Last updated: March 17, 2025
In May, Perth, United Kingdom experiences a delightful range of temperatures, with maximums reaching 25°C (77°F) and average lows around 10°C (51°F). However, early risers may encounter cooler mornings, as temperatures can dip as low as -2°C (29°F). The month brings a total precipitation of 74 mm (2.9 in), spread over 13 days, contributing to the region's lush greenery. With an average humidity level of 82%, visitors can expect a fresh and invigorating atmosphere, making it a vibrant time to explore Perth's charming landscapes.
In May, Perth, United Kingdom, bids farewell to the lingering chill of winter, welcoming warmer days that signal the onset of spring. With temperatures ranging from a mild -2°C (29°F) at night to an inviting 25°C (77°F) during the day, the average temperature sits comfortably at 10°C (51°F). This month showcases a notable trend: as the days grow longer and sunnier, the rise in maximum temperatures reflects a rejuvenation in the climate. Compared to the preceding months, where frosty nights were common, May is a pleasant transition that invites outdoor activities and exploration, making it a delightful time to enjoy the blossoming landscape.
May in Perth, United Kingdom, experiences a moderate precipitation total of 74 mm (2.9 in) across approximately 13 rainy days. This amount represents a noticeable increase from April's lighter 40 mm (1.6 in) and hints at a trend where spring showers help nurture the lush greenery of the region. As the month transitions into summer, the rainfall in May serves as a precursor to the wetter months that follow, with June and July typically receiving higher precipitation levels. The balance of rain and milder temperatures during May makes it a pivotal time for the local ecosystem, supporting the vibrant flora just as the days gradually begin to warm.
In May, Perth, United Kingdom, experiences a gradual decline in humidity, with levels sitting at 82%. This marks a notable drop from the preceding months, where humidity hovered around the low to mid-80s. The trend suggests that as spring transitions into summer, the air becomes a touch drier, providing a brief respite before the humidity begins to rise again in the summer months ahead. This pattern of fluctuating humidity is further reflected in the seasonal shifts, with average humidity levels peaking in late autumn and early winter, reaching 92% in November, only to taper back down as warmer weather approaches. Consequently, May serves as a pivotal threshold, balancing between the lingering wetness of spring and the drier days of summer.
In May, Perth experiences a notable shift in its UV Index, climbing to 6 and categorizing exposure as high. This reflects a trend of increasing UV radiation as spring progresses, with burn time decreasing to just 25 minutes. Prior months showed a gradual rise, starting from a low 1 in January and hitting a moderate 5 in April. As summer approaches, residents and visitors should be more vigilant about sun safety, taking precautions to protect their skin during outdoor activities. For detailed UV Index information throughout the year, visit Perth UV Index.
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May basks in an abundance of sunshine in Perth, United Kingdom, with an impressive 373 hours of bright daylight, marking it as one of the sunniest months of the year. This surge in sunlight comes after a steadily increasing trend from the year's earlier months—starting from just 67 hours in January and rising to 310 hours by April. Following May, the sunshine hours begin to slightly decline but remain robust throughout June and July, showcasing a vibrant stretch of longer days. Overall, May not only highlights the peak of this sunny trend but also acts as a delightful prelude to the later summer months, inviting outdoor activities and a sense of warmth to the community.
As spring gives way to early summer, May in Perth, United Kingdom, presents a modest chance of sunny weather, with only a 22% likelihood of sunshine. This represents a dip from the previous month, April, which enjoys a more favorable 45% chance of sun. Notably, May's sun probability aligns closely with the cooler months of June and July, which hover around the 21-24% range. In contrast, the year kicks off with higher sun chances in January (28%) and November (29%), creating a distinct seasonal pattern: peaks in sun are typically found in the colder months, while May's lack of warmth can lead to a cooler, cloudier atmosphere. Thus, while May may not boast the sunniest days, it is a precursor to the upcoming summer, where brighter days become more frequent.
In May, daylight in Perth, United Kingdom, reaches an inviting 16 hours, marking a significant increase from January’s mere 7 hours. This month showcases the transition into late spring, where longer days invite outdoor activities and vibrant social gatherings. The gradual rise in daylight hours starts in February, peaking in June at 17 hours, before gradually tapering off in the following months. As the year progresses from May, the daylight duration subtly decreases, illustrating the cyclical dance of the seasons. This pattern emphasizes not only the beauty of springtime in Perth but also the increasing warmth and opportunities for exploration as the days grow ever longer.
In May, the winds in Perth, United Kingdom present a gentle yet refreshing ambiance, with an average speed of 2.8 m/s (approximately 6 mph). Following a notably peaceful April, where the winds dipped to 2.6 m/s, May sees a slight uptick in breeze strength that sets the stage for the upcoming summer months. This mild increase mirrors the trends of the earlier months, as wind speeds transition from a high of 4.3 m/s in February down to a lower 2.0 m/s in July, reflecting a seasonal variability that is both subtle and invigorating. As the year progresses, the consistent averages in late spring highlight Perth's characteristic mildness, making it a delightful time for outdoor activities while enjoying the gentle caress of the May wind.
The weather in Perth changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May'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.
When comparing the weather in May and January, May offers significantly warmer temperatures, with an average of 10°C (51°F) compared to January's cooler average of 3°C (38°F). While January sees a lower maximum temperature of 13°C (55°F), May enjoys maximums reaching up to 25°C (77°F). Additionally, May experiences slightly more precipitation at 74 mm (2.9 in) over 13 days, while January has 59 mm (2.3 in) over 10 days, but January's higher humidity at 89% compared to May's 82% can make the cold feel more biting. For more specifics on January weather, you can visit Perth weather in January.
The weather in May is generally milder compared to February, as temperatures range from a minimum of -2°C (29°F) to a maximum of 25°C (77°F), with an average of 10°C (51°F). In contrast, February experiences colder temperatures, with lows reaching -14°C (7°F) and a maximum of 14°C (58°F), averaging just 4°C (39°F). Furthermore, February sees more precipitation, totaling 111 mm (4.4 in) over 16 days, compared to May's 74 mm (2.9 in) spread across 13 days. The humidity levels are slightly higher in February at 88%, while May's humidity sits at 82%. For more detailed information, visit Perth weather in February.
When comparing the weather in March and May, it's clear that May offers warmer temperatures, with an average of 10°C (51°F) and a maximum of 25°C (77°F), compared to March's average of 5°C (41°F) and maximum of 17°C (62°F). May also experiences slightly less precipitation, totaling 74 mm (2.9 in) over 13 days, while March has a higher total of 90 mm (3.5 in) across 16 days. However, both months have high humidity levels, with May at 82% and March slightly higher at 86%. For more detailed information, you can check Perth weather in March.
In comparing the weather of April and May, we see a significant increase in temperatures. In April, the minimum temperature dropped to -5°C (23°F), with an average of 7°C (45°F) and a maximum of 21°C (69°F). In contrast, May experiences a milder minimum at -2°C (29°F) and a more comfortable average of 10°C (51°F), reaching a peak of 25°C (77°F). Precipitation also differs notably; April receives 40 mm (1.6 in) over approximately 10 days, while May sees higher rainfall at 74 mm (2.9 in) spread over 13 days. Despite a slight decrease in humidity in May to 82%, it remains relatively high compared to April's 84%. For more insights, you can check out Perth weather in April.
May and June exhibit notable differences in weather, with June generally being warmer and slightly wetter. In May, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 25°C (77°F), accompanied by an average temperature of 10°C (51°F). The month sees 74 mm (2.9 in) of precipitation over 13 days, with humidity levels around 82%. In contrast, June witnesses a rise in temperatures, with a minimum of 3°C (37°F), an average of 13°C (56°F), and a maximum of 28°C (83°F). Precipitation increases to 82 mm (3.2 in) across 15 days, while humidity slightly climbs to 84%. For more detailed insights, check Perth weather in June.
In comparing the weather between May and July, there's a noticeable shift in temperature and humidity. May experiences cooler temperatures, with a minimum of -2°C (29°F) and an average of 10°C (51°F), while July enjoys a slightly warmer minimum of 5°C (42°F) and an average of 15°C (59°F). Both months can reach a maximum of around 25°C (77°F), but July sees increased humidity at 86% compared to May's 82%. Additionally, July has more precipitation, totaling 86 mm (3.4 in) over 15 days, compared to May's 74 mm (2.9 in) over 13 days. For a detailed view of weather conditions, you can check Perth weather in July.
In May, the weather features a broader range of temperatures, with minimums dipping as low as -2°C (29°F) and an average of 10°C (51°F), reaching a maximum of 25°C (77°F). The month typically experiences 74 mm (2.9 in) of precipitation over 13 days, along with a relatively high humidity level of 82%. In contrast, August offers a milder climate, where temperatures range from a minimum of 4°C (40°F) to a consistent average of 14°C (58°F), maintaining the same maximum of 25°C (77°F). However, it is wetter, accumulating 107 mm (4.2 in) of rainfall over 16 days and slightly higher humidity at 86%. For more insights on August weather, visit Perth weather in August.
May and September present relatively mild temperatures, with both months experiencing maximums that can reach up to 25°C (77°F). However, May typically has a lower average temperature of 10°C (51°F) compared to September's slightly warmer average of 12°C (54°F). Precipitation levels are comparable, with May receiving 74 mm (2.9 in) over 13 days and September seeing a slight increase to 77 mm (3.0 in) over 14 days. The humidity is notably higher in September at 90%, compared to May's 82%. For a more detailed look at September's weather, you can check Perth weather in September.
May and October present marked differences in weather conditions. In May, temperatures range from a chilly -2°C (29°F) at night to a pleasant maximum of 25°C (77°F) during the day, with an average temperature of 10°C (51°F). In contrast, October sees cooler temperatures, with a minimum of -2°C (28°F) and a maximum of only 17°C (63°F), averaging at 9°C (48°F). Additionally, October is wetter, receiving 109 mm (4.3 in) of rain over 16 days, compared to May’s 74 mm (2.9 in) over 13 days. Humidity levels also rise in October, reaching 91% compared to May's 82%. For more information on October's weather specifics, visit Perth weather in October.
May and November present contrasting weather conditions. In May, temperatures range from a minimum of -2°C (29°F) to a maximum of 25°C (77°F), with an average of 10°C (51°F), making it a relatively mild month. It experiences 74 mm (2.9 in) of precipitation over about 13 days, contributing to a humidity level of 82%. In comparison, November is cooler, with temperatures dropping to a minimum of -5°C (23°F) and reaching a maximum of 14°C (57°F), while averaging around 6°C (43°F). This month sees a higher precipitation level of 95 mm (3.8 in) across approximately 15 days and an increased humidity of 92%. For more detailed insights, see Perth weather in November.
May and December present contrasting weather conditions. In May, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 25°C (77°F), with an average temperature of 10°C (51°F). Precipitation levels are moderate, with 74 mm (2.9 in) occurring over about 13 days, contributing to a relatively high humidity of 82%. In contrast, December is colder, featuring a minimum temperature of -7°C (19°F) and a maximum of 12°C (54°F), leading to a lower average of 4°C (39°F). The month sees increased precipitation at 94 mm (3.7 in) over 15 days and even higher humidity levels of 88%. For more details, you can check out Perth weather in December.
As May unfolds in Perth, it brings a delightful transition from the cooler months, with temperatures climbing towards a maximum of 25°C (77°F), creating a pleasant atmosphere perfect for outdoor activities. However, compared to other months, you can expect increased rainfall, as May enjoys around 13 days of precipitation, contributing to a notable 74 mm (2.9 in) of total rain. Humidity also peaks at 82%, adding a refreshing, albeit slightly muggy, feel to the air. This blend of warmth and moisture sets May apart, making it a unique time to experience Perth’s lush landscapes in full bloom. For a deeper understanding of how these weather patterns shape the city, explore more at Perth Climate.