Prévisions météo à 5 jours London 13-08-2026

Prévisions météo London demain 13.08.2026 : ensoleillé, température de 20 °C à 38 °C.

Probabilité de précipitations 4%. Vent jusqu'à 3.81 m/s (rafales 4.72 m/s). Humidité de l'air 14–61%, pression atmosphérique 762–767 mm Hg, indice UV jusqu'à 6.2.

Alertes météo

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Severe13 août, 09:0013 août, 23:59Traduire avec Google
Very high temperatures may lead to impacts on Thursday.

Amber extreme_heat warning

Following a warm night, a spell of very hot weather will affect England on Thursday. The highest temperatures will be in parts of the east, southeast and the Midlands, where 37 or even 38 Celsius could be reached. This may lead to impacts on transport, infrastructure and health. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Keep yourself safe by following these simple steps to reduce the likelihood of the heat making you feel unwell; drink plenty of fluids, keep out of the sun and avoid any exercise between 11am-3pm when the sun is strongest and close curtains in rooms that face the sun. If you are going out take water with you, stay in the shade, wear sunscreen and a wide brimmed hat. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. If using public transport, there are many simple things you can do to keep yourself safe; carry water with you, take a small hand-held battery powered fan, if you feel unwell get off at next stop for some fresh air, dress in light fabrics in light colours to help stay cooler, keep an eye on fellow passengers for signs they may be struggling. Help to protect vulnerable people that you know including older people, those with underlying conditions and those who live alone; they may need support to keep cool and stay hydrated. If you are worried about your health, or that of somebody you know, ring NHS 111. Keep yourself safe whilst enjoying the water in this weather by following these simple steps: enter the water gradually, avoiding jumping or diving straight in, to reduce your risk of cold water shock, go to a lifeguarded beach or a supervised swimming area, and, if you, or anyone else, get into difficulty in the water, float on your back. People cope better with power cuts when they have prepared for them in advance. It's easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. Stay up to date with the weather forecast for your area and follow any advice from emergency services and local authorities.
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Tableau

Prévisions de 20 °C à 38 °C et précipitations

Température & Précipitations
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Température (°C)222221212020202123262931343637373837363532302827
Précipitations (mm/h)000000000000000000000000

Couverture nuageuse et probabilité de précipitations

Couverture nuageuse & Risque de pluie
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Couverture nuageuse (%)003300123712171615111012131180017
Risque de pluie (%)222333432111111111110011

Vitesse et direction du vent

Vent & Rafale de vent
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Vent (m/s)2.692.52.191.811.811.811.691.51.391.391.51.811.892.192.813.112.813.613.813.193.112.612.192.11
Rafale de vent (m/s)4.694.534.193.723.783.783.583.112.171.721.722.082.192.533.223.583.224.144.724.314.584.083.53.39
Direction du vent (°)ENE 76°ENE 73°ENE 71°ENE 65°ENE 64°E 79°ENE 78°E 83°E 92°E 87°E 81°E 79°E 84°ENE 76°ENE 78°ESE 105°SSE 151°S 178°S 188°SSO 204°SSO 209°SSO 212°SSO 206°SSO 210°

Humidité de l'air

Humidité
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidité (%)485053565759615748372923181514141515151721273033

Pression atmosphérique

Pression
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pression (mm Hg)767767766766766765765765765765765764764764763763762762762762762762763762

Indice ultraviolet

Indice UV
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Indice UV00000000.30.91.93.34.75.86.25.84.83.31.90.90.30000

Qualité de l'air et pollen

Qualité de l'air
Heure00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)101114.314.314.715.71921.921.215.611.810.58.77.87.87.98.68.57.97.87.67.57.78.1
PM10 (µg/m³)18.718.62121.621.923.226.930.626.825.521.416.313.711.91211.811.812.212.61211.312.212.513.2
Ozone (O₃) (µg/m³)5957555349433936435160831171261361401401391381291161019388
NO₂ (µg/m³)42.543.635.232.630.3293238.241.237.638.123.717.313.511.210.510.311.415.718.318.523.823.628.9
SO₂ (µg/m³)2.82.62.52.52.52.42.533.63.83.93.42.92.21.91.61.41.31.31.31.31.92.22.3
CO (µg/m³)200201198190185184187196234241243223207191182174174176178177171175178185

London sur la carte

Sources de données et méthodologie

Nos prévisions météo sont alimentées par un fournisseur professionnel de données météorologiques qui agrège les données des services météorologiques nationaux, des observations satellites, des réseaux radar et de plus de 80 000 stations météorologiques dans le monde. Les données de prévision sont mises à jour plusieurs fois par jour. Nous convertissons les données brutes en résumés clairs — vitesse du vent en m/s, pression en mm Hg — afin que vous puissiez planifier votre journée en toute confiance.