What the app shows you
Full FogCast score, fog type, chase-or-skip verdict, and 10-day outlook — all in the app.
Get LightCast Suite on iOS
Know before you drive: FogCast checks the conditions that produce photogenic fog
Get more than a snapshot of current conditions. The LightCast app unlocks everything to plan ahead
Humidity alone isn't enough. Wind alone isn't enough. Cloud cover alone isn't enough. Photogenic valley fog requires several conditions to line up at once, and most weather apps don't read them together.
Set a FogCast threshold once. The app will alert you when conditions at your saved locations look promising, so you're not manually checking at 4am.
Don't waste a sunrise drive. Check FogCast before you leave.
Download on the App StoreSenja is Norway's second-largest island, located inside the Arctic Circle in Troms county, and one of the most visually dramatic landscapes in Europe. The island's western coast faces the open Norwegian Sea with jagged peaks rising directly from the water — fjords, sea stacks, sandy beaches, and glacially carved summits all within a few kilometers. Fog on Senja behaves differently than further south: the Arctic maritime climate, the midnight sun, and the sea's proximity create fog that can be both denser and more rapidly shifting than anywhere in the Norwegian mainland.
Segla mountain at 639 meters above Mefjordvær is the iconic Senja subject — a pyramidal peak rising from the sea that, when partially wrapped in sea fog, becomes one of the most elemental mountain-fog images in Europe. Tungeneset viewpoint across Steinfjorden provides the classic below-fog reflection of the jagged peaks in still water. Ersfjordstranda beach with its crescent of white sand and surrounding peaks is extraordinary when fog rolls in from the Norwegian Sea. The summer season from late May through August allows fog photography during the midnight sun, adding golden light to already dramatic fog conditions.
Senja fog is predominantly sea fog moving onshore from the Norwegian Sea — warm, moist Atlantic air crossing the cold Arctic waters and condensing before landfall. The fog tends to move fast and dramatically rather than sitting stationary. A northwest wind of 10–20 km/h with sea temperatures below 8°C and air temperatures above 12°C produces active fog streaming through the mountain passes and across the fjords. Midnight sun fog photography — pale gold light through sea mist on the Arctic peaks — is an experience unlike anything else in landscape photography.