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

Sunny Intervals

9°C 48°F 6°C 43°F West North Westerly
26km/h 16mph
Sunday

Light Rain

10°C 50°F 9°C 48°F West South Westerly
27km/h 17mph
Monday

Light Rain

10°C 50°F 9°C 48°F West South Westerly
32km/h 20mph
Tuesday

Heavy Rain

10°C 50°F 6°C 43°F West South Westerly
29km/h 18mph
Wednesday

Light Cloud

9°C 48°F 4°C 39°F West North Westerly
19km/h 12mph

IN ASSOCIATION WITH

Forecast

Sunrise 08:15 Sunset 16:06

Last updated 07:12

Weather forecast details for Saturday 20 December. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 0900 hours1200 hours1500 hours1800 hours2100 hours0000 hours
Sun
0300 hours 
Weather Conditions Sunny Intervals Sunny Intervals Sunny Intervals Partly Cloudy Light Cloud Thick Cloud Light Cloud  
Temperature (°C/°F) 7°C 45°F 9°C 48°F 8°C 46°F 7°C 45°F 7°C 45°F 8°C 46°F 8°C 46°F  
Wind Speed (mph/km/h) 26km/h 16mph West North Westerly 26km/h 16mph West North Westerly 21km/h 13mph West North Westerly 14km/h 9mph West North Westerly 13km/h 8mph Westerly 18km/h 11mph Westerly 24km/h 15mph West South Westerly  
Wind Direction WNW WNW WNW WNW W W WSW  
Humidity 79% 75% 76% 85% 90% 89% 86%  
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) VG G VG VG G G VG  
Pressure (Millibars) 1028 1028 1030 1031 1032 1032 1030  

Wales

Forecast Summary

  • Today

    Dry with long sunny spells for most. Showers continuing in the north and west, although these should mostly die out by the afternoon, but perhaps the odd one continuing along the coast. Feeling cold in brisk northwesterly winds.

  • Tonight

    Cold and dry to start, with some early clear spells to the east. However, becoming milder with cloud spreading across the country and patchy light rain moving into the west.

Environmental Summary

UV: 1

UK Range: 1-7

Pollution: 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 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 19:06, Friday 19 Dec Forecast updated Monday to Friday only

UK

UK Forecast Last updated 06:58, Saturday 20 Dec

Observations

Observed at 06:00, Saturday 20 December

Light Cloud

9°C 48°F

35km/h 22mph West North Westerly

Humidity: 72%

Visibility: Very Good

Pressure: 1026mb, Rising

Observation station: St. Athan

(Lat: 51.4 | Lon: -3.433)

BBC Weather in association with the Met Office

All times are GMT (Europe/London, GMT+0000) unless otherwise stated

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