The Northern Lights season in Levi runs from late September through to late March, and in a strong year into early April. The aurora itself is present all year — it never truly switches off — but it can only be seen against a genuinely dark sky. From late May to late July, Levi's midnight sun keeps the sky too bright for viewing. As the nights draw back in from September, the aurora becomes visible again.
You need three things to line up: darkness, a clear sky, and solar activity. Levi delivers the first reliably through the dark months. The other two vary from night to night, which is why patience and a little planning matter far more than luck.
The best viewing hours are generally between about 9pm and 2am, when the sky is at its darkest and geomagnetic activity tends to peak. It is worth staying up, or setting an alarm to check the sky, rather than assuming an early evening glance tells the whole story.
