You Do Need power plug adapter while traveling from Saint Lucia to North Macedonia.

Here is Why You Need An Adapter

The outlet and plug type used in North Macedonia are C and F and in Saint Lucia is G. This is how they look like.

Saint Lucia

In Saint Lucia, outlets of type G are in use.

Type G

North Macedonia

In North Macedonia, outlets of type C and F are in use.

Type C

Type F