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Merthyr Tydfil

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Merthyr Tydfil last 24 hours
  • Mon Monday
    18°C 8°C
    Sunny day
  • Tue Tuesday
    16°C 11°C
    Sunny intervals
  • Wed Wednesday
    16°C 9°C
    Sunny intervals
  • Thu Thursday
    17°C 14°C
    Cloudy
  • Fri Friday
    17°C 13°C
    Overcast
Monday
2300
Clear night
11
Feels like temperature (°C) arrow down
11
Precipitation probability arrow down
<5%
Wind direction, speed & gust (mph) arrow down
NNW 2 6
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G
Humidity arrow down
84%
UV index arrow down
0
Sunrise: 06:59 Sunset: 19:12 Moon phase: Waning crescent 3 Daily air quality index*
Tuesday
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Clear night Clear night Clear night Clear night Clear night Clear night Partly cloudy night Mist Fog Mist Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy
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11 10 9 9 8 8 8 8 9 10 12 14 14 14 14 14 13 13 13 12 12 12 12 12
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<5% <5% <5% <5% <5% <5% <5% 15% 15% 15% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% 15% 15% 15%
Wind direction, speed & gust (mph) arrow down
NE 1 5 NNW 1 5 NNW 1 5 NW 1 6 N 1 6 N 1 6 N 1 5 N 1 5 N 1 6 WSW 1 6 W 2 7 WSW 4 10 WSW 7 15 WSW 8 16 WSW 9 19 WSW 10 20 WSW 10 20 WSW 9 19 WSW 8 17 WSW 7 15 WSW 6 14 WSW 6 15 WSW 7 16 WSW 7 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G G M M P VP P G G VG VG VG VG VG VG G G G G G G
Humidity arrow down
87% 89% 90% 93% 94% 95% 96% 97% 97% 95% 90% 80% 72% 69% 70% 66% 67% 67% 73% 75% 78% 80% 83% 86%
UV index arrow down
0 0 0 0 0 0 0 0 1 2 2 3 3 4 3 2 1 1 1 1 0 0 0 0
Sunrise: 07:01 Sunset: 19:10 Moon phase: Waning crescent 3 Daily air quality index*
Wednesday
0000 0100 0400 0700 1000 1300 1600 1900 2200
Heavy rain Light rain Cloudy Cloudy Sunny intervals Sunny intervals Sunny day Sunny day Partly cloudy night
13 13 12 11 13 16 16 13 11
Feels like temperature (°C) arrow down
12 12 11 10 12 14 13 11 10
Precipitation probability arrow down
80% 80% 15% <5% <5% <5% <5% <5% <5%
Wind direction, speed & gust (mph) arrow down
WSW 7 16 WSW 8 17 W 8 17 WNW 7 15 WNW 11 22 NW 12 25 NW 12 26 NW 9 18 WNW 4 8
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M G G G G VG VG VG G
Humidity arrow down
90% 93% 93% 93% 88% 75% 66% 72% 85%
UV index arrow down
0 0 0 0 2 4 1 1 0
Sunrise: 07:02 Sunset: 19:08 Moon phase: New 3 Daily air quality index*
Thursday
0100 0400 0700 1000 1300 1600 1900 2200
Partly cloudy night Cloudy Mist Sunny intervals Cloudy Cloudy Cloudy Overcast
10 10 10 14 16 16 15 15
Feels like temperature (°C) arrow down
9 9 9 12 14 14 14 13
Precipitation probability arrow down
<5% <5% 15% <5% <5% 10% 10% 15%
Wind direction, speed & gust (mph) arrow down
WNW 4 7 WNW 4 7 WNW 4 7 W 9 17 W 11 23 WSW 11 22 WSW 9 18 WSW 8 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G M P G G G G G
Humidity arrow down
93% 95% 94% 84% 79% 85% 89% 92%
UV index arrow down
0 0 0 2 2 1 0 0
Sunrise: 07:04 Sunset: 19:05 Moon phase: New 3 Daily air quality index*
Friday
0100 0400 0700 1000 1300 1600 1900 2200
Overcast Overcast Cloudy Cloudy Overcast Overcast Cloudy Cloudy
15 15 15 16 16 16 16 14
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14 13 13 14 15 15 15 14
Precipitation probability arrow down
20% 20% 20% 15% 50% 20% 15% 10%
Wind direction, speed & gust (mph) arrow down
WSW 8 16 WSW 9 16 WSW 9 17 WSW 10 19 WSW 10 19 WSW 9 16 W 5 9 WNW 3 5
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M M G M G G M
Humidity arrow down
93% 93% 93% 91% 92% 92% 93% 96%
UV index arrow down
0 0 0 1 2 1 0 0
Sunrise: 07:06 Sunset: 19:03 Moon phase: New 3 Daily air quality index*
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More Detail chevron down

Issued at: 2200 on Mon 22 Sep 2014

* Daily index representing the background and regional air quality for a chosen location. Air pollution levels close to roads in urban areas may be higher. For more information please visit our Daily Air Quality Index page.

Forecast Summary

  • Regional
  • UK 5 days
  • UK 6-30 days

Regional forecast for Wales

A cold start, then another generally dry and fine day.

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. Minimum Temperature 3C.

Tuesday:

A largely dry and fine morning, but cloud will tend to thicken from the north, with some outbreaks of rain spreading into northern and some western parts through the afternoon. Maximum Temperature 18C.

Outlook for Wednesday to Friday:

Cloud and rain clearing on Wednesday afternoon with the odd shower following. Largely cloudy on Thursday and Friday with a little drizzle possible, especially over hills. Quite breezy at times.

Issued at: 1700 on Mon 22 Sep 2014

UK forecast for the next 5 days

Dry and fine for most, with rain continuing in northwest.

This Evening and Tonight:

Cloud and rain, in the northwest, will continue edging southeastwards overnight, possibly reaching northern parts of northern England by dawn. Elsewhere will be dry, clear and cold with a rural grass frost and a few mist and fog patches likely.

Tuesday:

The cloud and occasional rain will continue southwards, across the rest of northern England and north Wales by evening. Largely dry and fine elsewhere, though further rain in northwest later.

Outlook for Wednesday to Friday:

Rain clearing southwards Wednesday with the odd shower following. Largely cloudy on Thursday and Friday, windy with outbreaks of rain or drizzle in northwestern areas, drier with some brightness elsewhere.

Issued at: 1700 on Mon 22 Sep 2014

Outlook for the UK over the next 6-30 days

UK Outlook for Saturday 27 Sep 2014 to Monday 6 Oct 2014:

Fairly cloudy at first, though some sunny intervals developing for central, southern and eastern parts of the UK. Outbreaks of rain are expected for northern and western areas, more persistent for parts of Scotland and Northern Ireland, although clearer, showery weather should follow for a time. It will be quite windy here too. Temperatures generally near or a little above normal. Into the following week, the north and west are likely to remain the windiest and most unsettled parts of the UK, with the best of the weather further south and east. However, a little rain is to be expected here at times. Temperatures should be a little above normal for most. This general northwest-southeast split in the weather is then likely to continue into the start of October.

UK Outlook for Tuesday 7 Oct 2014 to Tuesday 21 Oct 2014:

The broadly northwest-southeast split in weather conditions expected to become established for late September and early October is then showing signs of persisting into mid-October. This pattern would leave southern, central and eastern parts tending to see the best of the weather with conditions often fine and dry. Occasional bouts of rain should still be expected, and mist and fog patches may be a problem during morning rush hours but under fine weather it should feel pleasant. Further northwest, conditions are likely to be more unsettled with more frequent outbreaks of rain, perhaps accompanied by strong winds, temperatures here then often closer to average or perhaps even just below at times.

Issued at: 1700 on Mon 22 Sep 2014

Weather Map

Mon 2300

View weather map for Merthyr Tydfil

Merthyr Tydfil Clear night 51.7483 -3.3804
Swansea Clear night 51.621 -3.9424
Hereford Clear night 52.056 -2.7146
Newtown (Powys) Clear night 52.5118 -3.3118
Barnstaple Clear night 51.0777 -4.0571
Aberystwyth Partly cloudy night 52.415 -4.0817
Yeovil Clear night 50.9416 -2.632
Pembroke Clear night 51.6731 -4.9084
Swindon Clear night 51.5556 -1.7784
Exeter Clear night 50.7179 -3.5327
Birmingham Partly cloudy night 52.4859 -1.889
Banbury Clear night 52.0625 -1.3383
Wrexham Clear night 53.0428 -2.9911
Stoke-on-Trent Partly cloudy night 53.0024 -2.178
Plymouth Clear night 50.3713 -4.1348
Southampton Clear night 50.9093 -1.403
Caernarfon Clear night 53.1393 -4.2727
Reading Clear night 51.4523 -0.9724
Milton Keynes Clear night 52.0382 -0.7555
Nottingham Clear night 52.9545 -1.1565

Location Details

Merthyr Tydfil

Location: 51.7483, -3.3804

Altitude: 175m above mean sea level

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