5-day weather forecast Beijing Sep 18, 2026

28°20° · Smoky haze

Weather forecast Beijing Friday Sep 18, 2026: smoky haze, temperature from 20 °C to 28 °C.

Precipitation probability 70%. Wind up to 3.5 m/s (gusts 6.92 m/s). Air humidity 48–88%, atmospheric pressure 763–766 mm Hg, UV index up to 3.4.

Sunrise 05:58
Sunset 18:18
First Quarter53% illuminated
Moonrise 13:40 · Moonset 22:25
Chart
Table

Forecast from 20 °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)222121212020202122232426262526272828232321202020
Precipitation (mm/hr)00000000000.010.280.010.870.020.0200.140.230.141.791.230.290

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 (%)5055576821765084100100100937437975868978825
Rain chance (%)6810101020219510153114531410217282670654412

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)2.11221.611.1910.891.51.6922.312.191.690.690.311.111.8133.50.811.691.611.111
Wind gust (m/s)5.314.534.4243.222.311.812.723.813.613.813.813.611.691.721.832.533.116.921.3932.531.421.39
Wind direction (°)SE 136°ESE 108°E 82°ENE 78°ENE 58°NNE 32°NNE 17°NE 42°NE 49°E 85°E 93°ESE 108°ESE 122°NE 38°NNW 338°WNW 303°NW 304°ENE 67°E 97°ENE 73°NE 36°NNE 17°N 6°E 85°

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 (%)707781838282817667716861576458534851717180848886

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)764764764764764764764765765765765765764764764764763764764764765765766766

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 Index00000000.20.71.62.73.42.622.12.11.20.4000000

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)100.199.497.686.477.371.769.473.877.866.855.648.744.840.437.13634.73844.556.963.1596166.8
PM10 (µg/m³)112.2110.1107.194.183.877.574.779.483.673.862.956.753.349.447.146.945.14851.862.968.764.366.472.6
Ozone (O₃) (µg/m³)000000016163046679110811611710776332000
NO₂ (µg/m³)113.2106.5100.797.895.792.787.481.275.772.469.865.757.547.841.7404250.973.2102.4122.1123.7115.9108.2
SO₂ (µg/m³)14.714.413.913.312.612.212.312.813.314.11515.314.412.811.510.910.710.610.710.810.910.710.410
CO (µg/m³)9088718578839319891079117912131133987841706572476439440453468496542620715790

Beijing 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.