It was also down in viewers.
18-49 Adults: 0.3
Viewers: 1.442 million.
This is not good news for Haven. Even when it's only the second episode of the 3rd season, ratings it's all the networks look for when they talk about a renewal. My personal opinion is that maybe the ratings were this low because of the big networks' premiere.
We got 11 more episodes to go. Please watch live and let get this show a 4th season.
Source: TV by the Numbers