Tourism chief Kevin Yeung said a pyrotechnic display scheduled for May 1 may be cancelled because of bad weather.

The show, hosted by the Hong Kong Tourism Board, is set to be held across Victoria Harbour to kick off a campaign of regular fireworks displays aimed at boosting tourism.

But according to the Observatory's forecast, the weather on Labour Day is expected to be cloudy with showers and squally thunderstorms.

The secretary for culture, sports and tourism on Sunday said authorities could wait until Wednesday to decide whether the show would be held as planned.

"We shall keep an eye on the weather and make announcements as early as possible. It may not be until the afternoon of May 1 that we can officially say whether the display will be affected," Yeung said.

"We hope that tourists coming to Hong Kong will be prepared mentally that some performances may not be possible due to the rain."

Yeung also said the administration is prepared for the arrival of visitors in the coming week, adding that hotel bookings for the Golden Week holiday have been strong.

”The Golden Week holiday will help boost businesses in Hong Kong. Of course, I hope if the weather is good, it will be more convenient for those visiting Hong Kong," he said.