National Forecast

Issued at: 13 September 2026 08:00

TODAY - Sunday 13th September

Today will be mostly cloudy and dry and any showers that develop will be isolated. Highest temperatures of 16 to 21 degrees, warmest in the south and east, with light southerly or variable winds.

TONIGHT

Tonight will be largely cloudy with mist and fog developing. Most places will be dry for the night, with just a few spots of drizzle, but showery rain will move into the southwest towards morning and will be heavy at times. Mild and humid with temperatures not falling below 12 to 16 degrees, in light to moderate southerly winds.

TOMORROW - Monday 14th September

Showery rain in the south and west on Monday morning, turning heavy at times, while the north and east will be dry with occasional sunshine. The rain will become widespread over the country for the afternoon and evening and will be heavy at times. There'll be mist and hill fog also. Warm and humid with highest temperatures of 17 to 23 degrees, with light to moderate southerly winds at first, increasing moderate to fresh through the day.

National Outlook

Overview: Cooler and changeable with rain or showers at times.

Monday night: Wet early in the night with widespread outbreaks of rain, along with mist and hill fog. The rain will gradually clear away to the east and will be followed by clear spells and scattered showers. Moderate to fresh southwesterly winds, easing and becoming westerly with the clearance of the rain. Very mild early in the night, but becoming cooler overnight with temperatures falling to between 11 and 14 degrees.

Tuesday: Brighter, cooler and fresher on Tuesday with a mix of sunny spells and scattered showers. Highest temperatures of 15 to 18 degrees with a moderate northwesterly breeze.

Tuesday night: Showers will become isolated during Tuesday night and will mainly affect the north and west. Lowest temperatures of 10 to 13 degrees with light to moderate northwesterly winds.

Wednesday: Mostly dry on Wednesday morning with sunny spells and isolated showers. Cloud will increase from the west through the afternoon, bringing some patches of drizzle. Top temperatures of 14 to 17 degrees in a moderate northwest to southwest wind.

Wednesday night: Cloudy with patches of drizzle early in the night, before a band of rain tracks eastwards across the country. The rain will quickly clear and will be followed by clear spells and showers. Lowest temperatures of 9 to 13 degrees with moderate southwest to west winds.

Thursday: Bright and breezy on Thursday with sunshine and scattered blustery showers. Cloudier conditions and longer spells of rain are possible in northern areas. Highest temperatures of 13 to 17 degrees with fresh and gusty westerly winds.

Outlook for the rest of the week: Staying changeable with further rain and showers at times, mixed with dry and bright periods. Daytime temperatures in the mid to high teens.