Flood alert at Gower and Swansea Bay due to high tide
The Environment Agency Wales says one flood alert remains in force on Tuesday.
It warns of possible flooding on the Swansea Bay and the Gower coast due to predicted high tides.
The alert along the Gower peninsula is between Pontardulais and Llantwit Major.
Heavy rain fell on Monday, with up to 23mm over a 24 hour period in some places.
Earlier, alerts were also in force in the Usk and Wye estuaries.
Heavy rain on Bank Holiday Monday included 22mm falling at Capel Curig in Conwy, 23mm at Lake Vyrnwy in Powys and 18mm recorded falling in St Athan in the Vale of Glamorgan.
BBC Wales weather presenter Behnaz Akhgar said most of the showers had cleared by Tuesday morning.
But on Wednesday, the rain is set to return.
"We are set for a wet and windy day, but it shouldn't feel as cold as the weekend rain as we have a milder airmass.
"The rain will be heavy at times."
She said Thursday was likely to bring heavy rain and strong winds, with an early warning for the south and east of Wales.