Met Eireann has issued a fog warning for the entire country until 9am this morning.
The weather alert was issued at 5am and will be in place for all of the Republic until 9am this morning.
The forecaster said: "Fog in many areas this morning, dense in places. Fog will largely clear through the morning, but may linger locally near eastern and southern coasts."
But it will clear up into a very pleasant day with temperatures tipping 19C in some parts of the country - with a similarly lovely day tomorrow.
A Met Eireann forecaster said: "Foggy in many areas this morning. Fog will clear through the morning to leave a dry day for most areas with sunshine developing. Some pockets of fog may linger along southern coasts and in the Irish Sea. Just the chance of a spot of rain in any cloudier periods. Feeling warm and humid in highest temperatures of 15 to 19 degrees and light southeast or variable breezes.
"Many areas will have a dry day tomorrow, although there will be some light rain here or there, mainly over the western half of the country. The best of sunshine will be in the east where it will be warmest. Highest temperatures of 15 to 19 degrees with a moderate southwesterly breeze, fresh along Atlantic coasts."
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