a soft day
What does a soft day mean?
A mild, grey day with light mist or drizzle in the air. Not lashing, not sunny — that particular damp, soft Irish weather where the rain is more of a suggestion than a downpour. Traditionally said as a greeting: 'Soft day, thank God.' The 'thank God' part is doing a lot of heavy lifting given it's still wet.
Origin
Long-established rural Irish greeting, used by farmers because soft rain is good for grass and crops. The phrase appears in Irish literature going back centuries and remains in everyday use, particularly in the west and southwest.