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Hong Kong Observatory

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Hong Kong Observatory
天文台
The latest news, analysis and opinion on Hong Kong Observatory. In-depth analysis, industry insights and expert opinion.
Waves crash onto the Kennedy Town promenade on Sunday morning. Photo: Karma Lo
Hong Kong weather

Typhoon Noul: 360 flights cancelled as Hong Kong lowers T3 signal to T1

More than 190 high-speed rail services also disrupted on Sunday, while Airport Authority says many flights to resume in afternoon.

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Hong Kong weather

Hong Kong surpasses July rainfall in just 20 days – why?

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Hong Kong weather

Squally thunderstorms set to hit parts of Hong Kong within hours

Hong Kong weather

Hong Kong cancels amber rainstorm warning but unsettled weather to persist

The warning was reissued at 9.30am, nearly 1½ hours after raising the red signal.

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The Hong Kong Observatory says unsettled weather will continue to affect the city on Tuesday. Photo: Jelly Tse
Hong Kong weather

Hong Kong to brace for wet weekend as showers and thunderstorms loom

Rain expected to gradually ease starting from Tuesday next week, forecaster says.

Hong Kong weather

Hong Kong cancels amber rainstorm warning after heavy showers disrupt classes

Education Bureau says students attending morning and whole-day schools are not required to go to class, adding afternoon classes will proceed as usual.

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Hong Kong weather

Hong Kong issues amber rainstorm warning, urges public to take precautions

Observatory warns widespread heavy rain could affect Hong Kong in couple of hours and that intense gusts could continue to affect city.

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Students brave the heavy rain in Wan Chai last month. Photo: Nora Tam
Hong Kong weather

Hong Kong Observatory may issue T1 signal between Monday night, Tuesday morning

Heavy rains expected as low pressure trough in northern South China Sea could skirt within 100km of city on Tuesday morning, forecaster says.

Hong Kong weather

Clips of flooded Hong Kong rivers, streets go viral online after heavy rain

Intensity of floods prompts some users online to claim picture of the extreme was outdated or even AI-generated, only to be proved wrong.

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Hong Kong weather

Hong Kong lifts amber rainstorm warning, but wet weather to remain

Strong winds, swells and heavy showers expected until middle of next week, Observatory says.

A woman and a child take shelter from strong winds and rain in Tsim Sha Tsui. Photo: Jelly Tse
Hong Kong weather

Hong Kong Observatory cancels amber rainstorm warning, says ‘low’ chance of T3

Forecaster says Tropical Storm Maysak estimated to be about 660km southwest of Hong Kong.

The Observatory cancelled the amber rainstorm signal at 4.10pm. Photo: Robert Ng
Hong Kong weather

T1 to stay in force until Friday noon as tropical depression approaches Hong Kong

Observatory to assess need for issuing No 3 typhoon signal later, ‘depending on changes in intensity of tropical cyclone’.

Hong Kong weather

Hong Kong to issue No 1 typhoon signal on Thursday as tropical depression nears

Storm is expected to remain about 400km from the city, weather forecaster says.

Hong Kong weather

Record heat expected in Hong Kong this year as ‘super’ El Nino threatens

Pacific sea surface temperatures expected to rise further, developing into ‘super strong’ El Nino that could also lead to more intense tropical typhoons.

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Visitors under the scorching sun at the Tsim Sha Tsui waterfront on Tuesday. Photo: Jelly Tse
Hong Kong weather

Hong Kong Observatory cancels amber rainstorm warning on Sunday afternoon

Forecaster issued the rainstorm warning at 11.10am and took it down at 2.35pm.

Pedestrians shelter under umbrellas in Wan Chai. Photo: Karma Lo
Hong Kong weather

Sunny spells for Dragon Boat Festival, day after 2 black rainstorm warnings

Hong Kong Observatory says hot weather likely to continue over weekend, as hikers warned to be mindful of conditions.

Artificial intelligence

Chinese AI improves forecasts as Hong Kong braces for super typhoons

A new model deployed at Hong Kong Observatory and National Meteorological Centre uses machine learning algorithms to boost forecast accuracy.

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Hong Kong weather

Video | Flooding as Hong Kong hit with Black Rain storm

At least 13 locations across the New Territories reported floods.

Hong Kong’s second black rainstorm warning of the year was issued on Thursday, as a majority of the New Territories was struck by floods.
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Hong Kong weather

Video | Hong Kong’s colour-coded rain warning system

The city’s weather forecaster established a 3 tier colour-coded warning system in 1998 to categorise the severity of heavy rain conditions.

Hong Kong weather

Hong Kong cancels amber rainstorm warning but more downpours expected

Unsettled weather expected to continue over the next few days.

Hong Kong weather

Hong Kong to face showers, unstable weather ahead of sunny Dragon Boat Festival

Observatory warns of downpours and ‘unsettled’ weather in the coming days, before clearing up for the holiday.

Tourists brave stormy weather at the Tsim Sha Tsui waterfront. Photo: Jelly Tse
Hong Kong society

Should Hong Kong close swimming pools during thunderstorms?

Nick Wu, vice-chairman of Hong Kong and Kowloon Life Guards’ Union, says existing guidelines do not require public pools to close during thunderstorms.

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Lightning flashes over Hong Kong's Victoria Harbour on June 6. Photo: Karma Lo
Hong Kong weather

Hong Kong cancels amber rainstorm warning for second time

Observatory earlier warned of flash flood risk, with wet weather expected to continue into Monday.

Hong Kong weather

Hong Kong cancels all rainstorm warnings after issuing first black alert of 2026

Observatory issued the first black rainstorm warning of the year for an hour.

Hong Kong weather

Heavy showers, squally thunderstorms forecast for Hong Kong until Tuesday

Around 30mm of rainfall was recorded in many parts of the New Territories, while more than 50mm fell in Sai Kung.

Hong Kong continues to face a rainy weekend. Photo: Dickson Lee
Hong Kong weather

Hong Kong cancels all rainstorm warnings but showers, thunderstorms to persist

Heavy showers and squally thunderstorms are expected until midweek, while high temperatures will ease, Observatory says.

Lightning flashes over the Hong Kong skyline above Victoria Harbour. Photo: Karma Lo
Hong Kong weather

Hong Kong issues amber rainstorm warning after intense heatwave grips city

Parts of New Territories record maximum temperature of 36.7 degrees by mid-afternoon on Friday, the hottest for 2026 so far.

Hong Kong weather

Hong Kong braces for Friday scorcher as mercury climbs to 33.7 degrees

Heatwave expected to peak on Friday, triggering ‘extremely hot’ daytime forecast with temperatures of 36 to 37 degrees in New Territories.

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