Fog at Krakow-Balice Airport forms frequently because of valley geography, moist air from the Vistula, and calm nights that trap low-level moisture near the runway.
Why Fog Occurs Frequently at Krakow Airport
The airfield sits in a shallow basin close to the Vistula valley, so humid air lingers when wind is light. Temperature inversions at night limit mixing, letting radiation fog build quickly, while advection fog appears when mild, moist air rides over cooler ground.
Primary drivers
- Moisture pooling from nearby rivers and reservoirs.
- Bowl-shaped terrain that slows air circulation.
- Nighttime inversions that keep cold air — and moisture — near the surface.
Seasonal Patterns of Fog in the Region
Fog in Krakow is most common from late autumn through winter, especially during windless mornings and evenings after rainfall. In transitional months, rapid drops in temperature after sunset can push RVR below operational minima.
When to expect the thickest fog
- Early mornings after clear, humid nights.
- Evenings following rain, when cooling traps moisture in the valley.
- Prolonged high-pressure periods with weak winds and persistent inversions.
Impact of Local Geography on Flight Operations
The valley setting amplifies fog persistence, lowering arrival/departure rates and raising the chance of holding or diversions. Understanding Krakow Airport visibility and is there fog in Krakow helps predict schedule risk.
What passengers should watch
- RVR changes in METAR/SPECI updates and any Low Visibility Procedures (LVP) notices.
- Airline alerts about delays, cancellations, or potential diversions.
- Alternate plans if fog persists through your departure slot.
See the live Krakow flight status for real-time departures, arrivals, and fog-related advisories.