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

Heavy Rain

12°C 54°F 12°C 54°F West South Westerly
26km/h 16mph
Monday

Heavy Rain

12°C 54°F 7°C 45°F West South Westerly
16km/h 10mph
Tuesday

Heavy Rain

8°C 46°F 3°C 37°F West North Westerly
8km/h 5mph
Wednesday

Sunny

6°C 43°F 3°C 37°F West South Westerly
27km/h 17mph
Thursday

Sunny Intervals

6°C 43°F 1°C 34°F West North Westerly
13km/h 8mph

IN ASSOCIATION WITH

Forecast

Sunrise 08:44 Sunset 15:59

Last updated 22:11

Weather forecast details for Sunday 21 December. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 2300 hours0000 hours
Mon
0100 hours0200 hours0300 hours0400 hours0500 hours                 
Weather Conditions Light Rain Light Rain Heavy Rain Heavy Rain Heavy Rain Heavy Rain Heavy Rain                  
Temperature (°C/°F) 13°C 55°F 13°C 55°F 12°C 54°F 12°C 54°F 12°C 54°F 12°C 54°F 12°C 54°F                  
Wind Speed (mph/km/h) 24km/h 15mph West South Westerly 24km/h 15mph West South Westerly 24km/h 15mph West South Westerly 24km/h 15mph West South Westerly 24km/h 15mph West South Westerly 24km/h 15mph West South Westerly 24km/h 15mph West South Westerly                  
Wind Direction WSW WSW WSW WSW WSW WSW WSW                  
Humidity 85% 84% 86% 86% 87% 87% 87%                  
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) G G M G M M M                  
Pressure (Millibars) 1008 1008 1007 1006 1006 1005 1004                  

Northern Ireland

Forecast Summary

  • This Evening and Tonight

    Remaining cloudy with outbreaks of rain, the rain turning heavier and more persistent across the northwest during the evening. The heavier, persistent rain spreads to all parts overnight. Strong westerly winds easing.

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 4 6 9 11 11 9 7 4 3
Average Minimum Temperature (°F) 35 35 37 39 43 49 52 51 49 44 39 37
Average Maximum Temperature (°C) 6 7 9 12 15 18 18 18 16 13 9 7
Average Maximum Temperature (°F) 43 44 49 53 59 64 65 65 61 55 48 44
Record Minimum Temperature (°C) -13 -12 -12 -4 -3 -1 4 1 -2 -4 -6 -11
Record Minimum Temperature (°F) 9 11 10 24 26 31 39 34 28 24 21 13
Record Maximum Temperature (°C) 13 14 19 21 26 28 29 28 26 21 16 14
Record Maximum Temperature (°F) 56 57 67 69 79 83 85 82 78 70 61 58
Average Precipitation (mm) 80 52 50 48 52 68 94 77 80 83 72 90
Average Precipitation (inches) 3.2 2.1 2.0 1.9 2.1 2.7 3.7 3.0 3.2 3.3 2.8 3.5
Average Sunlight Hours 1 2 3 5 6 6 4 4 4 3 2 1
Wet Days (+0.1 mm) 20 17 16 16 15 16 19 17 18 19 19 21
Relative Humidity AM 92 91 88 83 79 80 84 87 89 91 92 92
Relative Humidity PM 87 80 74 69 66 71 73 75 78 80 85 89
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 Newsline

BBC Newsline Forecast Last updated 15:01, Sunday 21 Dec Forecast updated Monday to Friday only

UK

UK Forecast Last updated 20:48, Sunday 21 Dec

Observations

Observed at 21:00, Sunday 21 December

Drizzle

11°C 52°F

24km/h 15mph South Westerly

Humidity: 100%

Visibility: Moderate

Pressure: 1009mb, Falling

Observation station: Aldergrove

(Lat: 54.65 | Lon: -6.217)

BBC Weather in association with the Met Office

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

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