August Weather in City of London, United Kingdom

Last updated: March 17, 2025

August weather in the City of London presents a vibrant tapestry of climatic contrasts. With maximum temperatures reaching 34°C (94°F), the month can feel quite warm, while the average daily temperature hovers around a comfortable 18°C (64°F). However, evenings can be brisk, with temperatures dropping to a refreshing minimum of 8°C (47°F). This month is also characterized by a notable humidity level of 73%, which can add to the sultry feel of warmer days. Travelers should be prepared for occasional rain, as 12 days of precipitation accumulate to a total of 72 mm (2.8 in), showcasing London’s ever-changing weather. Enjoy the diverse experiences this bustling city offers under the sun and through the mist!

August Temperature in City of London

In August, the City of London basks in a warm embrace, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 34°C (94°F). The month showcases a comfortably balmy average of 18°C (64°F), making it a favorite for locals and tourists alike to explore the vibrant streets and parks. As summer peaks, August stands out with noticeably higher temperatures compared to the earlier months, marking a significant rise from June and July. This warmth invites a blending of cultural festivities and outdoor activities, as the city thrives under the sun, offering a delightful experience before the cooler autumn winds set in.

August Weather in City of London: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in City of London, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414346495562656459544643
Data source: Temperature data for City of London generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in City of London

In August, the City of London experiences a moderate uptick in precipitation, with 72 mm (2.8 in) of rainfall spread over 12 days. This marks a slight increase compared to the previous month, reflecting the city’s tendency to embrace summer showers. The month stands out not only for its total rainfall but also aligns with a trend of increasing precipitation observed since June, when the total reached 77 mm (3.0 in). Interestingly, this pattern contrasts with the drier spell that characterized the earlier months of spring, particularly April, which recorded only 32 mm (1.3 in). As summer wanes, August precipitation signals a gradual shift towards the wetter autumn months ahead, hinting at the variability of London’s climate and the balance of sunshine and rain that defines it.

August Precipitation Trends in City of London

The chart displays monthly precipitation patterns in City of London, 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.
JanFebMarAprMayJunJulAugSepOctNovDec545253326377647245814884
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in City of London

In August, the City of London experiences a notable dip in humidity, averaging 73%, which marks the lowest point of the year. This decrease continues the trend seen from July's 76%, reflecting a gradual shift towards more comfortable summer conditions. As the seasons change, humidity levels typically rise again in September, climbing back to 80%, and heralding the approach of autumn. Overall, London's humidity exhibits a clear seasonal pattern, peaking in the winter months with 91% in January and 92% in November and December, providing a stark contrast to the lighter, more breathable air of late summer.

August Average Humidity in City of London

This chart illustrates the average monthly humidity levels in City of London, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in City of London

In August, the UV Index in the City of London rests at a high level of 7, signaling that sun exposure should be managed carefully with a burn time of just 25 minutes. This trend of elevated UV readings continues from the preceding months of June and July, where the index peaked at 8, marking a period of very high exposure. After the bright days of summer, the UV intensity begins to taper off as September approaches, with the index dropping to 6. Overall, the summer months display a clear pattern of increasing UV exposure, requiring residents and visitors to stay vigilant about sun safety. For more detailed insights, visit the City of London UV Index.

Maximum UV Index Levels in City of London for August

The chart shows the monthly maximum UV Index (UVI) for City of London 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: City of London 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 City of London

Amidst the changing seasons, August in the City of London shines with an impressive 372 hours of sunshine, continuing the trend of warmth established in the summer months. After a steady increase from January's modest 95 hours to July's peak of 405 hours, August marks a slight decline as the city transitions toward autumn. Despite this decrease, it remains a vibrant month, outpacing both June and September, which boast 393 and 300 hours respectively. This sunny backdrop makes August an ideal time for outdoor activities and exploring the city's historical charm before the shorter days of fall take hold.

Monthly Sunshine Duration in City of London: August Highlighted

The August sunshine duration represents the total number of hours City of London 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.
JanFebMarAprMayJunJulAugSepOctNovDec95h146h211h319h398h393h405h372h300h240h142h106h
Data source: City of London August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in City of London During August

In the City of London, the likelihood of sunny weather in August reveals a notable trend in the city's climate. While summer typically invites sun-seekers, August presents a modest 25% chance of sun, which mirrors the transitional September but stands below the peak 49% observed in April. This suggests that while Londoners enjoy the warmth of summer, they're just as likely to encounter overcast skies as they are to bask in sunshine during this month. Interestingly, this statistic also aligns with the overall dip in sunny days following the warmth of July, hinting at the city's unpredictable weather patterns as autumn approaches. Thus, August might beckon sun enthusiasts, yet a little caution is advised when planning those outdoor adventures.

Percentage of Sunny Days in August in City of London

The chart illustrates the percentage of sunny days in City of London 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 City of London experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%25%29%49%34%29%39%26%29%25%32%17%
Data source: City of London August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in City of London in August

In August, the City of London enjoys 14 hours of daylight, reflecting a gradual decline from the summer peak of 16 hours in both June and July. This month serves as a transitional period, as the days begin to shorten, leading into the softer light of early autumn. Following the vibrant days of late spring and summer, August still offers ample sunlight for outdoor activities, yet hints at the approaching seasonal shift. As daylight dwindles into September with just 12 hours, the warm, sun-soaked evenings of August become a cherished memory before the cooler months ahead.

Average Daylight Hours in City of London for August

The chart illustrates the variation in daylight duration in City of London throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 55m13h 54m15h 38m16h 33m16h 4m14h 30m12h 35m10h 36m8h 49m7h 53m
Data source: City of London daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in City of London

In August, the wind in the City of London begins to transition into a gentler tempo, with an average speed of 3.8 m/s (8 mph). This is a slight increase from the summer months, where the winds hovered around 3.0 to 3.3 m/s. As the city enjoys the fading warmth of summer, the breezy conditions offer a refreshing respite, though they remain relatively calm compared to the gustier months of January and October, which see averages surpassing 4 m/s. This mildness in August suggests a trend toward a more stable atmosphere, as the city anticipates the shift into autumn with winds gradually picking up in the following months. The varying wind speeds throughout the year reflect London's dynamic climate, with August serving as a serene chapter amidst the more boisterous seasons.

Average August Wind Speed in City of London

The chart displays monthly wind speed patterns in City of London, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.64.43.44.23.03.33.8 m/s3.24.33.74.3
Data source: City of London August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in City of London Compares to Other Months

The weather in City of London 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 City of London and find detailed weather information for every month.

When comparing the weather in August and January, a stark contrast emerges. August boasts a temperature range from a mild 18°C (64°F) to a scorching maximum of 34°C (94°F), accompanied by a moderate level of precipitation at 72 mm (2.8 in) over 12 days. The humidity during this summer month averages 73%, creating a warm and somewhat sticky atmosphere. In sharp contrast, January experiences much colder conditions, with temperatures ranging from a chilly -5°C (24°F) to a maximum of 14°C (58°F). Although precipitation is slightly lower at 54 mm (2.1 in) across 9 days, the humidity is higher, averaging 91%, contributing to a damp and chilly feel. For more detailed information on January weather, visit City of London weather in January.

August and February exhibit contrasting weather patterns, with August being significantly warmer than February. In August, temperatures range from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), with an average of 18°C (64°F). Humidity in August is relatively high at 73%, accompanied by 72 mm (2.8 in) of precipitation over 12 days. In stark contrast, February sees much cooler temperatures, with a minimum of -7°C (21°F) and a maximum of 18°C (65°F), averaging around 6°C (43°F). The month has a slightly lower precipitation total of 52 mm (2.0 in) over 11 days, but the humidity is even higher at 89%. For more detailed information about February's weather, you can visit City of London weather in February.

In comparing the weather of August and March, there is a notable difference in temperatures and humidity levels. August boasts a broader temperature range with minimums around 8°C (47°F) and maximums hitting 34°C (94°F), resulting in a warm average of 18°C (64°F). In contrast, March experiences cooler conditions, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F) and an average of only 8°C (46°F). Additionally, while August has 72 mm of precipitation over 12 days, March sees slightly less at 52 mm across 13 days, but it maintains a higher humidity level at 86% compared to August’s 73%. For more detailed insights on March's weather, you can visit City of London weather in March.

When comparing the weather in August and April, we see notable differences in temperature and humidity. August tends to be much warmer, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), while April experiences cooler conditions, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 26°C (80°F). Additionally, August has higher total precipitation of 72 mm (2.8 in) over approximately 12 days, compared to April's more moderate 32 mm (1.3 in) over 7 days. Humidity levels are also slightly lower in August at 73%, while April's humidity peaks at 85%, making April feel more damp overall. For more details on April's weather, check out City of London weather in April.

In comparing the weather of August and May, August typically presents warmer temperatures, with an average of 18°C (64°F) compared to May's cooler average of 13°C (55°F). The maximum temperatures in August can reach up to 34°C (94°F), while May sees a peak of 25°C (78°F). Despite August being generally warmer, it experiences slightly higher precipitation at 72 mm (2.8 in) over 12 days, in contrast to May's 63 mm (2.5 in) over 10 days. Additionally, August has a humidity level of 73%, which is somewhat lower than May's 82%. For more specific insights on May weather, visit City of London weather in May.

In comparing the weather of August and June, we see a slight increase in temperatures as summer progresses. August features a minimum temperature of 8°C (47°F) and averages around 18°C (64°F), with a maximum of 34°C (94°F), offering warmer days. Conversely, June sees slightly cooler conditions with a minimum of 7°C (45°F) and an average temperature of 17°C (62°F), peaking at 32°C (89°F). Precipitation levels are fairly similar, with August receiving 72 mm (2.8 in) over 12 days, while June has a bit more at 77 mm (3.0 in) across 8 days. Humidity is also higher in June at 81%, compared to August's 73%, making June feel a bit heavier in the air. For more details, you can refer to City of London weather in June.

When comparing the weather of August and July, both months feature similar average temperatures, hovering around 18°C (64°F). However, August experiences slightly lower minimum temperatures of 8°C (47°F) compared to July's 9°C (49°F) and also sees maximum temperatures that are marginally lower, peaking at 34°C (94°F) versus July's 36°C (97°F). Precipitation is a little higher in August at 72 mm (2.8 in) over 12 days, while July records 64 mm (2.5 in) over 11 days. Humidity slightly decreases from July's 76% to August's 73%, making August slightly less muggy than its predecessor. For a detailed look at July's weather, visit City of London weather in July.

August and September show a notable contrast in weather patterns. August tends to be warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), averaging at 18°C (64°F). It also experiences higher precipitation levels at 72 mm (2.8 in) over 12 days, alongside a humidity level of 73%. In contrast, September is cooler, with temperatures dropping to a minimum of 4°C (40°F) and a maximum of 28°C (83°F), averaging at 15°C (60°F). The month sees less rainfall, totaling 45 mm (1.8 in) over 9 days, but humidity slightly increases to 80%. For additional details, check out City of London weather in September.

August and October present distinctly different weather patterns. In August, temperatures range from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), with an average of 18°C (64°F). The month experiences about 72 mm (2.8 in) of precipitation over 12 days, and humidity levels are moderate at 73%. In contrast, October brings cooler conditions with temperatures dropping to a minimum of 1°C (34°F) and averaging 12°C (54°F), peaking at 23°C (73°F). Precipitation increases slightly to 81 mm (3.2 in), also over 12 days, accompanied by heightened humidity at 89%. For more details on October weather, visit City of London weather in October.

August and November showcase a stark contrast in weather patterns. In August, temperatures range from a mild 8°C (47°F) at night to a warm 34°C (94°F) during the day, with an average temperature of 18°C (64°F). This month also sees higher humidity at 73% and more precipitation, totaling 72 mm (2.8 in) over approximately 12 days. In contrast, November experiences much cooler conditions, with temperatures dipping down to -2°C (28°F) at night, peaking at 17°C (62°F), and averaging around 8°C (47°F). The month is also marked by higher humidity at 92%, but precipitation is lower at 48 mm (1.9 in) over about 10 days. For more detailed information, you can check the City of London weather in November.

August and December present contrasting weather conditions. In August, temperatures range significantly from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), with an average temperature of 18°C (64°F). This month experiences an average of 72 mm (2.8 in) of precipitation over 12 days and has a humidity level of 73%. In contrast, December's temperatures are much cooler, with a minimum of -4°C (25°F) and a maximum of 14°C (58°F), resulting in an average temperature of just 6°C (44°F). It also sees a slightly higher rainfall of 84 mm (3.3 in) over 14 days, accompanied by a higher humidity level of 92%. For more details on December weather, you can visit City of London weather in December.

Compare City of London's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in City of London

In August, the City of London experiences a unique blend of warmth and humidity, distinguishing it from the cooler months earlier in the year. With maximum temperatures soaring to a sweltering 34°C (94°F), residents and visitors can expect to bask in the sun, while the average temperature hovers around a comfortable 18°C (64°F). However, the month is not without its share of rain, as August sees 12 days of precipitation totaling 72 mm (2.8 in), reminding us that the British weather remains ever unpredictable. The elevated humidity, averaging 73%, adds a tropical feel to the urban landscape, making it a lively time to explore the city. For a comprehensive overview of what to expect throughout the year, visit City of London Climate.