Fanjingshan is covered in cloud and mist for roughly 250 days of the year, and this is part of its character rather than an obstacle to it. Clear summit views are more likely from October through December and in March and April, when the weather systems that create the persistent cloud are less dominant. Summer (June–August) is warm and very wet — the mountain receives substantial rainfall, the forest is at its most lush, and mist covers the summit most days but clears occasionally for views of extraordinary quality.
Spring (April–May) is the most popular season: the azaleas that grow on the upper slopes bloom in a display that has made the mountain famous in China beyond its Buddhist significance. The flowering period is short — two to three weeks — and draws large visitor numbers. Autumn is quieter and often clearer.
The mountain is accessible year-round, but winter below the treeline can be cold and the summit frequently ices over. The cable car may close during severe weather. Check current conditions before visiting in January and February.