Here are a few tips approved by The Sill in caring for Peperomia.
Medium light and can tolerate low light Can take up to a few hours of direct sunlight indoors.
Water weekly. Allow potting mix to dry out before watering. Soil about 1-2” down should be dry to touch. Water more frequently during warmer months and fertilize during growth. Generally, the plant will droop or leaves will curl to show that it needs more water. Do not overwater or keep the soil wet for too long, as this will encourage root rot.
Any humidity level will do. Normal room humidity is fine.