Fog in Alstahaug
daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 8 hours of dense fog here (10-year average).
Measured at Sandnessjøen Airport; Stokka (ENST). This station has climatology and live observations only.
Measuring station
| station | airport | fog hours/yr | forecast |
|---|---|---|---|
| ENST | Sandnessjøen Airport; Stokka | 31 h/yr | climatology |
Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.
When Alstahaug fogs in
Fog here concentrates in July and April — about 31 hours in a typical year at ENST, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the ENST station page.
Fog season
Fog season is February, March, April, May, June, July, August, September, November, December, peaking in July; fog is mostly a midnight–4 AM phenomenon; typically thinning out by 5 AM; a typical event lasts about 1 hour once it forms local time · 10-yr average
Machine access: data.json · llms.txt · forecast verification. Not for operational use.