Gregorian/Lunar Calendar
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Hong Kong Observatory Open Data

Name of Dataset
Frequency of Update (e.g. real-time; daily; weekly; monthly ...)
Description
Twice daily and as necessary
Provide 9-day weather forecast of Hong Kong
Hourly and as necessary
Provide current weather report of Hong Kong
Hourly and as necessary
Provide local weather forecast for today and/or tomorrow
As and when necessary
Provide detailed information of weather warning(s) in force
As and when necessary
Provide a summary of the weather warning(s) in force in Hong Kong
As and when necessary
Provide special weather tips in force in Hong Kong
As and when necessary
Provide information on earthquakes of magnitude 6.0 or above worldwide, as analyzed by the Hong Kong Observatory
As and when necessary
Provide reports on earth tremors felt in Hong Kong
Monthly
Data on daily maximum, mean and minimum temperatures
Real-time
Provide regional Weather in Hong Kong - latest 10-minute mean visibility (the data provided is provisional)
Real-time
Provide cloud-to-ground and cloud-to-cloud lightning count over Hong Kong territory in the past hour (the data provided is provisional)
Real-time and as necessary
Provide tropical cyclone track information
Daily and Yearly
Provide times of Sunrise, Sun Transit, Sunset
Daily and Yearly
Provide times of Moonrise, Moon Transit, Moonset
Once yearly
Provide predicted tidal information (Hourly heights of tides)
Once yearly
Provide predicted tidal information (Times and heights of high and low tides)