July Weather in Hounslow, United Kingdom

Last updated: March 17, 2025

July in Hounslow, United Kingdom, showcases a dynamic weather pattern marked by a maximum temperature soaring to 36°C (96°F), while the average rests at a comfortable 18°C (65°F). The month experiences a minimum temperature of 9°C (49°F), providing a wide temperature range for residents and visitors. Despite the warmth, precipitation is notable, with around 64 mm (2.5 in) of rain spread across 11 days, contributing to a humidity level of 71%. This blend of warmth and moisture creates a humid, vibrant atmosphere, typical of a busy British summer.

July Temperature in Hounslow

July in Hounslow, United Kingdom, is typically the warmest month of the year, showcasing a striking increase in temperatures. With minimums averaging 9°C (49°F) and maximums peaking at an impressive 36°C (96°F), it presents a delightful contrast to the chill of winter months. The average temperature settles at a comfortable 18°C (65°F), drawing both locals and visitors outdoors to enjoy the balmy weather. This month stands out not only for its heat but also for the transition it signifies—ushering in sunny days that are perfect for exploring parks, gardens, and the vibrant local culture. As the hottest point in the calendar, July paints Hounslow in shades of warmth and vitality, making it a cherished time for enjoying the great outdoors.

July Weather in Hounslow: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Hounslow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345495562656459534643
Data source: Temperature data for Hounslow 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.

July Precipitation in Hounslow

In July, Hounslow experiences a pleasantly mild but relatively wet month, receiving 64 mm (2.5 in) of precipitation over approximately 11 days. This rainfall continues a trend observed since the onset of summer, with June's total slightly higher at 77 mm (3.0 in), indicating a typically damp start to the season. Compared to previous months, July's precipitation serves as a balanced midpoint—drier than May but still significant enough to maintain lush greenery, a hallmark of the British summer. As the summer progresses into August, the rainfall slightly increases to 70 mm (2.7 in), suggesting that while July offers a respite from the heavier showers of early summer, the wet weather trend shows no signs of abating just yet.

July Precipitation Trends in Hounslow

The chart displays monthly precipitation patterns in Hounslow, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec545354336277647045845284
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Hounslow

In July, Hounslow experiences a notable drop in humidity, reaching 71%, which is the lowest level of the year. This decrease marks a shift from the earlier months, where humidity levels remain consistently high, peaking at 91% in January and gradually decreasing to 80% in June. As summer unfolds, July offers a brief respite from the sticky conditions of spring, allowing residents to enjoy warmer days with a touch more comfort. However, this relief is short-lived, as humidity begins to climb again in August to 76%, setting the stage for the wetter months ahead. The trend illustrates a rhythm of air moisture that peaks during the colder months and fluctuates, making July a standout for clearer skies and fresher air in Hounslow.

July Average Humidity in Hounslow

This chart illustrates the average monthly humidity levels in Hounslow, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Hounslow

In July, Hounslow experiences a UV Index of 8, categorizing it as very high and signaling the need for vigilant sun protection during outdoor activities. This reflects a continuation of the intense UV levels seen in June, which also recorded a UV Index of 8. Both months showcase a notable shift from the moderate levels of earlier spring months like March and April, where the burn time was significantly longer at 30 minutes. Now, with July’s burn time dropping to just 15 minutes, it’s clear that precautions are essential; sunscreen and protective clothing are recommended to avoid skin damage. As summer peaks, staying informed about the UV index is crucial for safe sun exposure. For more detailed insights, visit Hounslow UV Index.

Maximum UV Index Levels in Hounslow for July

The chart shows the monthly maximum UV Index (UVI) for Hounslow in July, 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: Hounslow July 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.

July Sunshine in Hounslow

In July, Hounslow shines brightly with an impressive 404 hours of sunshine, marking it as one of the sunniest months of the year. This peak in sunlight follows a steady upward trend since January, where the sun only graced the area for a mere 98 hours. The transition from the depths of winter to the warm embrace of summer is evident, as each month showcases a gradual increase, culminating in July's vibrant days. After July, August sees a slight decline to 368 hours, but still retains a generous share of sunlight, demonstrating the region's inviting summer atmosphere. Overall, the data reflects a distinct seasonal pattern, where Hounslow transforms from a dim winter landscape to a lively summer haven, perfect for outdoor activities and soaking up the sun.

Monthly Sunshine Duration in Hounslow: July Highlighted

The July sunshine duration represents the total number of hours Hounslow experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec98h148h210h319h398h389h404h368h300h241h144h109h
Data source: Hounslow July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hounslow During July

In July, Hounslow enjoys a 38% chance of sunny weather, marking a noteworthy increase from the earlier months. This uptick follows the promising 49% in April, suggesting that summer is on the horizon. While the likelihood of sun drops in August to 25%, July stands out as a peak time for sunny days, outshining the previous months of June and May with 28% and 33% respectively. Overall, July represents a transitional moment, as the region's skies begin to brighten, offering a taste of summer before the sun's prevalence ebbs again in August.

Percentage of Sunny Days in July in Hounslow

The chart illustrates the percentage of sunny days in Hounslow throughout the year, with July 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 Hounslow experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%25%29%49%33%28%38%25%29%25%32%17%
Data source: Hounslow July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hounslow in July

In Hounslow, United Kingdom, the July daylight duration remains at a vibrant 16 hours, matching the longest day of June. This enchanting peak of summer light illustrates a delightful upward trend from the bleakness of winter, where January sees just 8 hours of daylight. Following July, daylight begins to wane gradually, with August still enjoying a generous 14 hours, but September witnesses a gentle decline to 12 hours. This rhythm of increasing daylight in spring and summer, followed by a gradual retreat into autumn and winter, highlights the dynamic interplay of seasons that shapes our experiences in this charming locale.

Average Daylight Hours in Hounslow for July

The chart illustrates the variation in daylight duration in Hounslow throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 55m13h 54m15h 38m16h 32m16h 3m14h 30m12h 35m10h 36m8h 50m7h 53m
Data source: Hounslow daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Hounslow

In Hounslow, July ushers in a gentle breeze with an average wind speed of 3.3 m/s (7 mph), marking a slight uptick from the calmest month of June. This month continues a trend of variability seen throughout the year, where wind speeds fluctuate between lively gusts in the colder months and more serene conditions as summer unfolds. While the wind speeds in July are slightly higher than those in June, they remain lower compared to the spring months, indicating a seasonal shift towards warmer, quieter afternoons. As we move from the peak summer days into late summer, with August forecasted to see an increase to 3.8 m/s (8 mph), it’s clear the winds in Hounslow play a subtle yet significant role in the region’s charm, weaving through the landscapes and enhancing the quintessential English summer experience.

Average July Wind Speed in Hounslow

The chart displays monthly wind speed patterns in Hounslow, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.24.74.43.54.23.13.3 m/s3.83.34.43.84.4
Data source: Hounslow July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Hounslow Compares to Other Months

The weather in Hounslow changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Hounslow and find detailed weather information for every month.

In Hounslow, July brings significantly warmer temperatures, with an average of 18°C (65°F) and highs soaring up to 36°C (96°F), while January remains much cooler, averaging just 5°C (41°F) and peaking at 14°C (58°F). July features a higher humidity level at 71%, compared to January's more humid atmosphere at 91%. Although July sees slightly more rainfall, with 64 mm (2.5 in) over approximately 11 days, January's precipitation is not far behind at 54 mm (2.1 in) across 10 days. For a detailed look at January weather patterns, check out Hounslow weather in January.

July and February present a striking contrast in weather patterns. July boasts significantly warmer temperatures, with a minimum of 9°C (49°F) and a maximum soaring to 36°C (96°F). In contrast, February experiences much chillier conditions, with temperatures ranging from a low of -5°C (23°F) to a high of 18°C (65°F). While July has higher average temperatures at 18°C (65°F) and more moderate humidity at 71%, February's average is a brisk 6°C (43°F) and a notably higher humidity of 89%. Additionally, both months see around 11 days of precipitation, with July receiving 64 mm (2.5 in) and February 53 mm (2.1 in). For those interested in more specific details, you can explore Hounslow weather in February.

July and March present quite contrasting weather conditions. In July, temperatures soar, with a minimum of 9°C (49°F) and a maximum reaching 36°C (96°F), resulting in an average of 18°C (65°F) and a humidity level of 71%. The month experiences about 64 mm (2.5 in) of precipitation spread over 11 days. Meanwhile, March showcases a more temperate climate, with minimum temperatures dipping to -5°C (23°F) and maximums peaking at 22°C (71°F), leading to an average of 7°C (46°F). This month has a slightly lower precipitation total of 54 mm (2.1 in), although it occurs over 13 days and features higher humidity at 86%. For a closer look at March weather specifics, you can refer to Hounslow weather in March.

When comparing the weather in July and April, it's clear that July tends to be much warmer and drier. July boasts temperatures ranging from a chilly 9°C (49°F) at night to a scorching 36°C (96°F) during the day, with an average temperature of 18°C (65°F). In contrast, April's temperatures are milder, with a minimum of -2°C (29°F), an average of 10°C (49°F), and a maximum of 26°C (80°F). Additionally, July experiences more precipitation, with rain falling on 11 days and totaling 64 mm (2.5 in), compared to April's 33 mm (1.3 in) over 8 days. Interestingly, while July has a lower humidity level of 71%, April’s higher humidity of 85% contributes to its cool and crisp feel. For more detailed information about April weather, you can check out Hounslow weather in April.

When comparing the weather in July and May, it is clear that July experiences significantly warmer temperatures, with minimums of 9°C (49°F) and maximums soaring up to 36°C (96°F), contrasting with May's milder range of 1°C (35°F) to 25°C (78°F). Although both months have comparable precipitation levels, averaging around 64 mm (2.5 in), the humidity in May is slightly higher at 79%, compared to July’s 71%. This results in a more comfortable feel in July despite its higher temperatures. For a detailed look at the weather patterns in May, you can visit Hounslow weather in May.

In comparing the weather between June and July, we see a notable increase in temperatures during July. The minimum temperature rises from 7°C (45°F) in June to 9°C (49°F), while the average temperature also increases to 18°C (65°F) compared to June's average of 16°C (62°F). July experiences a maximum temperature of 36°C (96°F), significantly higher than June's peak of 31°C (89°F). However, July also has slightly less precipitation, totaling 64 mm (2.5 in) over 11 days, compared to June's 77 mm (3.0 in) over 9 days. Humidity is also lower in July at 71%, compared to 80% in June, making the latter month feel more humid. For more details, you can refer to Hounslow weather in June.

In comparing the weather between July and August, both months exhibit similar average temperatures, with July having a slightly higher maximum of 36°C (96°F) compared to August's 34°C (93°F). July also experiences a wider temperature range, with minimums reaching down to 9°C (49°F) versus August's lower minimum of 8°C (47°F). Precipitation levels increase in August, with 70 mm (2.7 in) recorded over 12 days, slightly surpassing July's 64 mm (2.5 in) over 11 days. Additionally, August tends to be more humid, with levels reaching 76% compared to July's 71%. For more details on the weather in August, you can visit Hounslow weather in August.

In comparing the weather between July and September, July tends to be significantly warmer, with average temperatures reaching 18°C (65°F) and daytime highs soaring up to 36°C (96°F). In contrast, September experiences cooler temperatures, with an average of 15°C (59°F) and a maximum of only 28°C (83°F). While both months see a similar number of rainy days, July has slightly higher precipitation at 64 mm (2.5 in) compared to September's 45 mm (1.8 in). Additionally, September has a higher humidity level at 82%, compared to July's 71%. For more insights into September weather, you can explore Hounslow weather in September.

In July, the weather tends to be warmer with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (96°F), offering an average of 18°C (65°F). The month sees about 64 mm (2.5 in) of precipitation distributed over 11 days, accompanied by a humidity level of 71%. In contrast, October brings much cooler temperatures, with a minimum of 1°C (34°F), an average of 12°C (54°F), and a maximum of 22°C (73°F). Precipitation increases to 84 mm (3.3 in), occurring over 12 days, and humidity rises to 90%. For a more detailed look at October weather, visit Hounslow weather in October.

July and November present a stark contrast in weather. July features a wide temperature range, with minimums around 9°C (49°F) and maximums soaring to 36°C (96°F), making it the warmest month of the year. In contrast, November's temperatures are much cooler, with minimums dipping to -2°C (29°F) and maximums reaching only 16°C (62°F). While July experiences a moderate amount of precipitation at 64 mm (2.5 in) over 11 days, November sees slightly less rain at 52 mm (2.0 in) over the same number of days. Additionally, humidity levels are higher in November at 92%, compared to July's 71%, signaling a noticeable shift toward more damp and chilly conditions. For more detailed insights, you can visit Hounslow weather in November.

In July, the weather tends to be much warmer, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (96°F), and an average of 18°C (65°F). The month sees about 64 mm (2.5 in) of precipitation over 11 days, along with a moderate humidity level of 71%. Conversely, December experiences considerably cooler temperatures, with a minimum of -4°C (24°F) and a maximum of 14°C (58°F), averaging only 6°C (44°F). Precipitation in December increases to 84 mm (3.3 in) over 13 days, accompanied by higher humidity levels at 92%. For a closer look at the weather specifics, you can explore Hounslow weather in December.

Compare Hounslow's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Hounslow

As July unfolds in Hounslow, the weather showcases a striking departure from the rest of the year, characterized by warmer temperatures and increased humidity. This month often reaches its peak warmth, making the average of 18°C feel pleasantly balmy during the daylight hours, with occasional spikes hitting a sizzling 36°C. However, the summer skies don't always stay clear; with around 11 days of rain contributing to a total precipitation of 64 mm, you'll want to be prepared for the occasional downpour. This unique blend of warmth and humidity creates a vibrant atmosphere, ideal for enjoying the lush greenery of the area. To explore more about the annual weather patterns, check out Hounslow Climate.