Last updated: March 17, 2025
In Harrow on the Hill, United Kingdom, May showcases a vibrant transition into warmer weather, with temperatures reaching a pleasant maximum of 25°C (78°F) and an average of 13°C (55°F). Despite the mild conditions, the month experiences a minimum chill of 1°C (35°F), reminding us of the lingering coolness of spring. Rainfall is a common occurrence, with 62 mm (2.5 in) of precipitation spread over 11 days, contributing to the lush greenery of the region. The humidity levels hover around a comfortable 79%, enhancing the fresh, invigorating feel of the landscape. Overall, May in Harrow on the Hill offers a delightful blend of warmth and refreshing rain, perfect for outdoor explorations.
As spring takes its final bow, May in Harrow on the Hill ushers in warmer temperatures that mark a significant transition from the lingering chills of winter. With average temperatures sitting at a comfortable 13°C (55°F) and highs reaching a pleasant 25°C (78°F), this month is a breath of fresh air after the cooler April. The minimum temperature of 1°C (35°F) offers just a hint of the winter chill, yet the overall warmth encourages outdoor activities and blooming landscapes. This shift not only invites residents to enjoy longer days under the sun but also signals the approach of summer, as temperatures steadily climb upward in the following months. The delightful contrast between early and late May showcases nature's beauty and sets the stage for the vibrant summer ahead.
In May, Harrow on the Hill experiences a noticeable uptick in precipitation, with 62 mm (2.5 in) of rain falling over 11 days. This marks a significant increase from April's 33 mm (1.3 in), reflecting a shift towards more humid conditions as spring progresses. The rain showers not only rejuvenate the vibrant greenery but also set the stage for the wetter months ahead, as June typically brings even heavier rainfall averaging 77 mm (3.0 in). The consistent patterns of May's precipitation suggest a transition into the height of the rainy season, emphasizing the importance of this month in the local climate calendar.
As spring transitions into summer, May in Harrow on the Hill sees a noticeable dip in humidity, averaging around 79%. This marks a shift from the wetter months of winter and early spring, where humidity levels hovered above 85%. Although May remains relatively humid, it paves the way for warmer months ahead, with June slightly increasing to 80% and July showing a more significant drop to 71%. This seasonal change signifies a shift towards drier conditions, making May a refreshing month before the summer heat fully sets in. Overall, the trend suggests that while early spring may feel damp, May offers a brief respite, hinting at the sunnier days to come.
As May rolls into Harrow on the Hill, the UV Index climbs to 7, indicating a high exposure category and a noticeably shortened burn time of just 25 minutes. This significant increase from the moderate levels of April highlights the transition into late spring, where sun exposure becomes increasingly critical. With the UV Index peaking from June onward, it’s essential to stay vigilant and protect your skin as outdoor activities become more appealing. Staying informed about these trends not only enhances your enjoyment of the sunny weather but also helps you maintain healthy sun safety practices. For more insights, visit the Harrow on the Hill UV Index.
UV Risk Categories
May brings a delightful surge of sunshine to Harrow on the Hill, with an impressive 398 hours of sunlight, marking a remarkable increase from the previous months. This month not only surpasses April's 319 hours but also showcases the transition into warmer days, as daylight becomes more abundant leading into summer. As the year progresses, sunshine peaks in July with 404 hours, while May serves as a pivotal month, highlighting the gradual ascendancy of vibrant, sunlit days that invite residents and visitors alike to bask in the beauty of this charming locale. The consistent rise through spring and into summer underscores May as a time of renewal and warmth, setting the stage for the sun-drenched months that follow.
As spring unfolds in Harrow on the Hill, the likelihood of sunny weather reaches a peak in April at 49%, offering a delightful transition from the winter gloom. However, as May approaches, the chance of sunshine slightly dips to 33%. This decrease can be attributed to the unpredictability of early summer weather, where spring showers often linger. Despite this decline, the likelihood of sunny days remains higher than in the winter months, marking May as a promising yet variable month for sun seekers. As the summer progresses, the chances fluctuate again, indicating that while May might not guarantee endless sunshine, it still holds the potential for bright, pleasant days amidst the springtime freshness.
As spring transitions into summer, Harrow on the Hill experiences a notable increase in daylight hours, peaking in May with a generous 15 hours of sunlight. This upward trend, beginning with 8 hours in January and steadily climbing throughout the months, underscores the growing vitality of the season. By April, residents bask in 13 hours of daylight, which blossoms into the lush brightness of May. Following this vibrant peak, daylight begins to taper slightly, but even in August, there remains a robust 14 hours to enjoy. This rhythm of longer days not only invigorates the community but also heralds the warmth and beauty of the British summer, making each moment under the sun a cherished experience.
In May, Harrow on the Hill enjoys a gentle breeze, with an average wind speed of 4.2 m/s (9 mph), mirroring the conditions of January and March. This consistent wind speed, following a notable decline to 3.5 m/s (8 mph) in April, suggests a gradual return to stronger airflow as spring transitions into summer. However, this month doesn’t quite reach the peak winds often felt in the late autumn months, like October, which averages 4.4 m/s (10 mph). As the weather warms and the landscape comes to life, the May winds invite a refreshing atmosphere, providing the perfect backdrop for outdoor activities while hinting at the more tranquil breezes that will follow in June and July.
The weather in Harrow on the Hill 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 Harrow on the Hill and find detailed weather information for every month.
When comparing the weather in May and January, notable differences emerge. May typically experiences much milder temperatures, with minimums around 1°C (35°F), average highs of 13°C (55°F), and maximums reaching up to 25°C (78°F). The month sees an average of 62 mm (2.5 in) of precipitation over approximately 11 days, accompanied by a humidity level of 79%. In contrast, January is considerably colder, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), and an average of 5°C (41°F). The precipitation during January is slightly lower at 54 mm (2.1 in), spread over 10 days, and the humidity is higher at 91%. For more detailed weather insights, you can check out Harrow on the Hill weather in January.
The weather in May and February shows notable differences in temperature and overall climatic conditions. In May, temperatures range from a minimum of 1°C (35°F) to a maximum of 25°C (78°F), providing a mild average of 13°C (55°F), while February presents cooler conditions with temperatures varying from -5°C (23°F) to 18°C (65°F) and an average of just 6°C (43°F). Precipitation levels are similar, with May receiving 62 mm (2.5 in) across 11 days and February slightly lower at 53 mm (2.1 in) over the same number of days; however, February is characterized by higher humidity at 89% compared to May’s 79%. For more details on February weather, visit Harrow on the Hill weather in February.
In comparing the weather in March and May, March typically experiences colder temperatures, with an average of 7°C (46°F) and minimums dipping as low as -5°C (23°F). In contrast, May offers a significantly warmer climate, with averages around 13°C (55°F) and maximum temperatures reaching 25°C (78°F). Although both months bring a fair amount of precipitation, March has slightly less at 54 mm (2.1 in) over 13 days compared to May's 62 mm (2.5 in) over 11 days. Humidity levels are also higher in March at 86%, while May sees a more comfortable 79%. For more details on March weather specifically, visit Harrow on the Hill weather in March.
In comparing the weather of May and April, May generally offers milder temperatures, with a minimum of 1°C (35°F) and an average of 13°C (55°F), compared to April's chilling minimum of -2°C (29°F) and average of 10°C (49°F). Interestingly, both months feature similar maximum temperatures, with April peaking at 26°C (80°F) and May reaching 25°C (78°F). However, May experiences more precipitation, totaling 62 mm (2.5 in) over 11 days, while April has less rainfall at 33 mm (1.3 in) over 8 days. The humidity in both months is relatively high, with April slightly higher at 85% compared to May's 79%. For more detailed April weather information, you can visit Harrow on the Hill weather in April.
In comparing the weather between May and June, we observe a notable increase in temperatures. May experiences a minimum of 1°C, averaging around 13°C, with highs reaching 25°C. In contrast, June sees a minimum of 7°C, an average of 16°C, and a peak temperature of 31°C. Precipitation is slightly higher in June, totaling 77 mm over 9 days, compared to May's 62 mm over 11 days. Both months exhibit similar humidity levels, with May at 79% and June at 80%. For more detailed insights into June weather, you can check Harrow on the Hill weather in June.
In May, temperatures range from a cool minimum of 1°C (35°F) to a comfortable maximum of 25°C (78°F), with an average of 13°C (55°F). The month experiences about 62 mm (2.5 in) of precipitation over 11 days, coupled with a relatively high humidity of 79%. In contrast, July sees significantly warmer temperatures, with a minimum of 9°C (49°F) and a maximum soaring to 36°C (96°F), resulting in an average of 18°C (65°F). Precipitation remains similar at 64 mm (2.5 in) over the same number of days, but humidity drops to 71%. For more detailed information, you can check Harrow on the Hill weather in July.
May and August present distinct weather patterns, showcasing the transitional nature of spring into summer. In May, temperatures range from a cool 1°C (35°F) at night to a comfortable 25°C (78°F) during the day, with an average of 13°C (55°F). This month experiences about 62 mm (2.5 in) of rain over 11 days, coupled with relatively high humidity at 79%. In contrast, August sees warmer temperatures, with minimums at 8°C (47°F) and maximums reaching 34°C (93°F), averaging around 18°C (64°F). Precipitation increases slightly to 70 mm (2.7 in) over 12 days, and humidity is marginally lower at 76%. For more details about August weather in this area, you can visit Harrow on the Hill weather in August.
May and September present distinct weather characteristics as the seasons transition from spring to autumn. In May, temperatures range from a chilly 1°C (35°F) at night to a pleasant 25°C (78°F) during the day, with an average temperature of 13°C (55°F). The month experiences about 62 mm (2.5 in) of precipitation over 11 days, along with a humidity level of 79%. In contrast, September enjoys slightly warmer nights with a minimum temperature of 4°C (39°F) and highs reaching up to 28°C (83°F); the average temperature is 15°C (59°F). Moreover, this month sees less rainfall, totaling approximately 45 mm (1.8 in) across 10 days, and a marginally higher humidity level of 82%. For more details, visit Harrow on the Hill weather in September.
In comparing the weather of May and October, we see some notable differences. May generally offers warmer temperatures, with an average of 13°C (55°F) and maximums reaching up to 25°C (78°F), while October cools down a bit with an average of 12°C (54°F) and maximums of 22°C (73°F). Precipitation is slightly higher in October at 84 mm (3.3 in) compared to 62 mm (2.5 in) in May, and rainfall occurs on about the same number of days—11 in May versus 12 in October. Additionally, October has a higher humidity level, reaching 90% compared to May's 79%. For more specifics on weather conditions during this month, you can check Harrow on the Hill weather in October.
In May, the weather begins to warm up, with temperatures ranging from a minimum of 1°C (35°F) to a pleasant maximum of 25°C (78°F), averaging around 13°C (55°F). The month experiences around 62 mm (2.5 in) of precipitation over 11 days, and humidity levels are relatively high at 79%. In contrast, November brings cooler conditions, with temperatures dipping to a minimum of -2°C (29°F) and reaching a maximum of 16°C (62°F), averaging 8°C (47°F). Precipitation is slightly lower at 52 mm (2.0 in) over the same number of days, though humidity rises to 92%, making the air feel colder. For more details on November weather in this area, you can visit Harrow on the Hill weather in November.
May and December present notably different weather conditions. In May, temperatures range from a minimum of 1°C (35°F) to a maximum of 25°C (78°F), with an average of 13°C (55°F). The month sees about 62 mm (2.5 in) of precipitation over approximately 11 days, accompanied by a humidity level of 79%. In contrast, December features cooler temperatures, with a minimum of -4°C (24°F) and a maximum of 14°C (58°F), averaging around 6°C (44°F). This month tends to be wetter, receiving 84 mm (3.3 in) of rain across 13 days and exhibiting higher humidity at 92%. For a detailed view of December’s weather conditions, check out Harrow on the Hill weather in December.
As May unfolds in Harrow on the Hill, residents and visitors alike can savor a delightful transition from the chilly grip of spring to the warmth of early summer. With temperatures peaking at a cozy 25°C, this month is notably milder than the preceding months, making outdoor activities increasingly appealing. However, the occasional drizzle reminds us that May is not without its share of rain, averaging 62 mm over 11 days. Humidity levels also rise, settling at a comfortable 79%, enhancing the lush greenery that characterizes the season. For those interested in understanding the broader climate patterns, detailed insights can be found at Harrow on the Hill Climate.