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Porthmadog

YELLOW Warnings in force for Gwynedd
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Porthmadog last 24 hours
  • 21 °C

    16 °C

    Sunny intervals
  • 19 °C

    12 °C

    Cloudy
  • 18 °C

    15 °C

    Sunny intervals
  • 18 °C

    16 °C

    Cloudy
  • 17 °C

    13 °C

    Cloudy
  • 18 °C

    14 °C

    Cloudy
  • 17 °C

    13 °C

    Cloudy
Saturday   (27 August 2016)
1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
Temperature (°C)
20 ° 20 ° 21 ° 21 ° 21 ° 21 ° 20 ° 19 ° 19 ° 18 ° 18 ° 18 °
Warnings for Gwynedd
No warnings for Saturday
Feels like temperature (°C) arrow down
19 ° 19 ° 20 ° 20 ° 20 ° 20 ° 19 ° 19 ° 18 ° 18 ° 17 ° 17 °
Precipitation probability arrow down
<5% <5% <5% <5% <5% <5% <5% 10% 10% 10% 10% 20%
Wind direction, speed & gust (mph) arrow down
ESE 7 8 E 9 12 ESE 6 10 SE 5 9 ESE 7 11 ESE 8 14 E 8 14 ENE 8 12 ENE 8 13 ENE 9 14 ENE 9 15 ENE 9 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG VG VG VG VG VG G VG G VG VG
Humidity arrow down
60% 56% 55% 58% 59% 67% 73% 77% 81% 83% 85% 86%
UV index arrow down
4 5 4 3 3 2 1 1 1 0 0 0
Sunday   (28 August 2016)
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Cloudy Overcast Overcast Cloudy Overcast Overcast Cloudy Overcast Cloudy Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Cloudy Partly cloudy night Partly cloudy night
Temperature (°C)
17 ° 17 ° 17 ° 17 ° 17 ° 16 ° 16 ° 16 ° 16 ° 17 ° 17 ° 18 ° 18 ° 18 ° 19 ° 19 ° 19 ° 18 ° 18 ° 17 ° 16 ° 15 ° 14 ° 14 °
Warnings for Gwynedd
Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Feels like temperature (°C) arrow down
17 ° 17 ° 17 ° 16 ° 15 ° 15 ° 16 ° 16 ° 17 ° 17 ° 17 ° 17 ° 17 ° 17 ° 18 ° 18 ° 17 ° 17 ° 17 ° 16 ° 15 ° 14 ° 14 ° 13 °
Precipitation probability arrow down
20% 30% 20% 20% 20% 20% 20% 20% 10% 10% 10% 10% 10% 20% 10% 10% 10% 10% <5% <5% <5% <5% <5% <5%
Wind direction, speed & gust (mph) arrow down
ENE 9 14 ENE 6 9 SE 7 12 S 9 15 SSW 10 16 SW 9 14 SW 6 10 WSW 4 8 W 4 7 W 4 7 W 5 8 W 6 11 W 7 13 WNW 8 14 NNW 10 19 NNW 10 20 NNW 11 22 NNW 11 20 NNW 9 17 NNW 8 14 NNW 7 12 NNW 6 9 NW 4 7 NNW 5 7
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G VG VG G G G G G G VG VG VG VG VG VG E VG VG VG VG VG VG VG VG
Humidity arrow down
88% 89% 90% 92% 94% 93% 94% 95% 93% 90% 88% 86% 85% 85% 80% 76% 75% 77% 77% 78% 84% 89% 92% 92%
UV index arrow down
0 0 0 0 0 0 0 1 1 2 2 3 3 4 3 3 3 2 1 1 1 0 0 0
Monday   (29 August 2016)
0000 0100 0400 0700 1000 1300 1600 1900 2200
Clear night Clear night Partly cloudy night Sunny intervals Cloudy Sunny day Sunny day Cloudy Overcast
Temperature (°C)
13 ° 13 ° 12 ° 13 ° 16 ° 17 ° 17 ° 16 ° 16 °
Warnings for Gwynedd
No warnings for Monday
Feels like temperature (°C) arrow down
13 ° 12 ° 12 ° 13 ° 16 ° 16 ° 16 ° 15 ° 15 °
Precipitation probability arrow down
<5% <5% <5% <5% 10% <5% <5% 10% 10%
Wind direction, speed & gust (mph) arrow down
NW 4 6 NNW 4 6 N 3 4 NNE 2 4 WSW 5 11 WSW 8 17 SW 9 21 SW 10 19 SSW 10 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG G G VG VG VG VG G
Humidity arrow down
92% 93% 95% 94% 80% 74% 74% 83% 95%
UV index arrow down
0 0 0 1 3 5 3 1 0
Tuesday   (30 August 2016)
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Overcast Cloudy Overcast Cloudy Cloudy Cloudy Cloudy
Temperature (°C)
16 ° 16 ° 16 ° 16 ° 17 ° 18 ° 17 ° 16 °
Warnings for Gwynedd
No warnings for Tuesday
Feels like temperature (°C) arrow down
15 ° 15 ° 14 ° 14 ° 15 ° 15 ° 15 ° 14 °
Precipitation probability arrow down
10% 20% 10% 20% 10% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
SW 10 17 SSW 10 17 SW 12 20 SW 13 24 SSW 13 26 SSW 13 26 SSW 12 22 SSW 14 25
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G VG VG VG VG VG
Humidity arrow down
96% 97% 92% 86% 80% 79% 85% 86%
UV index arrow down
0 0 1 2 4 2 1 0
Wednesday   (31 August 2016)
0100 0400 0700 1000 1300 1600 1900 2200
Overcast Cloudy Light rain Light rain Overcast Cloudy Cloudy Cloudy
Temperature (°C)
16 ° 16 ° 16 ° 16 ° 17 ° 17 ° 16 ° 16 °
Warnings for Gwynedd
No warnings for Wednesday
Feels like temperature (°C) arrow down
14 ° 14 ° 13 ° 14 ° 15 ° 16 ° 15 ° 15 °
Precipitation probability arrow down
10% 10% 60% 60% 50% 20% 10% 10%
Wind direction, speed & gust (mph) arrow down
SSW 14 26 SSW 16 28 SSW 16 29 SSW 16 30 SW 15 29 SW 11 22 SSW 9 15 SW 8 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG G M G G G VG VG
Humidity arrow down
88% 90% 92% 92% 91% 86% 84% 92%
UV index arrow down
0 0 1 1 2 2 1 0
Thursday   (01 September 2016)
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy Cloudy
Temperature (°C)
15 ° 14 ° 14 ° 16 ° 17 ° 17 ° 17 ° 16 °
Warnings for Gwynedd
No warnings for Thursday
Feels like temperature (°C) arrow down
14 ° 14 ° 13 ° 15 ° 16 ° 16 ° 15 ° 14 °
Precipitation probability arrow down
10% 10% 10% 10% 10% 10% 10% 10%
Wind direction, speed & gust (mph) arrow down
SW 8 13 WSW 6 9 WSW 6 10 WSW 8 15 SW 9 19 WSW 10 20 SW 10 17 SW 12 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G VG VG VG G
Humidity arrow down
94% 94% 94% 84% 79% 76% 81% 89%
UV index arrow down
0 0 1 2 4 2 1 0
Friday   (02 September 2016)
0100 0400 0700 1000 1300 1600 1900 2200
Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
Temperature (°C)
16 ° 15 ° 15 ° 16 ° 17 ° 17 ° 16 ° 15 °
Warnings for Gwynedd
No warnings for Friday
Feels like temperature (°C) arrow down
14 ° 13 ° 13 ° 14 ° 14 ° 15 ° 14 ° 13 °
Precipitation probability arrow down
10% 20% 10% 10% 20% 20% 10% 10%
Wind direction, speed & gust (mph) arrow down
SSW 13 22 SSW 13 23 SW 12 21 SSW 13 24 SW 14 27 WSW 13 24 W 10 18 W 9 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G G G G VG
Humidity arrow down
91% 92% 92% 85% 80% 80% 83% 86%
UV index arrow down
0 0 1 2 3 2 1 0
More Detail chevron down

Issued at: 1100 on Sat 27 Aug 2016

Forecast summary

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

Regional forecast for Wales

Largely dry, although cloud increasing through the day.

Today:

A fine start to the weekend with some sunshine, although this will slowly turn hazy during the day as cloud builds. The odd shower is possible further east later in the afternoon. Feeling warm in the sunshine and light winds. Maximum Temperature 23 °C.

Tonight:

Showery rain will become widespread by evening, especially across central and northern areas, with some heavy bursts in places. These will move away northwards but further showers may develop later. Minimum Temperature 14 °C.

Sunday:

Sunday will then start largely cloudy with a scattering of showers. Into the afternoon some of these may become heavy, especially further south, but there will also be some sunshine. Maximum Temperature 20 °C.

Outlook for Monday to Wednesday:

Dry on Monday with sunny spells. Cloudier on Tuesday but remaining largely dry, aside for some drizzle over higher ground. Wednesday looks breezier with some rain, although perhaps brighter later.

Updated at: 0413 on Sat 27 Aug 2016

UK forecast for the next 5 days

Heavy rain for some, otherwise dry with sunny breaks.

Today:

Outbreaks of rain, often heavy, will move across southern and central parts of England through the day, reaching Wales later. Otherwise it will remain generally dry with warm spells of sunshine, although Scotland may see the odd shower at times.

Tonight:

Rain spreading into northern parts of Wales and England will become heavy in places whilst showers persist across northern Scotland. Another muggy night in the south with some showers.

Sunday:

After a cloudy and wet start for some, rain will gradually ease to leave a mixture of sunny spells and showers for most, these heaviest in central and southern England.

Outlook for Monday to Wednesday:

An improvement on Monday as showers fade, leaving sunny breaks. Mainly dry on Tuesday before rain spreads into the north and west on Wednesday, but staying fine and dry elsewhere.

Updated at: 0347 on Sat 27 Aug 2016

Outlook for the UK over the next 6-30 days

UK Outlook for Thursday 1 Sep 2016 to Saturday 10 Sep 2016:

Thursday is likely to be dry for many, apart from a few showers in the northwest, and a band of patchy rain across parts of Wales and central England. This weakening band of rain will gradually move southeastwards on Friday, but at the same time another band of rain will move in from the northwest, which will be accompanied by some strong winds. Thereafter the changeable pattern is likely to continue, with showers or longer spells of rain, interspersed by some drier and brighter periods. The wettest and windiest weather is likely across the northwest, although there is a low risk of thundery showers occasionally affecting the south. Temperatures, generally near or a little above normal, although there is the chance of some warmer spells, especially in the southeast.

Updated at: 1202 on Sat 27 Aug 2016

UK Outlook for Sunday 11 Sep 2016 to Sunday 25 Sep 2016:

There is some doubt in the detail of the forecast for this period, but the most likely scenario is for westerly or southwesterly winds to dominate. This will bring changeable weather, with showers or longer spells of rain interspersed by some dry and bright periods. The heaviest and most persistent rain is expected to occur in the north and west, where it could also be windy at times. The best of the brighter weather probably occurring in the south and east. A trend towards drier and more settled conditions looks more possible during the second half of September. Temperatures through this period are likely to be generally above average, with any colder spells being transient.

Updated at: 1202 on Sat 27 Aug 2016

Weather map

Sat 1300

Weather forecast map for Porthmadog

Porthmadog Porthmadog – Sunny intervals 52.9276 -4.1321
Aberystwyth Aberystwyth – Sunny intervals 52.415 -4.0817
Newtown (Powys) Newtown (Powys) – Cloudy 52.5118 -3.3118
Wrexham Wrexham – Sunny intervals 53.0428 -2.9911
Stoke-on-Trent Stoke-on-Trent – Heavy rain 53.0024 -2.178
Preston Preston – Sunny day 53.763 -2.7017
Hereford Hereford – Cloudy 52.056 -2.7146
Douglas (Isle of Man) Douglas (Isle of Man) – Sunny intervals 54.1518 -4.484
Manchester Manchester – Sunny intervals 53.479 -2.2465
Swansea Swansea – Sunny intervals 51.621 -3.9424
Pembroke Pembroke – Cloudy 51.6731 -4.9084
Birmingham Birmingham – Light shower day 52.4859 -1.889
Cardiff Cardiff – Sunny intervals 51.4812 -3.1778
Kendal Kendal – Sunny day 54.3279 -2.7449
Sheffield Sheffield – Light rain 53.3809 -1.4686
Leeds Leeds – Cloudy 53.8011 -1.547
Nottingham Nottingham – Cloudy 52.9545 -1.1565
Newry Newry – Sunny day 54.1707 -6.3348
Barnstaple Barnstaple – Sunny day 51.0777 -4.0571

Location Details

Porthmadog

Location: 52.9276, -4.1321

Altitude: 9.0 m above mean sea level

Video forecast