Hong Kong Weather Forecast 2025-05-22T23:15:00+08:00
General Situation
An anticyclone aloft covered the coast of Guangdong and the northern part of the South China Sea today. Locally, there were sunny periods today, with isolated showers at first. It was very hot during the day. Temperatures rose to around 33 degrees in the urban areas, and a couple of degrees higher in the New Territories. The anticyclone aloft will continue to bring very hot weather to the coast of Guangdong tomorrow. The trough of low pressure now over central China will move across the coast of southern China tomorrow night to Saturday. There will be a few showers over the region.
Forecast Description
Mainly cloudy. The minimum temperature will be about 28 degrees in the morning. Very hot with sunny periods during the day. The maximum temperature will be around 33 degrees in the urban areas, and a couple of degrees higher in the New Territories. A few showers and isolated thunderstorms later. Moderate southerly winds.
A few showers on Saturday. Temperatures will fall slightly and it will be drier in the following couple of days. There will be showers and thunderstorms midweek next week.
Special Weather Tips
Prolonged heat alert! Please drink sufficient water. If feeling unwell, take rest or seek help immediately. If needed, seek medical advice as soon as possible.
Weather Warning Information
The Very Hot Weather Warning is now in force.
Under the influence of prolonged heat, members of the public should stay on the alert to prevent heat stroke or other discomforts related to very hot weather and pay due attention to health conditions. If symptoms such as dizziness, headache, nausea, shortness of breath or confusion develop, take rest and seek help immediately, and seek medical advice as soon as possible.
Elderly persons, pregnant women, infants and children, those with chronic illnesses, such as heart disease or high blood pressure, as well as the obese are more vulnerable to heat stroke. Watch out for any symptoms of heat stroke.
When engaged in work under hot weather or high-temperature environments, please refer to the Guidance Notes on Prevention of Heat Stroke at Work of the Labour Department and take necessary precautions.
When engaged in outdoor activities, drink more water and avoid over exertion. If not feeling well, take a rest in the shade or cooler place as soon as possible. Perform outdoor activities in the morning or late afternoon.
During indoor activities, replenish water timely. If there is no air-conditioning, then windows should be kept open and fans be used as far as possible to maintain adequate indoor ventilation. Public facilities with heat sheltering may also be used.
Avoid prolonged exposure under sunlight. Light-coloured and air-permeable clothing, a wide-brimmed hat that covers the back of your neck and ultraviolet (UV) blocking sunglasses can reduce the chance of sunburn by solar UV radiation.
Choose a broad-spectrum water-resistant sunscreen product with a sun protective factor (SPF) of 30 or higher when doing outdoor activities and apply liberally; reapply every two hours if you need to stay outdoors for a prolonged period, or after swimming, sweating or towelling off.
Beware of health and wellbeing of elderly or persons with chronic medical conditions. If you know of them, call or visit them occasionally and check whether their household ventilation and air-conditioning devices function properly.
Those more vulnerable to heat stroke should avoid outdoor activities and stay away from hot environment as far as possible. Stay in cool, well-ventilated or air-conditioned places.