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Warning Information

Very Hot Weather Warning

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 potential heatstroke 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.

When engaged in outdoor work or 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. People
staying indoors without air-conditioning should keep windows
open as far as possible to ensure that there is adequate

Avoid prolonged exposure under sunlight. Light-coloured and
air-permeable clothing, wide-brimmed hats and ultraviolet
(UV) blocking sunglasses can reduce the chance of sunburn by
solar UV radiation.

Use a broad-spectrum sunscreen lotion of a Sun Protection
Factor (SPF) 15 or above generously. Apply again if you stay
out in the sun for more than two hours and 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.

Elderly persons or persons with chronic medical conditions
should avoid outdoor activities and stay away from hot
environment as far as possible. Stay in cool,
well-ventilated or air-conditioned places.

The obese, those with chronic illnesses, such as heart
disease or high blood pressure, the elderly and children are
more vulnerable to heat stroke. In very hot weather, they
should pay special attention and observe any symptoms of
heat stroke timely.

Dispatched by Hong Kong Observatory at 16:20 HKT on 25.06.2022

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