Clear skies in the morning on Sunday with local cloud developing by early afternoon.
Winds will initially be light, variable, force three, later turning moderate, south-westerly to north-westerly, force three to four Beaufort.
The sea will be smooth to slight.
Temperatures will rise to 31 degrees Celsius inland, 22 degrees Celsius in the mountains, 28 in the west and north coasts and 29 in the south and east coasts.
