became crucial, allowing only 15 minutes of unprotected exposure before sunburn could occur. In contrast, August offers a more manageable burn time of 25 minutes, encouraging outdoor activities with some caution. As summer draws to a close, the UV levels begin to decline, forecasting a gradual return to moderate indices in September. Understanding these trends is essential for enjoying the sun safely throughout the season. For more detailed information, check the Portstewart UV Index.
UV Risk Categories
August in Portstewart, United Kingdom, offers a delightful transition into the autumn months, boasting around 357 hours of sunshine. This figure, while slightly lower than the vibrant peak of July at 404 hours, still reflects a generous summer glow that invites outdoor adventures. Following May’s impressive 405 hours, the sunshine hours exhibit a graceful decline through the late summer and into the autumn, marking a notable contrast to the winter months that see a stark reduction, such as January with just 72 hours. As holidaymakers bask in the warm rays of August, they can take advantage of the lingering summer light before the days grow shorter, embracing all that Portstewart has to offer during this beautiful time of year.
In Portstewart during August, the likelihood of sunny weather dips to 19%, making it one of the less sunny months of the year. This trend follows a pattern where summer months like May and April exhibit higher chances of sunshine, peaking at 43% and 36%, respectively. As the season progresses into June and July, the percentage continues to decline, hovering around 22% and 24%. Comparatively, the late summer and early autumn months—specifically September with 23%—offer only a slight improvement in sunshine probability. This suggests that while August may crown the summer season, it tends to deliver less sun than its preceding months, leaving visitors and locals alike hopeful for those rare sunny days.
As summer transitions to autumn, August in Portstewart, United Kingdom, offers a delightful average of 14 hours of daylight. This month marks a gentle decline from the peak brightness of June and July, when daylight extended up to 17 and 16 hours, respectively. However, August still provides ample opportunity for outdoor activities and leisure, creating a perfect balance between warmth and daylight. As the days grow shorter again, this shift signals the approach of fall, evoking a sense of change while still allowing for enjoyable summer evenings. Looking ahead, September brings a further decrease to 12 hours of daylight, emphasizing the cyclical nature of the seasons as the year progresses.
In August, the wind in Portstewart tends to calm down significantly, averaging a gentle 4.5 m/s (10 mph), making it one of the quieter months of the year in terms of breezy conditions. This drop follows a gradual decrease from the higher wind speeds seen in July at 3.8 m/s (8 mph). As summer progresses, the prevailing winds shift, leading to a brief respite from the robust gusts that characterize the earlier months. Comparatively, the spring months display more vigor, particularly in February with robust winds reaching up to 10.5 m/s (23 mph). As autumn approaches, the winds begin to pick up again, but August remains a tranquil interlude, offering a perfect setting for those who enjoy the soothing touch of a mild coastal breeze.
The weather in Portstewart 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 Portstewart and find detailed weather information for every month.
Comparing the weather in August and January reveals distinct differences in temperature and precipitation patterns. August experiences milder temperatures, with averages around 14°C (58°F) and maximums reaching up to 18°C (66°F), while January's typical max is only 13°C (56°F) and an average of 7°C (45°F). Precipitation is more frequent in August, occurring on about 20 days with a total of 146 mm (5.7 in), whereas January has slightly less rainfall, totaling 109 mm (4.3 in) over 17 days. Both months have high humidity, with August at 86% and January slightly higher at 87%. For more specific details on January weather, you can check Portstewart weather in January.
August generally presents milder weather compared to February, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 18°C (66°F), and an average of 14°C (58°F). In contrast, February sees cooler temperatures, with averages between 1°C (34°F) and 12°C (54°F), leading to an overall chillier experience. Both months feature high humidity levels at 86%, contributing to a similar feel in moisture, though August typically experiences slightly more precipitation at 146 mm (5.7 in) over 20 days compared to February's 132 mm (5.2 in) over 18 days. For more details on February's weather, you can check Portstewart weather in February.
When comparing the weather in August and March, it's evident that August is significantly warmer, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 18°C (66°F). In contrast, March presents much cooler conditions, with temperatures varying from -1°C (31°F) to 12°C (54°F) and an average temperature of only 7°C (45°F). Precipitation is relatively high in both months, with August receiving 146 mm (5.7 in) over approximately 20 days, while March sees slightly less rainfall at 112 mm (4.4 in) across 18 days. Interestingly, both months exhibit similar humidity levels at 86%, indicating a damp atmosphere throughout the year. For more detailed information, you can check the Portstewart weather in March.
In comparing the weather patterns of August and April, we see notable differences in temperature and precipitation. August experiences milder temperatures, with a minimum of 11°C and an average of 14°C, compared to April's lower minimum of 2°C and average of 8°C. Additionally, August has a higher maximum temperature of 18°C, whereas April peaks at 13°C. Precipitation is also significantly greater in August, with 146 mm over 20 days, contrasted with April’s 55 mm across 12 days. Humidity levels remain similar in both months, with August at 86% and April at 85%. For more detailed insights, visit Portstewart weather in April.
When comparing the weather in August and May, it’s clear that August tends to be warmer and wetter. In August, temperatures range from a minimum of 11°C (52°F) to a maximum of 18°C (66°F), with an average of 14°C (58°F). In contrast, May sees cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 16°C (61°F), averaging only 10°C (50°F). Additionally, August experiences significantly more precipitation, totaling 146 mm (5.7 in) over 20 days, compared to May's 72 mm (2.9 in) over 13 days. Humidity levels are also higher in August at 86%, compared to 82% in May. For more details on May's weather, visit Portstewart weather in May.
In comparing the weather of August and June, August tends to be slightly warmer, with minimum temperatures averaging 11°C (52°F) compared to June's 8°C (47°F). The average temperature in August reaches 14°C (58°F), which is 2 degrees warmer than June's average of 12°C (54°F). However, both months experience significant precipitation, with August seeing 146 mm (5.7 in) over approximately 20 days, while June has 105 mm (4.1 in) over 17 days. Interestingly, humidity levels are also slightly higher in August at 86%, compared to June's 84%. For more details on June weather, you can visit Portstewart weather in June.
August weather shows slightly cooler temperatures compared to July, with a maximum of 18°C (66°F) versus July's 19°C (67°F). Both months have the same minimum temperature of 11°C (52°F) and similar average temperatures, but August receives significantly more precipitation, totaling 146 mm (5.7 in) across 20 days, compared to July’s 110 mm (4.3 in) over 17 days. Despite the increase in rainfall, both months maintain a high humidity level of 86%. For a detailed look at the weather patterns in July, you can visit Portstewart weather in July.
In comparing the weather of August and September, both months exhibit relatively mild temperatures, but with some differences. August has higher average temperatures, with a minimum of 11°C (52°F) and a maximum of 18°C (66°F), compared to September's minimum of 9°C (49°F) and maximum of 17°C (64°F). Additionally, August experiences more precipitation at 146 mm (5.7 in) over 20 days, while September sees slightly less at 117 mm (4.6 in) over the same number of days. Interestingly, humidity levels remain high in both months, with September recording a slightly higher humidity of 88% compared to 86% in August. For more detailed information, you can check Portstewart weather in September.
In comparing August and October weather, we see distinct shifts as summer gives way to autumn. August features milder temperatures, with averages around 14°C (58°F) and a maximum of 18°C (66°F), while October cools down considerably, with average temperatures dropping to 12°C (53°F) and a maximum of 16°C (62°F). Both months experience considerable rainfall, but October sees slightly more precipitation at 161 mm (6.3 in) over 24 days, compared to August's 146 mm (5.7 in) over 20 days. Humidity also rises slightly in October to 89% compared to 86% in August, adding to the damp feel of the season. For a closer look at conditions in October, visit Portstewart weather in October.
August and November exhibit noticeable differences in weather conditions. In August, temperatures range from a minimum of 11°C (52°F) to a maximum of 18°C (66°F), with an average of 14°C (58°F). The month experiences considerable precipitation, totaling 146 mm (5.7 in) over about 20 days, with humidity levels at 86%. In contrast, November sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 14°C (58°F), averaging 9°C (49°F). Precipitation increases slightly to 156 mm (6.2 in) and occurs on approximately 23 days, with humidity rising to 90%. For more detailed weather insights, visit Portstewart weather in November.
In comparing the weather between August and December, one can observe notable differences in temperature and precipitation. August generally experiences milder conditions, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 18°C (66°F), while December sees much cooler averages, with temperatures dropping to a minimum of 2°C (35°F) and peaking at 12°C (54°F). Precipitation levels also differ, as December records higher rainfall at 166 mm (6.5 in) over 23 days, compared to August's 146 mm (5.7 in) over 20 days. Interestingly, both months maintain a humidity level of 86%, highlighting a persistent dampness throughout the year. For a more detailed look at December weather patterns, visit Portstewart weather in December.
In August, Portstewart experiences a shift in weather, marked by relatively mild temperatures compared to the cooler months that precede it. With an average temperature of 14°C (58°F), the warmth begins to envelop the area, though it still occasionally dips to cooler nights. This month is notable for its increased precipitation, as rain graces the region on about 20 days, contributing to a humid atmosphere with 86% humidity that feels more pervasive than in prior summer months. As the summer progresses towards autumn, this blend of warmth and moisture sets a unique stage for those looking to enjoy the vibrant coastal charm of Portstewart. For a deeper understanding of what to expect during your visit, be sure to check Portstewart Climate.