If you get the wet pressure treated wood and live in a low humidity area then you can probably wait 2 3 weeks and then stain your wooden fence.
Staining pressure treated fence boards.
With these effective steps you can enhance your deck fence.
Pressure treated wood contains preservatives to prevent rot and insect damage but it remains vulnerable to the sun wind moisture and dirt.
Wear gloves when handling pressure treated wood.
Ordinary pressure treated lumber from a home center however requires anywhere from two to three days to dry sufficiently before you can apply a water based semitransparent stain.