BIVM — Vestmannaeyjar Airport

fog forecast & climatology · Vestmannaeyjar city page · full 10-year analysis →
No fog forecast feed exists for this station. September typically brings about 35 hours of dense fog here (10-year average).

Fog hours per year
523 h below CAT I minima (2016–2026 average)
Fog season
October and August
Typical fog event
~2 h once it forms (middle half 1–3 h, n=881)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Vestmannaeyjar Airport spends 523 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in October and August. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~9 hJanFebruary: ~8 hFebMarch: ~13 hMarApril: ~37 hAprMay: ~96 hMayJune: ~88 hJunJuly: ~63 hJulAugust: ~107 hAugSeptember: ~35 hSepOctober: ~108 hOctNovember: ~15 hNovDecember: ~13 hDec
Fog season runs April through October, peaking in October; fog is mostly a 1 AM–2 AM phenomenon; typically thinning out by 4 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

For flight operations

EFVS crews: the CHASE board ranks airports by live fog status, approach lighting, go-around height and flight time from your base. Forecast probabilities publish here per-airport once the calibrated model beats climatology on live verification — receipts on the scorecard. Methodology.

Sources: NOAA/NWS National Blend of Models guidance · METAR observations 2016–2026 (Iowa Environmental Mesonet) · FAA NASR. Machine access: data.json · llms.txt. Not for operational use.