5-day weather forecast London 12-08-2026

Weather forecast London Wednesday, August 12 12.08.2026: sunny, temperature from 18 °C to 32 °C.

Precipitation probability 6%. Wind up to 5 m/s (gusts 6.69 m/s). Air humidity 19–72%, atmospheric pressure 765–767 mm Hg, UV index up to 6.2.

Sunrise 05:41
Sunset 20:29
New Moon0% illuminated
Moonrise 04:31 · Moonset 20:24
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Table

Forecast from 18 °C to 32 °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)191919191818181921232628303231313231302926242524
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 (%)2200000410121211131912121813988101211
Rain chance (%)666555431111111111111111

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)43.893.693.3932.8932.6932.892.612.6933.394.114.394.614.8154.894.113.814.113.19
Wind gust (m/s)5.835.865.675.475.035.035.334.223.863.4433.113.443.924.725.065.285.535.756.175.615.726.695.28
Wind direction (°)E 82°E 83°E 89°E 93°E 89°E 87°E 90°E 95°ESE 107°ESE 111°ESE 109°ESE 104°E 99°E 95°E 87°E 83°E 94°E 101°E 100°E 94°E 83°E 82°E 81°E 88°

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 (%)717271686666645643322623201919202021232631364042

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)767767767767767767767767767767767767767766767767766766765766766767766766

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 Index00000000.30.91.93.34.75.86.25.84.83.31.90.90.30000

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)6.36.16.67.37.37.47.98.78.876.56.26.67.17.37.27.16.87.27.98.48.98.810.9
PM10 (µg/m³)13.815.713.914.615.215.816.516.315.313.814.313.413.712.210.710.112.11313.214.815.61617.519.6
Ozone (O₃) (µg/m³)686662575554504746546172818910511712312311510495887667.8
NO₂ (µg/m³)18.318.616.115.11618.119.625.720.418.817.113.212.211.210.39.49.410.214.3192124.827.532.3
SO₂ (µg/m³)1.31.31.31.41.41.41.51.82.22.22.42.72.82.72.41.81.61.61.822.22.32.43
CO (µg/m³)145146140143146147149162176183185188189187174173172167180187182179177173.5

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.