July Weather in Perth, United Kingdom

Last updated: March 17, 2025

In July, the charming town of Perth, United Kingdom experiences a delightful blend of mild temperatures and refreshing humidity. With a maximum temperature reaching 25°C (78°F) and an average hovering around 15°C (59°F), visitors can expect pleasantly warm days, although cool evenings may require a light jacket. Rainfall is a frequent companion this month, with 15 days of precipitation accumulating to 86 mm (3.4 in), keeping the lush scenery vibrant and green. Humidity levels at 86% create a refreshing atmosphere, perfect for leisurely strolls along the River Tay or exploring the historic sites. Whether you’re a local or a traveler, July in Perth promises a unique experience marked by the serene beauty of a summer's day in the UK.

July Temperature in Perth

In July, Perth, United Kingdom, typically enjoys mild and manageable temperatures, marking a shift from the chillier winter months. With minimums averaging around 5°C (42°F) and maximums peaking at a pleasant 25°C (78°F), this month strikes a harmonious balance for outdoor activities and leisurely pursuits. The average temperature hovers at 15°C (59°F), providing a comfortable backdrop for locals and visitors alike. Compared to June's warmer stretch, July maintains a steady warmth that foreshadows the onset of summer, indicative of a gradual temperature rise as the year progresses. The trends reflect a gentle ascent from the frosty depths of winter, making July an inviting time for exploration in this charming town.

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

The chart illustrates July temperature patterns in Perth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec383941455056595854484339
Data source: Temperature data for Perth 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.

July Precipitation in Perth

In July, Perth, United Kingdom, experiences a notable level of rainfall, with precipitation amounting to 86 mm (3.4 in) over roughly 15 days. This volume is slightly higher than the drier months of April and May, yet it falls short compared to the heavy rains of February and August. The consistent precipitation throughout July highlights a trend of wet summers, setting the stage for lush greenery in the region. As the UK transitions into late summer, the precipitation patterns suggest an enduring dampness before the autumn months see an uptick again, particularly in October. This rhythm of rainfall not only shapes the landscape but also affects daily life, with the residents of Perth adapting to the wet summer days, marked by a blend of sun and showers.

July Precipitation Trends in Perth

The chart displays monthly precipitation patterns in Perth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec591119040748286107771099594
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Perth

In July, Perth experiences a notable humidity level of 86%, slightly above the preceding month's 84%. This peak marks a continuation of the relatively high humidity trend seen throughout the year, where January leads with the highest at 89% and the summer months consistently hover in the mid-80s to low-90s range. As the year progresses, humidity gradually climbs, peaking in the late months, making July part of a transitional phase before the more pronounced increases in August and September. This persistent moisture in the air can lend a distinct feel to the summer atmosphere in Perth, adding to its lush landscapes and vibrant ecosystems.

July Average Humidity in Perth

This chart illustrates the average monthly humidity levels in Perth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%82%84%86%86%90%91%92%89%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Perth

In July, Perth, United Kingdom experiences a high UV Index reading of 7, which translates to a burn time of 25 minutes for unprotected skin. This reflects a slight decline from the previous month, June, which had a very high UV Index of 8, requiring even more vigilance when it comes to sun exposure. As we move through the summer months, the UV Index tends to peak before gradually decreasing. The trend shows that while the UV levels in Perth can be quite intense during the peak of summer, they remain manageable with proper precautions. For more detailed insights into UV exposure levels throughout the year, visit Perth UV Index.

Maximum UV Index Levels in Perth for July

The chart shows the monthly maximum UV Index (UVI) for Perth 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568765311
Data source: Perth 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 Perth

July in Perth, United Kingdom, shines brightly with 371 hours of sunshine, marking it as one of the sunniest months of the year. This month continues the positive trend established in the warmer months, building on a steady increase from January's mere 67 hours. As spring transitions into summer, sunshine peaks in July, bringing warmth and vitality to the region after the gentle rise from February’s 112 hours and March’s 174 hours. Following the sunny atmosphere of July, the sunshine hours gradually taper off into August, showcasing a dip to 329 hours, yet still reflecting a vibrant summer ambiance. Overall, the data illustrates a clear seasonal progression where summer months illuminate Perth, offering residents and visitors alike a delightful contrast to the chillier, darker days of autumn and winter.

Monthly Sunshine Duration in Perth: July Highlighted

The July sunshine duration represents the total number of hours Perth 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.
JanFebMarAprMayJunJulAugSepOctNovDec67h112h174h310h373h358h371h329h264h187h92h64h
Data source: Perth July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Perth During July

In Perth, United Kingdom, the chances of sunny weather in July hover around 24%, a slight dip from the preceding months of April, which boasts a more favorable 45%. This moderate likelihood of sunshine aligns closely with the patterns observed throughout late spring and early summer, where the sunniest months tend to be somewhat unpredictable. Following June's relatively low 21%, July offers a glimmer of hope as it transitions towards late summer, just edging ahead of August's 23%. Notably, throughout the year, January presents the highest likelihood of sunshine at 28%, with the sunniest season generally peaking in early summer, before the trend shifts downward into the autumn months. Overall, while July may not guarantee a sun-soaked escape, it holds a fair chance for those hoping to enjoy some rays in the often overcast British climate.

Percentage of Sunny Days in July in Perth

The chart illustrates the percentage of sunny days in Perth 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 Perth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%23%20%45%22%21%24%23%18%18%29%19%
Data source: Perth July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Perth in July

In July, Perth, United Kingdom experiences a notable daylight duration of 16 hours, marking a slight decline from the peak of 17 hours enjoyed in June. This month continues to embrace the lingering brightness of summer, providing residents and visitors alike with ample opportunities to bask in the sun. As daylight gradually tapers off towards the end of summer, the trend reveals a steady decrease in hours of light as the year progresses, transitioning into the shorter days of autumn and winter. The increase in daylight from January’s mere 7 hours to the summer’s peak exemplifies the remarkable shift Perth undergoes throughout the months, showcasing the region’s vibrant seasonal changes.

Average Daylight Hours in Perth for July

The chart illustrates the variation in daylight duration in Perth throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 34m9h 32m11h 53m14h 17m16h 27m17h 38m16h 59m15h 1m12h 41m10h 18m8h 7m6h 54m
Data source: Perth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Perth

In July, the winds in Perth, United Kingdom, shift to a gentler pace, with an average speed of just 2.0 m/s (4 mph), marking it as one of the calmest months of the year. This is a noticeable drop from the breezier early summer months, such as June, where winds were slightly stronger at 3.1 m/s (7 mph). Following a consistent trend, July's winds are among the lowest observed, reminiscent of the quieter conditions seen in April and May. As summer progresses into August, a slight uptick is expected, but July's lighter winds paint a serene picture ideal for leisurely outdoor activities. This pattern highlights a seasonal rhythm where calm breezes characterize mid-summer, making Perth a peaceful retreat during this time.

Average July Wind Speed in Perth

The chart displays monthly wind speed patterns in Perth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.74.33.72.62.83.12.0 m/s2.22.63.43.82.9
Data source: Perth July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Perth Compares to Other Months

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

July and January present starkly contrasting weather conditions. In July, temperatures typically range from a minimum of 5°C (42°F) to a maximum of 25°C (78°F), with an average of 15°C (59°F). The month is characterized by high humidity at 86% and receives about 86 mm (3.4 in) of precipitation spread over approximately 15 days. In contrast, January experiences much colder weather, with minimum temperatures dropping to -6°C (21°F) and maximums only reaching 13°C (55°F), leading to an average of just 3°C (38°F). This month also sees lower precipitation levels at 59 mm (2.3 in) over about 10 days, albeit with slightly higher humidity at 89%. For more details on January weather, visit Perth weather in January.

July and February present stark contrasts in weather conditions. In July, temperatures range from a mild 5°C (42°F) at night, averaging 15°C (59°F) during the day, and reaching a maximum of 25°C (78°F). The month sees substantial rainfall as well, with 86 mm (3.4 in) of precipitation over about 15 days, accompanied by a high humidity level of 86%. In contrast, February experiences chillier temperatures, with nighttime lows hitting a frigid -14°C (7°F) and daytime averages around 4°C (39°F), peaking at 14°C (58°F). This month also has slightly more precipitation, totaling 111 mm (4.4 in) over 16 days, and maintains a high humidity of 88%. For more detailed information, you can check out Perth weather in February.

In comparing the weather of July and March, we can see notable differences in temperature and precipitation patterns. July enjoys milder temperatures, with a minimum of 5°C (42°F) and an average of 15°C (59°F), peaking at a comfortable 25°C (78°F). On the other hand, March is cooler overall, starting with a minimum temperature of -5°C (23°F) and averaging only 5°C (41°F), with a maximum of 17°C (62°F). Despite the warmer July weather, both months experience similar precipitation levels, with July seeing 86 mm (3.4 in) of rain over 15 days and March slightly higher at 90 mm (3.5 in) over 16 days. Interestingly, humidity remains consistent at 86% for both months. For a more detailed look into March weather specifically, you can refer to Perth weather in March.

When comparing the weather in July and April, it's clear that July is generally warmer and wetter. July boasts a temperature range from a minimum of 5°C (42°F) to a maximum of 25°C (78°F), with an average of 15°C (59°F). In contrast, April typically experiences cooler temperatures, ranging from a low of -5°C (23°F) to a high of 21°C (69°F), with an average temperature of 7°C (45°F). Precipitation is also higher in July, with 86 mm (3.4 in) of rain spread over 15 days, compared to April's 40 mm (1.6 in) over 10 days. Interestingly, the humidity is quite similar in both months, at 86% for July and 84% for April. For more detailed insights, visit Perth weather in April.

In comparing the weather of July and May, we see noticeable differences in both temperature and precipitation. July generally offers warmer conditions, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 25°C (78°F), contrasted with May's cooler averages, which span from -2°C (29°F) to 25°C (77°F). While July experiences a higher average humidity of 86% and more rainfall at 86 mm (3.4 in) over 15 days, May has slightly less precipitation at 74 mm (2.9 in) over 13 days, with a humidity level of 82%. For a detailed look at weather patterns, you can check Perth weather in May.

In comparing the weather of July and June, we see a slight increase in temperatures during July, with a minimum of 5°C (42°F) and an average of 15°C (59°F), whereas June has a lower minimum of 3°C (37°F) and an average of 13°C (56°F). Although July has a maximum temperature of 25°C (78°F) compared to June's 28°C (83°F), it experiences a similar level of precipitation, with 86 mm (3.4 in) over 15 days in July, just slightly higher than June's 82 mm (3.2 in) for the same number of days. Humidity levels also show a marginal increase in July at 86%, compared to 84% in June. For more details on weather patterns, you can check Perth weather in June.

In comparing the weather between July and August, we can see that both months exhibit similar temperature ranges, with July having a slightly warmer average temperature of 15°C (59°F) compared to August's 14°C (58°F). Both months reach a maximum of 25°C (77°F), but July features a higher minimum temperature of 5°C (42°F) versus August’s 4°C (40°F). August tends to be a bit wetter, with precipitation totaling 107 mm (4.2 in) over 16 days, compared to July's 86 mm (3.4 in) over 15 days. Interestingly, the humidity remains consistent at 86% in both months, creating a muggy atmosphere. For more details, you can check out Perth weather in August.

July and September exhibit some notable differences in weather patterns despite sharing similar maximum temperatures. July boasts a warmer average temperature of 15°C (59°F), comfortable humidity levels at 86%, and higher rainfall with 86 mm (3.4 in) over 15 days. In contrast, September sees a drop in the average temperature to 12°C (54°F) and introduces cooler minimum temperatures, dipping to -1°C (30°F). Although September has slightly less precipitation at 77 mm (3.0 in) over 14 days, humidity remains high at 90%. For a detailed look at September weather, visit Perth weather in September.

In July, the weather features a more moderate range of temperatures, with minimums around 5°C (42°F) and maximums reaching 25°C (78°F), creating a pleasant summer atmosphere. However, this month also experiences a relatively high humidity level of 86% along with 86 mm (3.4 in) of precipitation over approximately 15 days. In contrast, October brings cooler temperatures, with lows dipping to -2°C (28°F) and an average of just 9°C (48°F), while highs peak at 17°C (63°F). The month sees increased precipitation at 109 mm (4.3 in) spread over about 16 days and a slight increase in humidity to 91%. For a closer look at the weather conditions specific to this month, check out Perth weather in October.

In July, the weather is generally milder, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 25°C (78°F). The month typically sees about 86 mm (3.4 in) of precipitation over 15 days, with a humidity level of 86%. In contrast, November presents a cooler climate, with temperatures dipping to a minimum of -5°C (23°F) and peaking at 14°C (57°F). Precipitation increases slightly to 95 mm (3.8 in), also across 15 days, and humidity rises to 92%. For more detailed insights into November weather, you can refer to Perth weather in November.

In July, temperatures range from a minimum of 5°C (42°F) to a maximum of 25°C (78°F), with an average of 15°C (59°F) and relatively high humidity at 86%. The month sees approximately 86 mm (3.4 in) of precipitation over about 15 days. In contrast, December brings much colder temperatures, with a minimum of -7°C (19°F), an average of 4°C (39°F), and a maximum of 12°C (54°F). Despite the colder conditions, December has similar precipitation levels of 94 mm (3.7 in) spread across roughly the same number of rainy days. Both months experience high humidity, with December slightly higher at 88%. For more details on winter weather, check out Perth weather in December.

Compare Perth's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Perth

July in Perth stands out with its cooler temperatures and increased humidity, offering a refreshing contrast to the warmer months. While the average daytime highs reach a comfortable 25°C, the nights can chill down to a brisk 5°C, making it essential to pack layers. This month also sees a notable rise in precipitation, with rain gracing around half the days, contributing to the lush landscape. The 86% humidity can make the air feel heavier than in drier seasons, adding to the unique character of July weather. For a more detailed understanding of what to expect throughout the year, check out the Perth Climate.