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

Light Rain Shower

15°C 59°F 12°C 54°F West South Westerly
34km/h 21mph
Tuesday

Light Rain Shower

14°C 57°F 9°C 48°F West North Westerly
39km/h 24mph
Wednesday

Light Cloud

14°C 57°F 12°C 54°F Westerly
24km/h 15mph
Thursday

Thick Cloud

15°C 59°F 14°C 57°F South Westerly
23km/h 14mph
Friday

Heavy Rain

16°C 61°F 11°C 52°F South Westerly
21km/h 13mph

IN ASSOCIATION WITH

Forecast

Sunrise 07:45 Sunset 18:10

Last updated 14:13

Weather forecast details for Monday 20 October. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 1500 hours1600 hours1700 hours1800 hours1900 hours2000 hours2100 hours2200 hours2300 hours0000 hours
Tue
0100 hours0200 hours0300 hours0400 hours0500 hours         
Weather Conditions Sunny Intervals Light Cloud Light Rain Shower Light Rain Light Rain Light Cloud Light Rain Shower Light Rain Shower Light Cloud Light Rain Light Rain Heavy Rain Shower Heavy Rain Heavy Rain Heavy Rain          
Temperature (°C/°F) 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 14°C 57°F 13°C 55°F 13°C 55°F 13°C 55°F 14°C 57°F 14°C 57°F          
Wind Speed (mph/km/h) 24km/h 15mph Westerly 19km/h 12mph West South Westerly 19km/h 12mph West South Westerly 16km/h 10mph West South Westerly 19km/h 12mph West South Westerly 18km/h 11mph West South Westerly 19km/h 12mph South Westerly 19km/h 12mph South Westerly 19km/h 12mph South Westerly 23km/h 14mph South Westerly 23km/h 14mph South Westerly 24km/h 15mph South Westerly 29km/h 18mph South Westerly 34km/h 21mph South Westerly 39km/h 24mph West South Westerly          
Wind Direction W WSW WSW WSW WSW WSW SW SW SW SW SW SW SW SW WSW          
Humidity 80% 81% 79% 85% 85% 86% 85% 87% 85% 84% 86% 84% 87% 88% 88%          
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) G G G G G G G G VG VG VG G M M M          
Pressure (Millibars) 1015 1015 1014 1014 1014 1013 1012 1012 1011 1010 1009 1007 1005 1003 1003          

Wales

Forecast Summary

  • Today

    There will often be large amounts of cloud today, but could also be sunny spells at times and some showers will move eastwards across the country. It will be breezy and less warm than yesterday as well.

  • Tonight

    Winds will strengthen through the evening, and gales will develop across the coasts and hills. Outbreaks of locally heavy rain will also move southeastwards overnight and clear northwestern parts later.

Environmental Summary

UV: 2

UK Range: 1-7

Pollution: Low

UK Range: Low to Very High

Pollen: Low

UK Range: Low to Very High

Met Office Warnings Issued For: Cardiff

  1. Yellow warning of wind

    From:
    0010 on Tue 21 October
    To:
    1800 on Tue 21 October
    Updated 20 October at 09:58

    Warning

    Gales, and more locally severe gales, are expected to affect much of the country on Tuesday. Whilst Monday night will see wet and windy conditions sweeping eastwards, the strongest winds are expected to occur after the rain clears and winds veer northwesterly through Tuesday morning. Gusts exceeding 55 mph are likely inland, with 60 to 70 mph gusts in some exposed coastal areas in the west and possibly to around 80 mph around coasts in northern Scotland.

    The public should be aware of the potential for disruption to travel and possible damage to trees. Difficult driving conditions will result, perhaps exacerbated by surface water and spray in places. This is an update of the warning first issued on Saturday, including adjustments to the areas at risk, and a slight increase to expected windspeeds, taking into account the latest information.

A list of all UK Warnings can be found on our More UK Weather page.

Weather Warnings Key

  • Red: Take action
  • Amber: Be prepared
  • Yellow: Be aware

Issued by the Met Office

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 13:53, Monday 20 Oct Forecast updated Monday to Friday only

UK

UK Forecast Last updated 12:39, Monday 20 Oct

Observations

Observed at 13:00, Monday 20 October

Thick Cloud

14°C 57°F

24km/h 15mph Westerly

Humidity: 85%

Visibility: Very Good

Pressure: 1016mb, 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