To infer or surmise based on circumstances or evidence; to make an educated guess about something not clearly known.
現場の状況から推察すると、地震のあとに火事が起きたようだ。
From the condition at the scene, it can be inferred that a fire broke out after the earthquake.
詳細は分かりませんが、部長の様子から推察するに何か問題があるようです。
I don't know the details, but judging from the manager's demeanor, it seems there is some problem.
これはあくまで私の推察に過ぎないが、彼は来月辞めるのではないかと思う。
This is only my conjecture, but I think he might resign next month.