Hywel Dda University Health Board says the number of people going to accident and emergency departments has increased at all of its hospitals this month, compared to last month.
It says some planned surgery has been postponed, so resources can be redeployed to A&E units, but it is working to ensure patients are not delayed in moving out of hospital and into more appropriate care.
More top news
Sunny spells will develop but the winds will be strong, especially along the coast and over high ground. The odd light shower is likely too.
Theresa May promises a new relationship with governments of Wales, Scotland and Northern Ireland ahead of Brexit talks between the nations
It'll be a mainly dry but chilly night for most of us with a risk of patchy frost, fog and low cloud later.