Hong Kong Regional Weather Information Portal
Legends and Icons
| Temperature, Maximum Temperature, Minimum Temperature, Grass Temperature |
Degree Celsius (°C)
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| Relative Humidity |
Percent (%)
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| Past 24-hour Temperature Difference |
Degree Celsius (°C)
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| Wind Speed |
Kilometres per hour (km/h) - numbers in wind compasses
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| Maximum Gust |
Kilometres per hour (km/h)
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| Visibility |
Metres or Kilometres (m or km)
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| Rainfall - Past Hour |
Millimetres (mm)
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| Rainfall - Forecast |
Millimetres (mm)
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| Rainfall Rate - Weather Radar |
Millimetres per hour (mm/h)
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| Lightning Location (Cloud-to-ground) |
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| Lightning Location (Cloud-to-cloud) |
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| Lightning Location (Nowcast) |
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| Station higher than 500 metres above mean sea level |
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|---|---|
| Derived from incomplete data set | * |
| Under Maintenance / Data Temporarily Not Available |
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| Number for wind speed in kilometres per hour; arrow head for wind direction |
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| No arrow head in variable wind / wind direction data under maintenance / data temporarily not available |
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| "C" for calm wind |
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| Weather Icons (Forecast) |
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| CAPTION | Sunny | Sunny Periods | Sunny Intervals | Sunny Periods with A Few Showers | Sunny Intervals with Showers | |
| Weather Icons (Forecast) |
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| CAPTION | Cloudy |
Light Rain (0.5 mm or above) |
Moderate rain or heavier (10 mm or more) |
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| Weather Icons (Forecast) |
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| CAPTION |
Fine (use only in night-time on 1st of the Lunar Month) |
Fine (use only in night-time on 2nd to 6th of the Lunar Month) |
Fine (use only in night-time during 7th to 13th of Lunar Month) |
Fine (use only in night-time during 14th to 17th of Lunar Month) |
Fine (use only in night-time during 18th to 24th of Lunar Month) |
Fine (use only in night-time during 25th to 30th of Lunar Month) |
| Weather Icons (Forecast) |
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| CAPTION |
Mainly Fine (use only in night-time on 1st of the Lunar Month) |
Mainly Fine (use only in night-time on 2nd to 6th of the Lunar Month) |
Mainly Fine (use only in night-time during 7th to 13th of Lunar Month) |
Mainly Fine (use only in night-time during 14th to 17th of Lunar Month) |
Mainly Fine (use only in night-time during 18th to 24th of Lunar Month) |
Mainly Fine (use only in night-time during 25th to 30th of Lunar Month) |
| Weather Icons (Forecast) |
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| CAPTION |
Mainly Cloudy (use only in night-time on 1st of the Lunar Month) |
Mainly Cloudy (use only in night-time on 2nd to 6th of the Lunar Month) |
Mainly Cloudy (use only in night-time during 7th to 13th of Lunar Month) |
Mainly Cloudy (use only in night-time during 14th to 17th of Lunar Month) |
Mainly Cloudy (use only in night-time during 18th to 24th of Lunar Month) |
Mainly Cloudy (use only in night-time during 25th to 30th of Lunar Month) |
| ICON |
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| CAPTION | Half-hourly accumulated rainfall less than 2.5 mm | Half-hourly accumulated rainfall between 2.5 and 5 mm | Half-hourly accumulated rainfall more than 5 mm |
| ICON |
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| CAPTION | Lightning within 10 km in the first 30-minute period | Lightning within 15 km in the first 30-minute period | Lightning within 10 km in the second 30-minute period | Lightning within 15 km in the second 30-minute period |