5-day weather forecast Hong Kong Sep 15, 2026

28°26–28° · Sunny

Weather forecast Hong Kong today Sep 15, 2026: patchy rain possible, temperature from 26 °C to 28 °C.

Precipitation probability 69%. Wind up to 7.19 m/s (gusts 10.42 m/s). Air humidity 76–83%, atmospheric pressure 759–761 mm Hg, UV index up to 10.6.

Sunrise 06:10
Sunset 18:26
Waxing Crescent23% illuminated
Moonrise 09:55 · Moonset 21:04
Chart
Table
Tue, Sep 15, 2026

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)272727272726272727272828282828282828272727272727
Precipitation (mm/hr)0.021.930.860.16000.090.070.060.090.390.220.610.590.040000.040.16000.050

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 (%)617869889276537973797376747975109108910010097506
Rain chance (%)186956342320232724273930474819888243624231810

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)1.51.6133.53.815.56.116.616.696.565.114.613.813.393.393.894.6955.696.56.897.197
Wind gust (m/s)1.611.723.724.815.818.429.118.697.6176.1110.118.616.818.396.398.897.6996.317.118.039.2210.42
Wind direction (°)NW 305°NNE 23°ENE 68°ENE 76°ENE 74°ENE 76°ENE 78°E 81°ENE 78°E 81°E 82°E 84°E 84°E 88°E 101°ESE 111°ESE 111°ESE 107°E 97°E 84°E 80°ENE 75°ENE 72°ENE 75°

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 (%)828282828282838382807876767676767677798081818181

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)761760760760760760760761761761761761761761760759759759759760760761761761

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 Index00000000.21.23.46.39.110.610.28.25.52.80.90.100000

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)72.66864.752.756.963.669.680.166.143.535.23128.927.424.423.323.524.331.738.34341.139.535.2
PM10 (µg/m³)73.668.965.453.457.664.570.581.366.843.835.431.329.227.724.723.623.925.233.440.646.745.544.440.2
Ozone (O₃) (µg/m³)2221191511977184991125144155156146127104733818264970
NO₂ (µg/m³)9194969695.193.291.288.281.86952.739.631.225.925.229.438.152.278.5110127.211894.372.3
SO₂ (µg/m³)45.645.14440.937.336.140.246.85150.447.443.738.933.530.632.136.14043.546.848.146.142.137.9
CO (µg/m³)13211065851726642578539521486408314249235250270292320341353359352323280246
Tue, Sep 15, 2026

Frequently asked questions about the 5-day weather in Hong Kong

What will the weather be like in Hong Kong over the next 5 days?

Over the next 5 days in Hong Kong the temperature is expected to range from about 26 to 28 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Hong Kong?

The chance of rain in Hong Kong over the next 5 days reaches 69%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Hong Kong?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Hong Kong will be the warmest and which the coolest?

Over the next 5 days the temperature in Hong Kong ranges from about 26 to 28 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Hong Kong over the next 5 days?

Over the next 5 days the wind in Hong Kong picks up to 9 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Hong Kong is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 69%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Hong Kong?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Will I need an umbrella or sunscreen in Hong Kong this week?

Rain reaches a 69% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 10.6; sunscreen is worth it from about 3 upwards.

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.