5-day weather forecast London Sep 22, 2026

25°16° · Sunny

Weather forecast London Tuesday Sep 22, 2026: sunny, temperature from 16 °C to 25 °C.

Precipitation probability 14%. Wind up to 2.89 m/s (gusts 5.61 m/s). Air humidity 46–74%, atmospheric pressure 770–773 mm Hg, UV index up to 3.8.

Sunrise 06:46
Sunset 18:59
Waxing Gibbous89% illuminated
Moonrise 17:42 · Moonset 01:51
Chart
Table

Forecast from 16 °C to 25 °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)181818171717171617182021232424252525242322202019
Precipitation (mm/hr)000000000000000000000000

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 (%)000000000000000130057167385
Rain chance (%)44455677654322211122351114

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)0.810.890.890.890.890.50.310.310.110.110.110.110.190.390.310.310.390.310.3912.312.892.612.61
Wind gust (m/s)0.810.920.890.920.920.530.440.330.140.110.110.110.224.390.310.420.50.424.391.033.925.535.615.22
Wind direction (°)SSW 207°WSW 243°W 272°WNW 287°WNW 294°NW 307°WNW 296°WNW 300°SSE 155°E 91°ESE 104°NE 40°NW 308°WNW 300°WNW 283°WNW 298°WNW 302°NNW 331°NNE 18°ENE 57°ESE 102°SE 131°SE 142°SE 142°

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 (%)616264666971737472666157535048474647485256626467

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)773773773773772772772772773773773773772772771771770770770770770770770770

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 Index000000000.20.81.62.73.53.83.52.71.60.80.200000

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)10.410.512.113.213.513.513.814.916.517.316.417.7119.77.96.25.86.26.77.17.78.9913.2
PM10 (µg/m³)17.11717.61818.418.618.719.722.824.125.12621.715.813.513.51415.113.914.114.916.417.621.7
Ozone (O₃) (µg/m³)13101314139536182128385364676868645735222218.8
NO₂ (µg/m³)6049.245.239.736.935.234.334.637.734.232.833.724.217.518.217.220.126.332.234.641.954.445.943
SO₂ (µg/m³)32.32.321.922.32.944.33.72.82.2221.81.71.722.22.73.73.84.2
CO (µg/m³)236236231230231231237251291283279266233226225217212220236237238244241236.3

London 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.