Weather
Overview
Leinster
Today
A mix of sunny spells and scattered showers, some possibly heavy and thundery, will move eastwards this evening. Moderate to strong southwest winds will back southeast overnight.
Tonight
Isolated showers are expected early tonight with many areas becoming dry and clear for a time. However, outbreaks of heavy rain associated with the arrival of Storm Agnes will start spreading from the south early on Wednesday morning. Lows of 8 to 11 degrees in moderate to strong southeast winds.
Tomorrow
Storm Agnes will track northwards over Ireland on Wednesday with disruption likely in places. It will be a wet and very windy day with spells of heavy and occasionally intense rain, combined with very strong and gusty winds that may cause difficult travel conditions and localised flooding. Strong onshore winds and high seas will bring the risk of coastal flooding. Highest temperatures of 15 to 17 degrees with strong to gale force southeast winds, veering westerly later in the day.
National
Tonight
Isolated showers will die out overnight with many areas becoming dry and clear for a time. Outbreaks of rain will develop in the southwest overnight as Storm Agnes approaches. It will turn very windy in the south and west by Wednesday morning with south or southeast gales developing at the coast. Lowest temperatures of 7 to 11 degrees early in the night, but turning milder later.
Tomorrow
Storm Agnes will track northwards over Ireland on Wednesday with disruption likely in places. It will be wet and very windy with outbreaks of heavy rain extending nationwide with the likelihood of some spot flooding. Becoming extremely windy or stormy for a time in the east and south with the potential for severe and damaging gusts. Strong onshore winds and high seas will bring the risk of coastal flooding on eastern and southern coasts. Highest temperatures of 14 to 17 degrees with strong to gale force southeast winds, veering westerly later in the day.
Outlook
Overview: Storm Agnes will clear away towards Scotland on Wednesday night but it will remain rather unsettled for the remainder of the week. Wednesday night: Staying windy on Wednesday night with strong and gusty westerly winds gradually easing as Storm Agnes tracks towards Scotland. Outbreaks of heavy rain in the northeast will give way to a mix of clear spells and scattered showers. Lowest temperatures of 9 to 12 degrees. Thursday: Bright spells and scattered showers on Thursday morning. On Thursday afternoon, a band of heavy rain will extend from the Atlantic, spreading eastwards across the country. A clearance will reach the west coast by evening. Highest temperatures of 14 to 17 degrees in fresh and gusty southwest winds. Becoming largely dry and clear on Thursday night with just a few isolated showers in Atlantic coastal counties. Lowest temperatures of 7 to 10 degrees in a moderate to fresh southwest breeze. Friday: Friday looks set to be a mostly dry day with plenty of sunshine and just the odd passing shower. Maximum temperatures of 14 to 18 degrees in moderate southwest breezes. Largely dry on Friday night with just a few showers possible in southern and western coastal counties. Lowest temperatures of 7 to 10 degrees in light southerly winds. Saturday: Current indications suggest a spell of rain will push north over the country on Saturday. Highs of 14 to 18 degrees in moderate to fresh southerly winds. Sunday: On Sunday, there’ll be a mix of sunshine and showers early on, before a band of rain pushes eastwards over the country. Highest temperatures of 14 to 18 degrees in moderate to fresh southwest winds.
Weather Warnings
Orange
National Weather Warning
None
Issued: 26 September 2023 23:25
Validity: 27 September 2023 07:00 to 28 September 2023 00:00
Marine Weather Warnings
Orange
Gale Warning
Cyclonic variable winds will reach gale force to strong gale force on all Irish coasts on Wednesday. Southeast to south winds will occasionally reach storm force 10 from Carnsore Point to Roches Point to Loop Head through Wednesday afternoon and evening.
Issued: 26 September 2023 23:25
Yellow
Small Craft Warning
See gale warning.
Issued: 26 September 2023 23:25
Coastal Reports
Malin Head Automatic
South-Southwest, 15 Knots, Fair, 16 Miles, 1010, Rising slowly
Dublin Airport
South-Southwest, 5 Knots, Fine, 16 Miles, 1014, Rising slowly
Buoy M5 51° 41'N 6° 42'W
South, 12 Knots, Wave ht: 2.1 m, The visibility at Tuskar is greater than 10 Miles, 1015, Rising slowly
Roches Point Automatic
South, 13 Knots, Cloudy, 5 Miles, 1013, Steady
Sherkin Island Automatic
South, 14 Knots, Cloudy, 7 Miles, 1012, Falling slowly
Valentia Automatic
South, 4 Knots, Light rain, 2 Miles, 1011, Falling slowly
Mace Head Automatic
South, 15 Knots, Fair, 11 Miles, 1010, Steady
Belmullet Automatic
South-Southwest, 9 Knots, Fair, 9 Miles, 1009, Steady
Buoy M2 53° 29'N, 5° 26'W
Southwest, 12 Knots, Wave ht: 1.4 m, 1014, Rising slowly
Buoy M3 51° 13'N, 10° 33'W
South-Southeast, 13 Knots, Wave ht: 3 m, 1011, Falling slowly
Buoy M4 55° 0'N 10° 0'W
Southwest, 18 Knots, Wave ht: 3 m, 1009, Rising slowly
Buoy M6 53° 4'N 15° 56'W
South-Southwest, 9 Knots, Wave ht: 3.1 m, 1004, Falling slowly
Sea Area Forecast
Sea Area Forecast until 0000 Thursday 28 September 2023. Issued at 0000 Wednesday 27 September 2023.
Meteorological Situation at 2100: A moderate to fresh southwest air-flow covers Ireland. A depression (Storm Agnes) will track across the country from the southwest on Wednesday.
Forecast for Irish coastal waters from Carnsore Point to Mizen Head to Erris Head
Wind: Southeast force 6 to gale force 8 imminent. Soon increasing south to southeast gale force 8 or strong gale force 9 and reaching storm force 10 for a time in the south and southwest. Later becoming cyclonic variable. Veering west force 7 or gale force 8 by the end of the period.
Weather: Heavy rain extending from the southwest, followed by showers later.
Visibility: Moderate or poor in any precipitation.
Forecast for Irish coastal waters from Erris Head to Belfast Lough to Carnsore Point and for the Irish Sea
Wind: Southeast force 4 or 5 imminent. Soon increasing southeast force 6 or 7 and reaching gale force 8 at times. Later becoming cyclonic variable force 7 to strong gale force 9. Decreasing west to southwest force 7 to gale force 8 by the end of the period.
Weather: Heavy rain extending from the southwest, followed by showers later.
Visibility: Moderate or poor in any precipitation.
Outlook for a further 24 hours until 0000 Friday 29 September 2023: Strong to gale force westerly winds, backing southwesterly. Decreasing moderate to fresh in southern sea areas on Thursday evening. Weather: Cloudy to fair at first. Rain extending from the west Thursday morning followed by scattered showers.