5-day weather forecast Hong Kong Sep 18, 2026

28°26° · Sunny

Weather forecast Hong Kong Friday Sep 18, 2026: sunny, temperature from 26 °C to 28 °C.

Precipitation probability 25%. Wind up to 8.39 m/s (gusts 10.42 m/s). Air humidity 77–84%, atmospheric pressure 759–761 mm Hg, UV index up to 7.

Sunrise 06:11
Sunset 18:23
First Quarter53% illuminated
Moonrise 12:52 · Moonset 23:32
Chart
Table

Forecast from 26 °C to 28 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)262626262626262626272727272828282827272727272727
Precipitation (mm/hr)000000.010.010.010.010.020.020.0100.010.01000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)191818215972931001009974871753582045000000
Rain chance (%)1111111217202425252519219131498991010111010

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)7.117.317.57.6988.198.398.3187.617.817.397.3176.696.395.895.55.115.115.55.815.615.19
Wind gust (m/s)9.119.59.729.819.9210.1110.4210.319.929.228.818.428.22887.927.617.317.317.3388.729.339.31
Wind direction (°)ENE 78°ENE 78°ENE 76°ENE 75°ENE 70°ENE 68°ENE 66°ENE 65°ENE 62°ENE 62°ENE 63°ENE 66°ENE 72°E 79°E 85°E 88°E 91°E 91°E 87°E 82°ENE 77°ENE 75°ENE 74°ENE 73°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)828282838383838182817978777777777779818384848483

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)760760759759759759760761761761761761761761760759759759760760760761761761

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000066666766777700000

Air quality & pollen

Air quality is available for the first three days only.

Hong Kong on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.