August Weather in Glasgow, United Kingdom

Last updated: March 17, 2025

In August, Glasgow experiences a fascinating blend of temperatures and weather conditions. With a maximum of 27°C (80°F) and an average of 15°C (59°F), it offers warm days that invite outdoor activities. However, visitors should be prepared for cool evenings, with minimum temperatures dipping to 6°C (43°F). This month is also characterized by high humidity levels at 82%, creating a muggy atmosphere, especially during rainfall. In fact, 127 mm (5.0 in) of precipitation falls over approximately 19 days, making it one of the wetter months. Regardless of the drizzle, August showcases Glasgow's vibrant nature and lively spirit, inviting exploration and adventure in every corner of the city.

August Temperature in Glasgow

In August, Glasgow experiences a pleasant warmth, with temperatures reflecting a peak summer vibe. The month's minimum temperature stays around a comfortable 6°C (43°F), while the average hovers at a mild 15°C (59°F). Max temperatures can reach a delightful 27°C (80°F), providing plenty of sunshine and opportunities for outdoor activities. This gradual rise in temperature from the cooler months of spring and early summer underscores the city's transition to a more temperate climate, making August an ideal time for visitors to enjoy Glasgow's vibrant atmosphere and lush scenery before the autumn chill sets in.

August Weather in Glasgow: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Glasgow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404143465257595855504441
Data source: Temperature data for Glasgow generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Glasgow

In August, Glasgow experiences a notable spike in precipitation, receiving approximately 127 mm (5.0 in) of rain over 19 days. This increase is part of a broader trend observed during the summer months, with July's precipitation at 98 mm (3.8 in) across 15 days, indicating that late summer often brings more frequent and intense rain showers. As the city transitions into autumn, August's rainfall prepares the landscape for the wetter conditions typical in September and October. Consequently, residents can expect a lush environment, although the frequent downpours may encourage a need for umbrellas and raincoats during this vibrant yet soggy month.

August Precipitation Trends in Glasgow

The chart displays monthly precipitation patterns in Glasgow, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec8412910644671139812791130105117
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Glasgow

In August, Glasgow experiences a humidity level of 82%, consistent with the slightly lower figures of summer but still above the year's average. This month marks a subtle transition as humidity begins to rise again in September, reaching 88%. The gradual decline from a high of 90% in January to August demonstrates a generally humid climate, with levels peaking once more in the colder months. As summer wanes, the return to elevated humidity hints at the changing seasons, encouraging a cozy atmosphere that precedes the wetter fall months. Overall, Glasgow's climate offers a unique blend of moisture and coolness that shapes its characteristic charm.

August Average Humidity in Glasgow

This chart illustrates the average monthly humidity levels in Glasgow, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Glasgow

In August, Glasgow experiences a UV Index of 6, placing it in the high exposure category, with a burn time of approximately 25 minutes. This marks a slight decrease from the very high levels seen in the preceding months of June and July, where residents and visitors needed to be especially cautious about sun exposure. As summer winds down, this reduction in UV intensity is a reminder to enjoy the remaining sunny days while still being vigilant about skin protection. Overall, the trend in Glasgow’s UV indices shows a gradual decline as the year progresses, moving from the peak of August back towards the lower levels of autumn. For ongoing updates and further insights, check the Glasgow UV Index.

Maximum UV Index Levels in Glasgow for August

The chart shows the monthly maximum UV Index (UVI) for Glasgow in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec123568865311
Data source: Glasgow August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Glasgow

In August, Glasgow greets the summer with a delightful 344 hours of sunshine, a charming continuation of the sunny streak established in July. This month marks a peak in brightness, as daylight gradually begins to wane in September, which sees a notable drop to 274 hours. The trend from April through August showcases a steady increase in sunlight, with May and June bringing particularly bright days, while the latter half of the year reveals a significant decrease. As the year progresses into the autumn months, Glasgow's sunshine hours fall sharply, reaching a dim 71 hours by December. This seasonal pattern underlines the city's transformation from sun-drenched summer days to the more subdued and shorter days of winter.

Monthly Sunshine Duration in Glasgow: August Highlighted

The August sunshine duration represents the total number of hours Glasgow experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec68h128h181h316h389h378h390h344h274h204h108h71h
Data source: Glasgow August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Glasgow During August

In Glasgow, the prospects of enjoying sunny weather in August stand at about 26%, a figure that reflects a slight dip compared to the drier months preceding it—specifically, April boasts nearly double the chance at 47%. The trend throughout the year reveals that as we move from the bright spring towards the late summer months, the likelihood of sunshine generally diminishes, fluctuating between the highs of spring and the gloomier ambiance of autumn. Even though August represents a peak of summer, those hoping for vibrant sunny days may need to temper their expectations. Instead, they should embrace the unpredictable charm of Glasgow’s weather, where the sun's playful appearances can add a delightful surprise to any day.

Percentage of Sunny Days in August in Glasgow

The chart illustrates the percentage of sunny days in Glasgow throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Glasgow experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%25%19%47%30%22%30%26%19%17%26%16%
Data source: Glasgow August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Glasgow in August

In August, Glasgow experiences a substantial decline in daylight, with approximately 14 hours of sunlight—a notable decrease from the 17 hours enjoyed during the peak of summer in June. This shift indicates the gradual transition toward autumn, as daylight hours steadily reduce from July’s longer days. As we move forward into September and October, the trend of diminishing light continues, ultimately leading to the shorter days of winter. Despite this reduction, August still offers a generous amount of daylight, making it an ideal time for outdoor activities before the nights draw in.

Average Daylight Hours in Glasgow for August

The chart illustrates the variation in daylight duration in Glasgow throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 42m9h 36m11h 53m14h 13m16h 19m17h 26m16h 50m14h 56m12h 40m10h 21m8h 14m7h 5m
Data source: Glasgow daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Glasgow

In August, Glasgow experiences a gentle breeze, with an average wind speed of 2.7 m/s (6 mph), marking a slight uptick from the calmness of July. As summer winds down, the wind movements become notably less vigorous compared to earlier in the year, with the peak gusts occurring in the colder months of October and November. The pattern suggests a gradual transition, as the city prepares for fall, where the winds pick up, reflecting the changing seasons. With such mild August breezes, residents and visitors can enjoy outdoor activities and picturesque views, all while savoring the last whispers of summer.

Average August Wind Speed in Glasgow

The chart displays monthly wind speed patterns in Glasgow, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.35.54.42.83.13.32.22.7 m/s3.24.24.33.6
Data source: Glasgow August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Glasgow Compares to Other Months

The weather in Glasgow 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 Glasgow and find detailed weather information for every month.

When comparing the weather in August and January, notable differences emerge. August typically enjoys a milder temperature range, with minimums around 6°C (43°F), averages of 15°C (59°F), and highs reaching up to 27°C (80°F). Conversely, January is significantly cooler, with temperatures dropping to a minimum of -7°C (20°F), averaging 5°C (41°F), and maximums peaking at 14°C (57°F). In terms of precipitation, August experiences higher rainfall with 127 mm (5.0 in) over approximately 19 days, compared to January's 84 mm (3.3 in) across about 12 days. Additionally, humidity levels are slightly higher in January at 90%, while August has a relatively lower humidity of 82%. For more detailed information on January weather, you can visit Glasgow weather in January.

In comparing the weather patterns of August and February, it’s clear that each month presents distinct characteristics. August generally features milder temperatures, with a minimum of 6°C (43°F) and an average of 15°C (59°F), peaking at around 27°C (80°F). In contrast, February is much cooler, with temperatures ranging from a minimum of -5°C (23°F) to an average of 5°C (41°F), and a maximum of 15°C (59°F). Both months experience significant precipitation, with August receiving about 127 mm over 19 days, while February sees slightly higher rainfall at 129 mm across 17 days. Humidity levels are also notable, with February exhibiting a higher average at 88% compared to August’s 82%. For more detailed insights, you can refer to Glasgow weather in February.

When comparing the weather in August and March, it's clear that August offers significantly warmer temperatures, with an average of 15°C (59°F) and a maximum of 27°C (80°F), whereas March has a chillier average of 6°C (43°F) and highs reaching only 17°C (63°F). Precipitation is also prevalent in both months, but August sees slightly more rain with 127 mm (5.0 in) over 19 days, compared to March's 106 mm (4.2 in) across 17 days. Humidity levels are quite similar, with August at 82% and March slightly higher at 86%. For more detailed insights into March weather patterns, you can explore Glasgow weather in March.

When comparing the weather in August and April, August generally offers warmer temperatures, with an average of 15°C (59°F) compared to April's average of 8°C (46°F). While August can reach a maximum of 27°C (80°F), April's highs are more modest at 22°C (72°F). However, August experiences significantly more precipitation, accumulating 127 mm (5.0 in) over 19 days, in contrast to April's 44 mm (1.7 in) across just 10 days. Interestingly, humidity levels are slightly lower in August at 82% compared to 85% in April. For a more detailed look at April's weather, you can visit Glasgow 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 6°C (43°F) to a pleasant maximum of 27°C (80°F), with an average of 15°C (59°F). In contrast, May starts cooler, with temperatures dipping down to -1°C (31°F) at night, peaking at a maximum of 26°C (79°F) during the day, and averaging 11°C (52°F). Precipitation is also higher in August, with 127 mm (5.0 in) over 19 days, compared to just 67 mm (2.6 in) over 12 days in May. Humidity levels are similar, with August at 82% and May slightly lower at 80%. For a deeper dive into May's weather specifics, you can visit Glasgow weather in May.

In comparing the weather patterns of August and June, August sees a slightly higher average temperature of 15°C (59°F) compared to June's 14°C (57°F). Both months experience minimum temperatures of 6°C (43°F), but August can reach a maximum of 27°C (80°F), while June peaks at a warmer 29°C (84°F). Precipitation levels are relatively similar, with August receiving 127 mm (5.0 in) over 19 days and June slightly less at 113 mm (4.4 in) across 17 days. Humidity remains high in both months, with August at 82% and June slightly higher at 83%. For a more detailed look at June's weather, you can visit Glasgow weather in June.

In August, the weather in Glasgow remains relatively mild, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 27°C (80°F), averaging around 15°C (59°F). This month experiences slightly higher precipitation, totaling 127 mm (5.0 in) over 19 days, compared to July's 98 mm (3.8 in) over 15 days. Despite the similar temperature averages, July tends to be a bit warmer with a maximum of 28°C (83°F) and maintains the same humidity level of 82%. For a detailed comparison of July's weather, check out Glasgow weather in July.

August typically experiences warmer temperatures than September, with an average of 15°C (59°F) compared to September's average of 13°C (55°F). While both months can reach a maximum of 27°C (80°F), August’s minimum temperature of 6°C (43°F) is significantly higher than September's chilly 1°C (33°F). Additionally, August is wetter, receiving 127 mm (5.0 in) of precipitation over 19 days, whereas September sees less rain at 91 mm (3.6 in) across 15 days. Humidity also rises slightly in September, reaching 88% compared to 82% in August. For more detailed information about the weather in September, visit Glasgow weather in September.

In August, temperatures in Glasgow range from a minimum of 6°C (43°F) to a maximum of 27°C (80°F), with an average of 15°C (59°F). The month sees about 127 mm (5.0 in) of precipitation spread over 19 days, coupled with a humidity level of 82%. In contrast, October experiences cooler temperatures, with a minimum of -3°C (28°F) and a maximum of 20°C (69°F), averaging around 10°C (50°F). Precipitation slightly increases to 130 mm (5.1 in), also spread over 19 days, but humidity rises to 90%. For a more detailed look at the weather conditions in October, you can check Glasgow weather in October.

August and November display contrasting weather patterns in Glasgow. In August, temperatures range from a minimum of 6°C (43°F) to a maximum of 27°C (80°F), with an average of 15°C (59°F). The month experiences significant rainfall, totaling 127 mm (5.0 in) across 19 days, and humidity levels hover around 82%. Conversely, November sees much cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 14°C (58°F), averaging only 7°C (45°F). Although November has slightly less precipitation at 105 mm (4.1 in) over 17 days, the humidity rises to 92%, creating a distinctly damp atmosphere. For more detailed insights on November weather, you can visit Glasgow weather in November.

August and December present quite contrasting weather conditions. In August, temperatures range from a mild 6°C (43°F) at night to a warm 27°C (80°F) during the day, with an average of 15°C (59°F). Despite the warmth, August experiences significant rainfall, totaling 127 mm (5.0 in) over 19 days, and a high humidity of 82%. In stark contrast, December brings much cooler temperatures, with a minimum of -6°C (21°F) and a maximum of 13°C (55°F), averaging only 5°C (41°F). Precipitation remains relatively similar at 117 mm (4.6 in) across 17 days, but humidity rises to 89%, making the air feel quite damp. For more detailed insights on December weather, visit Glasgow weather in December.

Compare Glasgow's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Glasgow

August in Glasgow brings a noticeable shift in weather, marked by warmer temperatures that reach their maximum peak of 27°C (80°F), creating a pleasant contrast to the cooler summer months. However, this warmth comes with increased humidity levels at 82%, often leading to a muggy feel. It’s also one of the wetter months, with 19 rainy days contributing to a total precipitation of 127 mm (5.0 in), reminding us that summer in Glasgow is not without its showers. While the average temperature hovers around a mild 15°C (59°F), the combination of heat and humidity can make it feel significantly warmer. Overall, August serves as a transitional month in Glasgow, blending summer's warmth with the onset of autumnal rains. For a deeper understanding of Glasgow's weather patterns throughout the year, visit Glasgow Climate.