Annual Outlook for 2025

19 March 2025

The Observatory has issued the annual outlook for 2025. Taking into consideration a number of factors including the development of El Niño/ La Niña, climate model predictions and objective guidance, it is expected that the number of tropical cyclones coming within 500 kilometres of Hong Kong this year will be normal to above normal, around 5 to 8 tropical cyclones. The tropical cyclone season is likely to start in June or before, and end in October or later. The annual rainfall in Hong Kong for this year is expected to be near normal. However, Hong Kong is still likely to be affected by rainstorms and localized heavy rain. Members of the public are reminded to be prepared for the rain and tropical cyclone seasons. As the climate continues to warm, the annual mean temperature in Hong Kong is expected to be above normal.