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

Clear Sky

19°C 66°F 10°C 50°F West North Westerly
6km/h 4mph
Tuesday

Sunny Intervals

17°C 63°F 13°C 55°F West South Westerly
14km/h 9mph
Wednesday

Sunny

18°C 64°F 11°C 52°F West North Westerly
21km/h 13mph
Thursday

Light Cloud

18°C 64°F 16°C 61°F Westerly
21km/h 13mph
Friday

Light Cloud

18°C 64°F 15°C 59°F West South Westerly
21km/h 13mph

IN ASSOCIATION WITH

Forecast

Sunrise 06:58 Sunset 19:12

Last updated 19:29

Weather forecast details for Monday 22 September. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 2000 hours2100 hours2200 hours2300 hours0000 hours
Tue
0100 hours0200 hours0300 hours0400 hours0500 hours              
Weather Conditions Clear Sky Clear Sky Clear Sky Clear Sky Clear Sky Clear Sky Clear Sky Clear Sky Clear Sky Clear Sky               
Temperature (°C/°F) 16°C 61°F 15°C 59°F 15°C 59°F 14°C 57°F 14°C 57°F 13°C 55°F 12°C 54°F 12°C 54°F 12°C 54°F 11°C 52°F               
Wind Speed (mph/km/h) 11km/h 7mph West North Westerly 10km/h 6mph West North Westerly 10km/h 6mph West North Westerly 8km/h 5mph West North Westerly 6km/h 4mph West North Westerly 6km/h 4mph West North Westerly 5km/h 3mph West North Westerly 6km/h 4mph West North Westerly 6km/h 4mph West North Westerly 6km/h 4mph West North Westerly               
Wind Direction WNW WNW WNW WNW WNW WNW WNW WNW WNW WNW               
Humidity 70% 74% 76% 78% 80% 84% 85% 86% 87% 88%               
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) G G G G G G G G G G               
Pressure (Millibars) 1025 1025 1025 1025 1025 1024 1024 1024 1024 1023               

Wales

Forecast Summary

  • This Evening and Tonight

    Dry with clear spells and light winds overnight, so becoming chilly once again with a localised rural grass frost possible. Light winds and clear skies will also allow a few valley mist and fog patches to develop.

Environmental Summary

UV: 4

UK Range: 1-7

Pollen: Moderate

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 5 8 11 12 13 11 8 5 3
Average Minimum Temperature (°F) 35 35 38 41 46 51 54 55 51 46 41 37
Average Maximum Temperature (°C) 7 7 10 13 16 19 20 21 18 14 10 8
Average Maximum Temperature (°F) 45 45 50 56 61 68 69 69 64 58 51 46
Record Minimum Temperature (°C) -17 -9 -8 -3 -1 4 7 6 2 -3 -3 -7
Record Minimum Temperature (°F) 2 15 18 27 31 39 44 43 35 26 26 19
Record Maximum Temperature (°C) 15 16 20 24 29 31 31 33 28 25 18 15
Record Maximum Temperature (°F) 59 61 68 75 84 87 88 91 83 77 65 59
Average Precipitation (mm) 108 72 63 65 76 63 89 97 99 109 116 108
Average Precipitation (inches) 4.3 2.8 2.5 2.6 3.0 2.5 3.5 3.8 3.9 4.3 4.7 4.3
Average Sunlight Hours 2 3 4 5 6 7 6 6 5 3 2 2
Wet Days (+0.1 mm) 18 14 13 13 13 13 14 15 16 16 17 18
Relative Humidity AM 89 87 82 74 74 73 76 78 81 85 88 89
Relative Humidity PM <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>
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 Wales Today

BBC Wales Today Forecast Last updated 19:02, Monday 22 Sep Forecast updated Monday to Friday only

UK

UK Forecast Last updated 17:21, Monday 22 Sep

Observations

Observed at 19:00, Monday 22 September

Sunny

16°C 61°F

14km/h 9mph Westerly

Humidity: 73%

Visibility: Good

Pressure: 1025mb, Falling

Observation station: St. Athan

(Lat: 51.4 | Lon: -3.433)

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