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About this Website
Under the framework of operational cooperation among Guangdong Meteorological Service, Hong Kong Observatory, and Macao Meteorological and Geophysical Bureau, the Weather Website for Greater Bay Area is developed and operated by the Hong Kong Observatory, providing weather information of more than 60 districts of 11 cities in the Guangdong, Hong Kong , Macao Greater Bay Area, which comprises the two Special Administrative Regions of Hong Kong and Macao, and the nine municipalities of Guangzhou, Shenzhen, Zhuhai, Foshan, Huizhou, Dongguan, Zhongshan, Jiangmen and Zhaoqing, with a view to delivering convenient and reliable quality weather services for citizens who travel frequently around the area. The information on this website is provided by Guangdong Meteorological Service, Hong Kong Observatory, and Macao Meteorological and Geophysical Bureau.
This page is to provide the public with the latest weather information. Only limited quality control has been applied to the data. Lightning data is updated every 5 minutes. Observations on temperature, humidity, wind direction and wind speed are updated every 10 minutes. One-hour rainfall data is updated every 30 minutes. Despite of lightning data, the observation time will be displayed on pressing the data. Some of the data may be substituted by data of neighbouring district when the instrument is being repaired. Data update on this website may be deferred owing to transmission time.

An overview of the weather warning services operated by Guangdong Meteorological Service, Hong Kong Observatory and Macao Meteorological and Geophysical Bureau

Weather Warning Category Guangdong Province (Some links only available in Chinese) Hong Kong Macao
Tropical cyclone related Warning of Typhoon
White Warning of TyphoonBlue Warning of TyphoonYellow Warning of TyphoonOrange Warning of TyphoonRed Warning of Typhoon
Tropical Cyclone Warning Signal
Standby Signal No. 1Strong Wind Signal No. 3No. 8 Southeast Gale or Storm SignalNo. 8 Southwest Gale or Storm SignalNo. 8 Northeast Gale or Storm SignalNo. 8 Northwest Gale or Storm SignalIncreasing Gale or Storm Signal No. 9Hurricane Signal No. 10
Tropical Cyclone Signal
Tropical Cyclone Signal No. 1Tropical Cyclone Signal No. 3Tropical Cyclone Signal No. 8NETropical Cyclone Signal No. 8SE
Tropical Cyclone Signal No. 8SWTropical Cyclone Signal No. 8NWTropical Cyclone Signal No. 9Tropical Cyclone Signal No. 10
Storm Surge Warning
Blue Storm Surge WarningYellow Storm Surge WarningOrange Storm Surge WarningRed Storm Surge WarningBlack Storm Surge Warning
Rainstorm related Warning of Rainstorm
Yellow Warning of RainstormOrange Warning of RainstormRed Warning of Rainstorm
Warning of Geo-Hazard[2]
Yellow Warning of Geo-HazardOrange Warning of Geo-HazardRed Warning of Geo-Hazard
Rainstorm Warning Signal
Yellow Rainstorm Warning SignalRed Rainstorm Warning SignalBlack Rainstorm Warning Signal
Special Announcement on Flooding in northern New Territories
Special Announcement on Flooding in northern New Territories
Landslip Warning
Landslip Warning
Rainstorm Warning Signal
Yellow Rainstorm Warning SignalRed Rainstorm Warning SignalBlack Rainstorm Warning Signal
Severe convective weather related Warning of Thunderstorm
Yellow Warning of ThunderstormOrange Warning of ThunderstormRed Warning of Thunderstorm
Warning of Lightning[1]
Yellow Warning of Lightning
Warning of Hail
Orange Warning of HailRed Warning of Hail
Thunderstorm Warning
Thunderstorm Warning

With regard to the circumstances, the associated high-impact weather information, including violent gusts, hail, waterspout and tornado, will be mentioned in the warning.

Thunderstorm Warning
Thunderstorm Warning
Monsoon related Warning of Strong Monsoon[1]
Blue Warning of Strong MonsoonYellow Warning of Strong MonsoonOrange Warning of Strong MonsoonRed Warning of Strong Monsoon
Strong Monsoon Signal
Strong Monsoon Signal
Strong Monsoon Signal
Strong Monsoon Signal
Temperature related Warning of Heat Wave
Yellow Warning of Heat WaveOrange Warning of Heat WaveRed Warning of Heat Wave
Warning of Cold
Yellow Warning of ColdOrange Warning of ColdRed Warning of Cold
Warning of Road Icing
Yellow Warning of Road IcingOrange Warning of Road IcingRed Warning of Road Icing
Very Hot Weather Warning
Very Hot Weather Warning

With regard to the circumstances, "Extremely Hot Weather" and "Prolonged Heat" Special Alert will be issued.

Cold Weather Warning
Cold Weather Warning
Frost Warning
Frost Warning
Hot Weather Alert
Yellow Hot Weather AlertOrange Hot Weather Alert
Cold Weather Alert
Yellow Cold Weather AlertOrange Cold Weather Alert
Temperature Drop Alert
Temperature Drop Alert
Humidity related
Guangdong province Warning of Drought[2]
Yellow Warning of Drought
Warning of Wild Fire
Yellow Warning of Wild FireOrange Warning of Wild FireRed Warning of Wild Fire
Hong Kong Fire Danger Warning
Yellow Fire Danger WarningRed Fire Danger Warning
Visibility related
Guangdong province Warning of Heavy Fog
Yellow Warning of Heavy FogOrange Warning of Heavy FogRed Warning of Heavy Fog
Warning of Dust-haze
Yellow Warning of Dust-haze
Tsunami related
Hong Kong Tsunami Warning
Tsunami Warning
Macao Tsunami Warning Signal
Orange Tsunami Warning SignalRed Tsunami Warning SignalBlack Tsunami Warning Signal

For detailed information on various warning signals for Shenzhen and Zhuhai, please refer to Weather Warnings and Signal of Meteorological Bureau of Shenzhen Municipality and Weather Warning Signals of Meteorological Bureau of Zhuhai (Chinese only).

Note:

[1] Applicable to Shenzhen and Zhuhai only. Warning of Strong Monsoon for Zhuhai is only indicated as yellow.

[2] Applicable to Shenzhen only.