Last updated: August 21, 2025
In May, Hong Kong experiences a delightful blend of warmth and humidity, with maximum temperatures reaching up to 33°C (92°F) and an average of 26°C (79°F). Despite the sun-filled days, visitors should prepare for the frequent rain, as 171 mm (6.7 in) of precipitation falls over 18 rainy days, elevating the average humidity to a sticky 79%. This vibrant city offers a dynamic atmosphere, but it's advisable to carry an umbrella while enjoying the lush surroundings and cultural richness that springtime brings.
In May, Hong Kong transitions into the warmth of spring, with temperatures reflecting the shift towards summer. The minimum temperature rises to a comfortable 18°C (64°F), while the average hits a pleasant 26°C (79°F), making it a delightful time for outdoor activities. Days can become quite warm, with maximum temperatures soaring to 33°C (92°F), signaling the onset of hotter months ahead. This trend reveals a pattern of increasing warmth, as the city shifts from cooler spring temperatures in April, where the max is 29°C (85°F), to a balmy May. Embrace the vibrant energy of Hong Kong during this month, where the weather invites exploration and enjoyment.
In May, Hong Kong experiences a significant uptick in precipitation, with an impressive 171 mm (6.7 in) recorded over 18 days of rainfall. This marks a notable increase from previous months, where April's total of 93 mm (3.7 in) fell over 12 days. The wettest months are just ahead, with June and August showing particularly heavy rainfall, but May serves as a clear indication that the region is entering its rainy season. The increased frequency of showers contributes to the lush greenery that characterizes this vibrant city, heralding a shift towards the summer months. As the weather warms, residents and visitors alike can expect more unpredictable rain, setting the stage for the lush landscapes that Hong Kong is known for.
As May arrives in Hong Kong, the city experiences a notable rise in humidity, peaking at 79%. This increase signals the transition from spring to the sultry days of summer. Following the pattern established in the earlier months, where humidity levels gradually climbed from 64% in January to 71% by April, May's figures reflect the impending summer heat. The trend suggests a shift towards more humid conditions, setting the stage for the peak summer months of July and August, both of which experience a staggering 88% humidity. As temperatures soar, residents can expect the air to become increasingly heavy and tropical, characteristic of Hong Kong's clime during this time of year.
As we step into May, Hong Kong sees a peak in the UV Index, climbing to an intense 14, categorized as extreme, which means a mere 10 minutes of unprotected sun exposure can lead to skin damage. This trend reflects a continuous rise in UV levels since the start of the year; while January's Index registered at 7, it escalated rapidly through February and March, ultimately reaching this yearly high. The consistent exposure category of extreme from March through June signals that sun safety is crucial during these months. As you enjoy the vibrant outdoor settings of Hong Kong, be sure to protect yourself by incorporating sunscreen and protective clothing into your routine. For more insights and details, visit the Hong Kong UV Index.
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As May arrives in Hong Kong, the city basks in an impressive 301 hours of sunshine, marking a peak in bright days for the year. This delightful month follows a gradual increase in sunlight, with April at 263 hours and providing a vibrant lead-in. The trend is clear: as winter transitions into summer, daylight hours soar, especially in July, which boasts a dazzling 323 hours of sunshine. Conversely, the year begins with the least sun in January, totaling just 216 hours. This sunny trajectory not only brightens the landscape but also invigorates the city's lively spirit, inviting both locals and tourists to relish the warmer, sunnier days ahead.
As May arrives in Hong Kong, the likelihood of sunny weather wanes significantly, dropping to 30%. This marks a sharp decline from the sunnier months of January and February, which boast 61% and 60% chances, respectively. However, as April rolls in, the chances for sunshine begin to diminish further, reaching a low of 42%. Following May, the trend continues downwards into June, with a mere 12% chance of sun. Nonetheless, as the year progresses, the sunny outlook fluctuates, with opportunities for warmer, brighter days peeking back in November and December. Overall, the spring transition in Hong Kong highlights a notable dip in sunny days, making May a month where, despite the warmth, clouds may often claim the skies.
As spring transitions into summer, May in Hong Kong shines brightly with 13 hours of daylight, marking an upward trend that began in March. This increase from 12 hours in both April and the preceding months symbolizes the city’s gradual embrace of longer, sunlit days. Following May, daylight remains consistent, maintaining the same generous duration through June and July. However, as summer wanes, the gradual decline begins, with daylight decreasing to 12 hours in August. This pattern illustrates a rhythmic ebb and flow of light, perfectly capturing the essence of the seasons in vibrant Hong Kong.
In Hong Kong, the wind speeds breathe a rhythmic cadence throughout the year, reflecting the changing seasons. January kicks off with an average wind speed of 5.1 m/s (11 mph), gradually cooling down to 4.4 m/s (10 mph) in February. By March and April, winds lightly whisper at 4.7 m/s and 4.6 m/s, creating a serene atmosphere. As we transition into May, the breezes soften further to 3.7 m/s (8 mph), signaling the onset of summer. This gentle lull continues through June and July, where speeds hover around 3.8 m/s and 3.4 m/s respectively. However, the winds return with vigor in October, reaching 6.4 m/s (14 mph), before settling down again in November at 4.9 m/s. Overall, the data reflects a distinct trend: wind speeds are generally higher in the cooler months, creating a vibrant contrast to the warmer, more tranquil summer days in this bustling metropolis.
Weather in Hong Kong varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Hong Kong, focusing on differences in temperature, rainfall, humidity, and UV levels.
May weather in Hong Kong is markedly warmer and more humid than in January. With average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 33°C (92°F), May sees a significant increase in warmth, making it one of the hotter months of the year. It also experiences a higher level of precipitation, averaging 171 mm (6.7 in) over 18 days, contributing to the humidity level of 79%. In contrast, January offers much cooler temperatures, with averages between 8°C (46°F) and 24°C (75°F) and much less rainfall, totaling just 21 mm (0.8 in) over 4 days, along with lower humidity at 64%. For more details on January weather, you can check Hong Kong weather in January.
In comparing the weather between May and February, we see a significant contrast. May experiences warmer temperatures, with a minimum of 18°C (64°F) and an average of 26°C (79°F), peaking at 33°C (92°F). In contrast, February is much cooler, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 24°C (76°F) and an average of 17°C (64°F). While May is characterized by higher humidity at 79% and considerable rainfall, totaling 171 mm (6.7 in) over 18 days, February has a lower precipitation level of 52 mm (2.0 in) spread over just 7 days and a humidity of 68%. For more details on February weather, you can check out Hong Kong weather in February.
May weather in Hong Kong is characterized by warmer temperatures, with a minimum of 18°C (64°F) and an average of 26°C (79°F), reaching highs of up to 33°C (92°F). In contrast, March offers cooler conditions, starting at a minimum of 12°C (54°F) and averaging 21°C (70°F), with a peak temperature of 27°C (80°F). Additionally, May experiences significantly higher precipitation, with 171 mm (6.7 in) over 18 days, compared to March's more moderate 60 mm (2.4 in) across 10 days. Humidity levels in May are also higher at 79%, compared to 73% in March, making the latter month generally more comfortable. For further details, you can check out Hong Kong weather in March.
The weather in May is noticeably warmer and more humid compared to April. While April's temperatures range from a minimum of 14°C (58°F) to a maximum of 29°C (85°F), May sees higher figures with a minimum of 18°C (64°F) and a maximum of 33°C (92°F). Additionally, May experiences significantly more rainfall, accumulating 171 mm (6.7 in) over 18 days, whereas April has only 93 mm (3.7 in) over 12 days. The humidity levels also rise from April's 71% to May's 79%, making May feel even more muggy. For more detailed information, you can check Hong Kong weather in April.
In comparing the weather of May and June, we see that both months experience warm temperatures, with June having a slightly higher average of 28°C (83°F) compared to May's 26°C (79°F). The minimum temperatures in June are also notably warmer, sitting at 24°C (76°F) against May's 18°C (64°F). However, June brings increased precipitation, with 325 mm (12.8 in) falling over 24 days, compared to May's 171 mm (6.7 in) across 18 days. Humidity remains relatively similar, hovering around 79% in May and slightly decreasing to 77% in June. For more details on the weather patterns, you can check Hong Kong weather in June.
In comparing the weather between May and July, we see a noticeable shift in temperature and humidity levels. May features a minimum temperature of 18°C (64°F) and an average of 26°C (79°F), while July's minimum rises to 25°C (78°F) and averages 29°C (84°F). Both months experience similar maximum temperatures, peaking at 33°C (92°F). However, July is characterized by higher humidity at 88%, compared to May's 79%. Additionally, July sees more precipitation, with 219 mm (8.6 in) over 24 days, compared to May's 171 mm (6.7 in) over 18 days. For a detailed look at the weather in July, visit Hong Kong weather in July.
When comparing the weather in May and August, it's clear that August tends to be warmer and wetter. May has a mild temperature range with a minimum of 18°C (64°F) and an average of 26°C (79°F), while August sees higher temperatures, with a minimum of 26°C (78°F) and an average of 28°C (83°F). Additionally, August experiences significantly more rainfall, accumulating 384 mm (15.1 in) over 25 days, compared to May's 171 mm (6.7 in) over 18 days. The humidity also rises in August, reaching 88% compared to May's 79%. For a more detailed outlook on this, check out Hong Kong weather in August.
May and September present distinct weather patterns, showcasing the transition from spring to early autumn. In May, temperatures range from a minimum of 18°C (64°F) to a maximum of 33°C (92°F), with an average of 26°C (79°F). The month is characterized by relatively high humidity at 79% and significant rainfall of 171 mm (6.7 in) across 18 days. In contrast, September is slightly warmer, with minimum temperatures of 24°C (76°F) and a maximum of 32°C (91°F), averaging 28°C (83°F). However, it experiences more precipitation, totaling 223 mm (8.8 in) over 22 days, with humidity slightly lower at 75%. For a more detailed look at the weather trends during this month, visit Hong Kong weather in September.
May and October have similar average temperatures, with May slightly warmer, averaging 26°C (79°F) compared to October's 26°C (78°F). However, May tends to be wetter, receiving 171 mm (6.7 in) of precipitation over 18 days, while October experiences 189 mm (7.4 in) but over just 10 days, suggesting more intense rainfall. Additionally, humidity levels are notably higher in May at 79%, in contrast to October's 65%, making October feel relatively more comfortable. For more detailed information, you can visit Hong Kong weather in October.
In May, the weather is characterized by warmer temperatures, with a minimum of 18°C (64°F) and an average high reaching 33°C (92°F), resulting in a sultry atmosphere with high humidity at 79%. This month experiences considerable rainfall, totaling 171 mm (6.7 in) across approximately 18 days, making it one of the wetter months of the year. In contrast, November brings a cooler and drier climate, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 28°C (82°F) and an average of 22°C (72°F). The month sees only 36 mm (1.4 in) of precipitation over just 4 days, along with a lower humidity level of 64%. For more detailed weather information, you can visit Hong Kong weather in November.
May and December present strikingly different weather in Hong Kong. In May, temperatures range from a minimum of 18°C (64°F) to a maximum of 33°C (92°F), with an average temperature of 26°C (79°F). This month is characterized by high humidity at 79% and substantial rainfall, totaling 171 mm (6.7 in) across 18 days. In contrast, December is much cooler, with temperatures ranging from 10°C (49°F) to 26°C (78°F) and an average of 18°C (65°F). Precipitation is significantly lower at 31 mm (1.2 in) over just 4 days, and humidity drops to 69%. For more detailed information, you can refer to Hong Kong weather in December.
As May arrives in Hong Kong, the weather shifts notably from the cooler months, bringing a delightful warmth that beckons both locals and tourists outdoors. With average temperatures climbing to 26°C, the city enjoys a blend of summer heat and refreshing breezes, although humidity levels elevate to around 79%, creating a sticky yet lively atmosphere. Rainfall becomes more frequent, with 18 days of precipitation, totaling 171 mm, hinting at the coming summer storms. This transitional month sets the stage for the sweltering heat of June, making it an ideal time to explore the city's vibrant culture before the peak of summer. For a deeper dive into the region's weather patterns, check out Hong Kong Climate.