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

Sunny

19°C 66°F 16°C 61°F Westerly
16km/h 10mph
Monday

Light Cloud

20°C 68°F 12°C 54°F West North Westerly
11km/h 7mph
Tuesday

Sunny Intervals

20°C 68°F 14°C 57°F Easterly
10km/h 6mph
Wednesday

Sunny Intervals

21°C 70°F 15°C 59°F East South Easterly
14km/h 9mph
Thursday

Sunny Intervals

21°C 70°F 15°C 59°F Easterly
14km/h 9mph

IN ASSOCIATION WITH

Forecast

Sunrise 06:23 Sunset 20:02

Last updated 05:05

Weather forecast details for Sunday 31 August. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 0700 hours1000 hours1300 hours1600 hours1900 hours2200 hours0100 hours
Mon
0400 hours
Weather Conditions Sunny Sunny Intervals Sunny Intervals Sunny Sunny Partly Cloudy Light Cloud Light Cloud
Temperature (°C/°F) 11°C 52°F 15°C 59°F 18°C 64°F 19°C 66°F 17°C 63°F 16°C 61°F 16°C 61°F 16°C 61°F
Wind Speed (mph/km/h) 10km/h 6mph Westerly 11km/h 7mph West North Westerly 16km/h 10mph Westerly 18km/h 11mph Westerly 18km/h 11mph Westerly 13km/h 8mph Westerly 13km/h 8mph West South Westerly 16km/h 10mph West South Westerly
Wind Direction W WNW W W W W WSW WSW
Humidity 94% 79% 62% 60% 71% 82% 90% 93%
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) G G VG VG VG VG G G
Pressure (Millibars) 1019 1020 1020 1019 1019 1020 1019 1018

Wales

Forecast Summary

  • Today

    The odd light shower here and there cannot be ruled out, but for most it is going to be a fine day with light winds and sunny spells, making it feel quite warm at times.

  • Tonight

    After a fine evening for many, a band of rain is set to spread in from the northwest overnight, bringing low cloud and hill fog.

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 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 19:08, Friday 29 Aug Forecast updated Monday to Friday only

UK

UK Forecast Last updated 22:33, Saturday 30 Aug

Observations

Observed at 04:00, Sunday 31 August

Clear Sky

13°C 55°F

14km/h 9mph West North Westerly

Humidity: 88%

Visibility: Good

Pressure: 1018mb, 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