Water is wet: Water molecules are surrounding other water molecules to make water so doesn't that mean water (H2O) is wet because it is surrounded by its self? And you need a liquid to make something wet. H2O molecules coming in contact with another molecule or object, therefore just answered my own question. Water is wet because you need H2O molecules to make. something wet and H2O molecules surrounding themselves this way making water wet. Try making something wet without a liquid.