May weather forecast
Hong Kong

May marks the transition from spring to early summer in Hong Kong. It is characterized by warmer temperatures and increased rainfall. The average low temperature for this month is around 24°C (75.2°F), while the average high temperature reaches approximately 28°C (82.4°F). Although rare, it is still possible to experience a late cold front that causes temperatures to drop slightly.

Across Hong Kong, the variation in weather conditions remains minimal, but the outlying islands and hilly regions might experience slightly cooler temperatures compared to the urban areas due to their location and altitude.

May sees a sharp increase in rainfall compared to April, with average precipitation reaching around 300mm (11.81"). It signifies the onset of the rainy season, with the increased rainfall leading to a rise in humidity levels across the region.

When transitioning from May to June, temperatures continue to rise, with averages from 26°C (78.8°F) to 30°C (86°F), and rainfall sees another increase, averaging 400mm (15.75"). This shift marks the beginning of the hot and humid summer. Despite the increase in rainfall, May's warmer temperatures allow for an array of outdoor activities. Visitors should dress in lightweight clothing and be prepared for rain showers and high humidity.

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• Tai Po - May »
  May marks a significant shift in the weather characteristics of Tai Po, Hong Kong; the city shifts gears into the rainy season, characterized by high temperatures, heavy rainfall, and high humidity. The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth.
• Hong Kong - May »
  As May introduces the early phase of summer, the city of Hong Kong gears up for prolonged sunshine and increased heat. The months with the highest humidity are April and May, with an average relative humidity of 83%.
• Tin Shui Wai - May »
  On the last day of the month, in Tin Shui Wai, sunrise is at 05:39 and sunset at 19:03 HKT. May is the most humid month in Tin Shui Wai, with an average relative humidity of 83%.
• Kowloon - May »
  For any water activity, having surface water temperatures from 25°C (77°F) to 29°C (84.2°F) is considered outstanding and highly delightful for lengthened periods. For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.