Data to be used from eight additional sites across the city in an effort to provide more accurate readings and issue faster warnings
2-MIN READ2-MIN ListenFiona ChowPublished: 5:40pm, 13 Apr 2026Updated: 5:43pm, 13 Apr 2026Hong Kong’s labour authorities have expanded heat stress monitoring to include data from 10 sites, enabling faster alerts to better safeguard outdoor workers.
Deputy Commissioner for Labour Vincent Fung Hao-yin said on Monday that the department would incorporate data from the Hong Kong Observatory’s newly added monitoring stations at eight sites across the city.
The move is intended to provide a more accurate picture of local heat stress levels and to issue warnings when outdoor workers should take breaks of at least 15 minutes.
The weather forecaster measures heat levels using the Wet Bulb Globe Temperature Index, which previously relied on data from detectors at King’s Park Meteorological Station in Tsim Sha Tsui and along the Beas River in Sheung Shui.
It has added detectors at its headquarters in Tsim Sha Tsui, as well as in Chek Lap Kok, Happy Valley, Kowloon Bay, Sha Tin, Wetland Park in Tin Shui Wai, Wong Chuk Hang and Kau Sai Chau, an island off Sai Kung.
With the enhancement taking effect next Monday, Fung said the department will use data from the new locations when assessing whether to issue a heat warning.
“Recently, [the Observatory] announced that they have additional stations receiving such data on heat stress, so that we are able to leverage on this new development, to make good use of this data, and to further enhance our heat stress warning system,” Fung said.
