FYWB — Walvis Bay International Airport

fog forecast & climatology · Walvis Bay(Rooikop) city page · full 10-year analysis →
No fog forecast feed exists for this station. September typically brings about 12 hours of dense fog here (10-year average).

Fog hours per year
141 h below CAT I minima (2016–2026 average)
Fog season
August and July
Typical fog event
~2 h once it forms (middle half 1–2 h, n=609)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Walvis Bay International Airport spends 141 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in August and July. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~2 hJanFebruary: ~2 hFebMarch: ~7 hMarApril: ~14 hAprMay: ~20 hMayJune: ~20 hJunJuly: ~21 hJulAugust: ~27 hAugSeptember: ~12 hSepOctober: ~4 hOctNovember: ~4 hNovDecember: ~2 hDec
Fog season runs March through September, peaking in August; fog is mostly a 6 AM–9 AM phenomenon; typically thinning out by 10 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.