Elevate the connection and use a GFCI.

Yes, do both. GFCI is the non-negotiable safety net. Then physically keep the plug junction off the wet grass.

A common trick: put the connection inside a small plastic container (like a Tupperware or a cut-off milk jug) flipped upside down, with the cord coming out the bottom through a notch. Weigh it down with a brick. Or just drape a plastic bag over the connection and tape the bag around the cord—not perfect but works for a few hours.

The real risk isn’t the cord jacket (that’s usually rated for wet), it’s where two plugs meet. Water can wick in and cause a short. So keep that joint dry and elevated. And again: GFCI. If the worst happens, the breaker trips instead of you.

Water and electricity don’t compromise.