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Porthmadog weather map

YELLOW Warnings in force for Gwynedd
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    Forecast summary

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

    Regional forecast for Wales

    Remaining mild, cloudy and wet. Windy.

    Today:

    It will be another mild, windy and cloudy day across Wales with outbreaks of rain or drizzle at times. The rain will be more persistent, and heavy at times, across the hills in the north and west. Maximum Temperature 13C.

    Tonight:

    Remaining cloudy and windy for all areas with patchy rain or drizzle, mainly across the northern and western hills. Another mild night. Minimum Temperature 8C.

    Tuesday:

    Cloudy and windy for all areas, with patchy rain or drizzle at times. The rain likely to become more persistent and locally heavy in the north and west later. Maximum Temperature 13C.

    Outlook for Wednesday to Friday:

    More persistent and sometimes heavy rain moves southeastwards early Christmas Eve, with colder, clearer conditions and lighter winds arriving for Christmas Day. Further wind and rain arriving late Boxing Day.

    Updated at: 0407 on Mon 22 Dec 2014

    UK forecast for the next 5 days

    Rain, heavy across western hills, moving slowly southwards. Windy.

    This Evening and Tonight:

    Rain will extend slowly southwards to affect Northern Ireland, southern Scotland and northern England, persistent and heavy across western hills. To the north it will be cold with frequent showers, and to the south, mild with patchy drizzle. Generally windy.

    Tuesday:

    Rain will continue slowly southwards, heavy across western hills, reaching southern parts of the UK in the evening. It will stay cold further north with sunshine and showers.

    Outlook for Wednesday to Friday:

    Rain will clear southwards during Christmas Eve, with colder, clearer conditions following. Largely fine on Christmas Day with wintry showers across eastern Britain. Turning wet and windy on Boxing Day.

    Updated at: 1445 on Mon 22 Dec 2014

    Outlook for the UK over the next 6-30 days

    UK Outlook for Saturday 27 Dec 2014 to Monday 5 Jan 2015:

    Most places will be wet and windy on Saturday, with gales or sever gales developing in places. Southeastern areas of England may stay dry at first, however. Cloud and rain are expected to clear erratically eastwards during Sunday leaving sunny spells and scattered blustery showers. These will be most frequent across northern and western Britain, becoming wintry with snow in the north. Temperatures will initially be above average but fall below as the rain clears. It will become colder into the following week with snow showers developing across the north. These may spread southwards at times and it will be frosty with freezing fog patches possible. It may turn more unsettled with time, with wetter and windier conditions returning from the west, and temperatures becoming nearer normal.

    UK Outlook for Tuesday 6 Jan 2015 to Tuesday 20 Jan 2015:

    The most likely scenario for the coming New Year is for a continuation of changeable, and at times, windy weather coming from the Atlantic with the wettest weather probably across western parts of the UK, and southern and eastern parts most likely to see the best of any dry weather. In between the wetter periods there should be drier, brighter, and colder spells. Temperatures are most likely to be around, or slightly below, average for the time of year with overnight frosts and some snow possible, particularly over the high ground.

    Updated at: 1445 on Mon 22 Dec 2014

    Location Details

    Porthmadog

    Location: 52.9276, -4.1321

    Altitude: 9m above mean sea level

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