How much pressure is in the sunlight zone?

The sunlight zone, or photic zone, of the ocean extends from the surface down to about 200 meters (656 feet). At this depth, the pressure is approximately 20 times greater than atmospheric pressure at sea level, which is about 200 kilopascals (kPa) or 29 psi. This pressure increases with depth, but the sunlight zone remains relatively shallow compared to deeper ocean layers.