Climate and Weather

Provide 9-day weather forecast of Hong Kong

Provide current weather report of Hong Kong. The multiple file formats are available for datasets download in API.

Data on daily global solar radiation (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily grass minimum temperature (Please visit the reference link for other climate information)

Data on daily maximum and mean Hong Kong Heat Index (Please visit the reference link for other climate information)

Data on daily maximum and mean UV indices (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily maximum, mean and minimum temperatures (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily mean amount of cloud (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily mean dew point temperature (Please visit the reference link for other climate information)

Data on daily mean pressure (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily mean relative humidity (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily mean sea temperature (Please visit the reference link for other climate information)

Data on daily mean wet bulb temperature (Please visit the reference link for other climate information)

Data on daily mean wind speed (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily number of hours of reduced visibility (Please visit the reference link for other climate information)

Data on daily prevailing wind direction (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily total bright sunshine (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily total cloud-to-cloud lightning count over Hong Kong territory (Please visit the reference link for other climate information)

Data on daily total cloud-to-ground lightning count over Hong Kong territory (Please visit the reference link for other climate information)

Data on daily total evaporation (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Data on daily total rainfall (Please visit the reference link for other climate information). The multiple file formats are available for datasets download in API.

Convert Gregorian date to Lunar date (in Chinese only)

Provide half-hourly gridded rainfall nowcast data in Hong Kong up to the next two hours. The multiple file formats are available for datasets download in API.

Provide the 10 most recent 10-minute mean Hong Kong Heat Index (the data provided is provisional)

Provide information on Hong Kong Observatory resource centre. The multiple file formats are available for datasets download in API.

Provide the latest 15-minute mean UV index from 7:00 a.m. to 6:00 p.m. Hong Kong time. The multiple file formats are available for datasets download in API.

Provide latest tidal information. The multiple file formats are available for datasets download in API.

Provide latest tidal information

Provide cloud-to-ground and cloud-to-cloud lightning count over Hong Kong territory in the past hour (the data provided is provisional). The multiple file formats are available for datasets download in API.

Provide local weather forecast for today and/or tomorrow

Provide reports on earth tremors felt in Hong Kong. The multiple file formats are available for datasets download in API.

Data on monthly total potential evapotranspiration

Provide information on the network of weather stations in Hong Kong. The multiple file formats are available for datasets download in API.

Provide predicted tidal information (Hourly heights of astronomical tides). The multiple file formats are available for datasets download in API.

Provide predicted tidal information (Times and heights of astronomical high and low tides). The multiple file formats are available for datasets download in API.

Provide information on earthquakes of magnitude 6.0 or above worldwide, as analyzed by the Hong Kong Observatory. The multiple file formats are available for datasets download in API.

This dataset provides rainfall amount measured at automatic weather station during the 1-hour period ending at the observation time. The multiple file formats are available for datasets download in API. Please note the following in using this dataset: (i) The rainfall data in this dataset is originated from automatic weather stations. In particular, the source of rainfall data of automatic weather station “Hong Kong Observatory” in this dataset is different from the official record of Hong Kong Observatory rainfall data as given in the climatological database, other weather bulletins such as Current Weather Report, Yesterday’s Weather and Radiation Level, etc. (ii) The rainfall data in this dataset is provisional. Only limited data validation has been carried out. Users should take note of this limitation in using the data.

Provide regional weather in Hong Kong - past 24-hour temperature difference (the data provided is provisional). The multiple file formats are available for datasets download in API.

Provide regional weather in Hong Kong - the latest 1-minute global solar radiation and direct solar radiation and diffuse radiation  (the data provided is provisional). The multiple file formats are available for datasets download in API.

Provide regional weather in Hong Kong - the latest 1-minute mean air temperature (the data provided is provisional). The multiple file formats are available for datasets download in API.