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Day Weather Maximum Day Temperature Minimum Night Temperature Wind Direction and Speed
Thursday

Light Cloud

20°C 68°F 13°C 55°F South Westerly
16km/h 10mph
Friday

Sunny Intervals

21°C 70°F 11°C 52°F West North Westerly
18km/h 11mph
Saturday

Sunny Intervals

19°C 66°F 11°C 52°F West North Westerly
16km/h 10mph
Sunday

Light Cloud

21°C 70°F 13°C 55°F West South Westerly
10km/h 6mph
Monday

Heavy Rain Shower

21°C 70°F 14°C 57°F South Westerly
16km/h 10mph

IN ASSOCIATION WITH

Forecast

Sunrise 05:55 Sunset 20:12

Last updated 20:28

Weather forecast details for Thursday 21 August. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 2200 hours0100 hours
Fri
0400 hours     
Weather Conditions Light Cloud Light Rain Light Rain      
Temperature (°C/°F) 14°C 57°F 14°C 57°F 13°C 55°F      
Wind Speed (mph/km/h) 14km/h 9mph South Westerly 14km/h 9mph South Westerly 13km/h 8mph South Westerly      
Wind Direction SW SW SW      
Humidity 63% 67% 74%      
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) G G G      
Pressure (Millibars) 1013 1011 1010      

London and South East England

Forecast Summary

  • This Evening and Tonight

    Becoming mostly cloudy this evening with occasional showery rain arriving from the west. Some of this rain may be heavy, especially in the far southeast around dawn, by which time it should become somewhat drier further northwest.

Environmental Summary

UV: 5

UK Range: 1-7

Pollution: Low

UK Range: Low to Very High

Pollen: Low

UK Range: Low to Very High

Average Conditions

BBC Weather's average conditions for London, United Kingdom. This includes readings of average sunlight, temperature, discomfort from heat and humidity, relative humidity, average Precipitation, and wet days.
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average Minimum Temperature (°C) 2 2 3 6 8 12 14 13 11 8 5 4
Average Minimum Temperature (°F) 36 36 38 42 47 53 56 56 52 46 42 38
Average Maximum Temperature (°C) 6 7 10 13 17 20 22 21 19 14 10 7
Average Maximum Temperature (°F) 43 44 50 56 62 69 71 71 65 58 50 45
Record Minimum Temperature (°C) -10 -9 -8 -2 -1 5 7 6 3 -4 -5 -7
Record Minimum Temperature (°F) 15 15 18 28 30 41 45 43 37 26 23 19
Record Maximum Temperature (°C) 14 16 21 26 30 33 34 33 30 26 19 15
Record Maximum Temperature (°F) 58 61 71 78 86 91 93 92 86 78 66 59
Average Precipitation (mm) 54 40 37 37 46 45 57 59 49 57 64 48
Average Precipitation (inches) 2.1 1.6 1.5 1.5 1.8 1.8 2.2 2.3 1.9 2.2 2.5 1.9
Average Sunlight Hours 1 2 4 5 6 7 6 6 5 3 2 1
Wet Days (+0.1 mm) 15 13 11 12 12 11 12 11 13 13 15 15
Relative Humidity AM 86 85 81 71 70 70 71 76 80 85 85 87
Relative Humidity PM 77 72 64 56 57 58 59 62 65 70 78 81
Discomfort From Heat And Humidity <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span>

Average Conditions data © Copyright RM, 2011. All rights reserved. Helicon Publishing is a division of RM.

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Forecast Video

BBC London

BBC London Forecast Last updated 19:21, Thursday 21 Aug Forecast updated Monday to Friday only

UK

UK Forecast Last updated 17:37, Thursday 21 Aug

Observations

Observed at 20:00, Thursday 21 August

Light Cloud

15°C 59°F

21km/h 13mph South South Westerly

Humidity: 63%

Visibility: Very Good

Pressure: 1013mb, Falling

Observation station: London

(Lat: 51.517 | Lon: -0.1)

BBC Weather in association with the Met Office

All times are BST (Europe/London, GMT+0100) unless otherwise stated

Information given for most appropriate forecast location. See FAQs for details