A Status Yellow Rainfall Warning is in place for Galway, Mayo, Sligo, Clare, Cork, Kerry, Tipperary and Waterford.
"By evening time a more prolonged spell of rain will develop in the west with the risk of spot flooding". The warning is in place to Tuesday morning at 6am. Met Éireann said rainfall accumulations of 25 to 50mm are expected over the period, with the potential for higher amounts on hills and mountains. This warning is valid until 11am.
As well as this, eight other counties were issued with rainfall warnings earlier today.
"There will be rain on Wednesday morning in western counties counties, but this will should become more confined to the coastal areas in the afternoon".
"However, it will still be breezy and blustery with a lot of cloud, but I can imagine there will be some spells of actual sunshine throughout the day".
Do not put away the brollies just yet, but Met Eireann is predicting warm temperatures of up to 18 degrees Celsius for this later this week.
The weather is set to finally improve this week. Seems like a decade since it's been warm and since we've seen sun.
"However, I wouldn't go as far as calling a heatwave". Lows of 8 to 11 degrees Celsius.
Temperatures will begin to decline from Friday and during the course of the weekend.
By this afternoon, wet and windy weather in Atlantic coastal counties is forecast to spread eastwards to most places - though the east coast will stay mainly dry until evening time.
"Cooler and fresher on Sunday with sunny spells and scattered showers".