The Gunners boss is not getting carried away with his side's start to the season, despite moving five points clear at the top of the Premier League after beating Liverpool.
Arsenal moved five points clear at the top of the Premier League with a 2-0 victory over Liverpool at the Emirates Stadium on Saturday. But the Gunners now travel to Germany for a crucial Champions League clash with Borussia Dortmund before facing Manchester United, with Wenger wary of how quickly his side's fortunes could change.
"After the Aston Villa game [a home defeat], if I had told you that [this would happen] I would have to run away because you would have killed me," Wenger told the club's official website. "It shows you that things can change quickly but that should as well alert us that it can go the other way. We must keep good focus, continue to develop our team as there’s room for improvement.
"At the moment, with 10 games played, you can say 25 percent of the season [has gone]. You see the first tendencies and trends but it’s still not settled. By the end of November you will have a clearer idea."
Arsenal will also face Premier League surprise package Southampton, Marseille in the Champions League and Cardiff City in November.