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6°C / 13°C5°C / 12°C8°C / 14°C6°C / 12°C

National Summary

Today

Rather cool and breezy today. Sunny spells and passing showers occurring through the day. Showers will be most frequent over Ulster, with parts of the south and east holding dry. Later this evening cloud will thicken across Atlantic counties, with rain arriving here by nightfall. Below normal afternoon temperatures, with highs of just 11 to 14 degrees, best values in the southeast. Westerly winds will be fresh and gusty.

Tonight

Damp and murky tonight with outbreaks of rain extending eastwards. Some heavy falls across the midlands and west, with mist and low cloud about too. Lowest temperatures 5 to 9 degrees. Westerly winds will be light to moderate in strength.

Tomorrow

Overnight rain in the east will clear away early tomorrow Friday. Sunny spells developing but scattered blustery showers too; most frequent across Ulster, Leinster and north Connacht - some heavy with the slight risk of thunder. Driest and brightest across Munster. Another cool and rather breezy day with highest temperatures of 10 to 14 degrees. Northwest winds will be fresh and sometimes gusty.

Outlook

JUNE BANK HOLIDAY WEEKEND: Mildest on Saturday, but turning cooler and more unsettled for Sunday and Monday.FURTHER OULOOK: Strong signal for much milder weather to develop as of midweek next week. FRIDAY NIGHT: Some lingering showers early in the night, mainly confined to northern areas later. Cold and mostly clear, with overnight lows of 2 to 5 degrees Celsius, with light westerly breezes. SATURDAY: Generally dry, bright and rather mild, with light to moderate southerly breezes. Nice sunshine around to begin, but increasing cloud will bring rain to Atlantic counties by evening, extending to all other areas during Saturday night. Highest temperatures 13 to 16 degrees Celsius; best values across the north midlands and east. SUNDAY: Overnight rain possibly still affecting eastern margins early on in the morning, quickly clearing away into the Irish Sea. The day will be largerly dry with some sunny spells, but there will a few showers about too, most of which will affect west and northwest counties later. A cool day, with temperatures of just 11 to 13 degrees Celsius, in a mostly moderate westerly wind. MONDAY: Wet and windy with outbreaks of rain, heavy at times. Again cool for the time of year with highest temperatures of just 10 to 13 degrees Celsius, with fresh southerly winds. Winds are likely to ease off later.

Sea Area Forecast

Sea Area Forecast untill 0500 Friday 29 May 2015 Issued at 0500 Thursday 28 May 2015

Meteorological Situation at 0300: An unstable, fresh to strong westerly airflow covers the country, with scattered showers moving eastwards, and a frontal system crossing overnight.

Forecast for Irish coastal waters from Slyne Head to Malin Head to Belfast Lough

Wind: Westerly force 6 or 7 and gusty. Decreasing force 5 or 6 and gusty Thursday afternoon, strongest for northern coasts. Further decreasing force 3 to 4 Thursday night, veering northwest later.

Weather: Scattered showers, most frequent in the northwest. Rain gradually moving in from the Atlantic this evening and overnight. Mist in parts.

Visibility: Generally good; moderate in showers and poor in rain and mist later.

Forecast for Irish coastal waters from Belfast Lough to Mizen Head to Slyne Head and the Irish Sea

Wind: West to northwest force 4 or 5, locally force 6.

Weather: Scattered showers, most frequent in the northwest. Rain gradually moving in from the Atlantic this evening and overnight. Mist in parts.

Visibility: Generally good; moderate in showers and poor in rain and mist later.

Outlook for a further 24 hours until 0500 Saturday 30 May 2015: Mostly fresh west to northwest winds. Overnight rain clearing into the Irish Sea. Scattered showers on Friday, mainly affecting north and east coasts, some heavy with the risk of thunder.

Coastal Reports

Malin Head Automatic

West, 21 Knots, Gust 32 Knots, Mod drizzle, 7 Miles, 1009, Steady

Dublin Airport

West, 18 Knots, Fair, 13 Miles, 1014, Rising slowly

Buoy M5 51° 41'N 6° 42'W

West-Northwest, 15 Knots, Wave ht: 1.3 m, The visibility at Tuskar is greater than 10 Miles, 1017, Rising slowly

Roches Point Automatic

West, 9 Knots, Fair, 16 Miles, 1017, Steady

Sherkin Island Automatic

West-Northwest, 11 Knots, Cloudy, 18 Miles, 1018, Steady

Valentia Automatic

West-Northwest, 15 Knots, Fair, 18 Miles, 1018, Steady

Mace Head Automatic

West, 23 Knots, Recent drizzle, 12 Miles, 1015, Steady

Belmullet Automatic

West, 13 Knots, Rain shower, 8 Miles, 1013, Steady

Buoy M2 53° 29'N, 5° 26'W

West, 18 Knots, Wave ht: 1.3 m, 1013, Steady

Buoy M3 51° 13'N, 10° 33'W

Northwest, 15 Knots, Wave ht: 2.5 m, 1019, Steady

Buoy M4 55° 0'N 10° 0'W

West-Northwest, 20 Knots, Wave height not available, 1011, Steady

Buoy M6 53° 4'N 15° 56'W

West, 18 Knots, Wave ht: 2.8 m, 1018, Steady

Weather Warnings

Small Craft Warning

West to northwest winds will reach force 6 today on coasts from Slyne Head to Malin Head to Belfast Lough.