Google has confirmed that it has now decreased the length of these snippets. Danny Sullivan of Google wrote, “Our search snippets are now shorter on average than in recent weeks.” He added that they are now “… slightly longer than before a change we made last December.”
Sullivan said, “There is no fixed length for snippets. Length varies based on what our systems deem to be most useful. He added, Google will not state a new maximum length for the snippets because the snippets are generated dynamically.
Desktop at around 160 characters, down from around 300+ characters…while mobile characters for the search results snippets are now down to an average of 130 characters