Hong Kong weather
Live readings, warning signals and the 9-day forecast from the Hong Kong Observatory. Updated every 10 minutes; typhoon and rainstorm warnings follow official announcements.
Fire Danger Warning
9-day forecast
Mainly cloudy. Sunny intervals during the day. A few showers in the afternoon. Showers will increase at night with a few squally thunderstorms.
Mainly cloudy with occasional showers. Showers will be heavy with a few squally thunderstorms at first. Showers will ease off during the day. Sunny periods in the afternoon.
Mainly cloudy. Sunny periods during the day.
Cloudy with a few rain patches.
Mainly cloudy. One or two rain patches in the morning and at night, visibility relatively low in some areas. Sunny intervals during the day.
Mainly cloudy. A few rain patches at first. Sunny intervals during the day. Temperatures will fall appreciably later.
Sunny intervals. Slightly cooler in the morning.
Sunny intervals. Slightly cooler in the morning.
Sunny intervals.
General situation
Under the influence of upper-air disturbances, there will be showers and a few squally thunderstorms over southern China today and tomorrow. An easterly airstream is expected to affect the coast of Guangdong early next week. There will be a few rain patches over the region. It will be relatively humid in the morning and at night. A cold front will reach the coast of Guangdong midweek next week. Under the influence of the associated northeast monsoon, winds will become northerlies and temperatures will fall appreciably over the region in the latter part of next week.
District temperatures
Where the readings come from
Every reading on this page is published by the Hong Kong Observatory through its open data service. The dashboard reads a single station — the Observatory headquarters in Tsim Sha Tsui — for temperature, humidity, UV index and rainfall since midnight, and is reissued about every 10 minutes; the 9-day forecast is regenerated a few times a day, and the district table follows the hourly station readings.
Two limits matter. Warnings here copy the official bulletin and can trail an announcement by a few minutes, so for school closures and ferry suspensions check the announcement itself. And a forecast beyond about four days is a trend, not a promise — plan an umbrella, not a boat trip.
Frequently asked
How often are the readings updated?
Current temperature, humidity, UV index and rainfall come from the Observatory’s open data and are refreshed roughly every 10 minutes; the 9-day forecast is reissued a few times a day and the district table follows the hourly reading. The page itself does not cache beyond that, so a reload picks up the latest published value.
Why is it warmer or colder than my phone says?
The big number is the reading at the Hong Kong Observatory headquarters in Tsim Sha Tsui, which is the official reference for the whole territory. Your phone probably shows a district or a model grid point, and urban districts such as Mong Kok routinely run a degree or two warmer than the headquarters, while hilltop and coastal spots run cooler.
What do the typhoon and rainstorm signals actually change?
Signal 8 and the black rainstorm warning are the two that stop the city: ferries and most buses wind down, offices and schools close, and the MTR keeps running but with reduced service. Signal 3 and the amber and red rainstorm warnings are advisory — life continues, but outdoor plans are worth rethinking. Nothing on this page replaces an official announcement.
How reliable is the 9-day forecast?
The first three or four days are usually close; beyond that the forecast is a trend rather than a promise, and the outlook text is updated as models change. In the wet season a “showers” day can still be dry for most of the afternoon, and in typhoon season the track can shift hundreds of kilometres within 48 hours.
Source: Hong Kong Observatory open data. For reference only — follow official announcements for travel and school closure decisions.