National Forecast
Issued at: 11 September 2026 05:00
TODAY - Friday 11th September
A bright and generally dry day with sunny spells and just the odd light shower about, especially in the west and northwest. Cloud will thicken near western Atlantic coasts later in the evening, with outbreaks of rain and drizzle following towards nightfall. Highest temperatures of 15 to 20 degrees, coolest in the northwest, with a light westerly breeze, backing southerly through the day and freshening in the west in the evening.
TONIGHT
Becoming wet and breezy as rain spreads from the west through the night, although towards the southeast it may stay dry until morning. The rain will be very heavy and persistent at times across the west and north. Southwesterly winds will increase moderate to fresh and gusty, stronger near coasts. Lowest temperatures of 10 to 15 degrees.
TOMORROW - Saturday 12th September
Continuing wet and breezy in the morning. While the rain will clear southwards through the morning, it may linger in the south for much of the day. Further north, drier conditions will develop with scattered showers and possibly some brighter spells following the clearance of the rain. Highest temperatures of 16 to 21 degrees, with moderate to fresh southwesterly winds easing with the clearance of the rain.
National Outlook
Overview: Changeable with dry and bright days, followed in turn by wet or showery ones.
Friday night: Becoming blustery for most with rain developing mainly across the north and west of the country overnight, becoming more widespread by morning and turning heavy at times. Southwest winds will increase fresh and gusty with lowest temperatures of 11 to 15 degrees.
Saturday: Wet and blustery to start with widespread outbreaks of rain and fresh and gusty southwest winds. Drier conditions will develop in the north through the afternoon, but the rain is likely to persist in the south for much of the day. Highest temperatures of 17 to 21 degrees with southwest winds gradually easing moderate through the day.
Saturday night: Rain will clear from the south early on leaving a dry night for most, with isolated light showers and occasional clear spells. Lowest temperatures of 11 to 15 degrees with moderate southwest winds easing light westerly or variable overnight allowing mist and fog patches to form.
Sunday: A dry but cloudy day for most with the odd light shower around. Highest temperatures of 16 to 20 degrees with mostly light south to southwest breezes.
Monday: Likely a wet day with widespread outbreaks of rain, turning heavy at times. Highest temperatures of 17 to 21 degrees.
Further outlook: Current indications show showers and sunny spells on Tuesday with a drier day on Wednesday.
Temperature circle (°C): maximum and minimum temperature forecast for each day. Wind symbol (km/h): arrow points in the direction the wind is blowing. The weather and wind icons: for the time of maximum temperature and minimum temperature.