Annual outlook for 2023

7 March 2023

The Observatory has issued the annual outlook for 2023. 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 tropical cyclone season may start in June or later, and end in October or earlier. There will be about four to seven tropical cyclones coming within 500 kilometres of Hong Kong this year, which is near normal. Annual rainfall is expected to be normal to below normal, but Hong Kong would still be affected by 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, with a high chance of reaching the warmest top 10 on record.