There will be occasional thunderstorms with powerful lightning that can easily kill you in Tears of the Kingdom. There’s an easy way to avoid lightning as you roam around the Land of Hyrule, though.
How to Avoid Lightning Strikes
Unequip all items that are metal to avoid getting struck by lightning. When you’re running around in a lightning storm and you have metal items equipped, such as the Royal Claymore or Traveler’s Shield, then the lightning will be attracted to you.
You’ll know if you have something metal equipped since Tears of the Kingdom gives you a bit of a warning buffer. You’ll see static electricity appear around you—slowly at first, but then at an increased rate.
If you fail to remove your metal equipment during this period, you’ll be struck by lightning. However, remember that enemies are still out there, even during a thunderstorm, so you’ll want to keep some non-metal shields and weapons on hand so you can still defend yourself.