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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.
Pedestrians brave heavy rain in Tai Wai on Tuesday. Photo: Sam Tsang
Hong Kong weather

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

Observatory has issued 48 rainstorm warnings since start of last month, nearly double number sent out during same period last year.

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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

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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.

Residents brave the rain in To Kwa Wan. Photo: Elson Li
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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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.

Cloudy skies over Hong Kong harbour as a resident takes shelter at Sai Ying Pun Harbourfront Park. Photo: Karma Lo
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Intensity of floods prompts some users online to claim picture of the extreme was outdated or even AI-generated, only to be proved wrong.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.

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’.

Cloudy skies over Victoria Harbour on Thursday morning. Photo: Robert Ng
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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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.

Hongkongers take advantage of the change in weather. Photo: Karma Lo
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.

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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.

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

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.

Lightning struck a diving platform at the Sha Tin Jockey Club Swimming Pool. Photo: Handout
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 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.

Joggers on Kwun Tong Promenade on Friday. Photo: Edmond So
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.

Hong Kong weather

Hong Kong issues year’s first ‘very hot weather’ warning

Weather forecaster says temperatures are expected to hover around 33 degrees until Friday before easing slightly over the weekend.

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