How reliable is Graz Airport?
Month-by-month weather risk and connection guidance for Graz Airport. We don’t yet have on-time performance history here — see why below.
Weather favorability
year-round climate
On-time performance data isn’t available for GRZ yet
Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at Graz Airport yet. Weather climatology below comes from global airport observations and still applies.
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Weather by month
When the weather works for you at Feldkirchen bei Graz
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 98/100 favorability
Roughest month
Most disruptive — low visibility & fog, freezing conditions · 71/100 favorability
The read on GRZ
What the numbers say about flying through Graz Airport
PlaneSane doesn't yet have on-time and cancellation history for Graz Airport, so it isn't scored for departure reliability here — that record currently covers the US, UK, Brazil, and Australia. The weather and connection context below comes from separate global sources and still applies.
On weather, Feldkirchen bei Graz is an unusually calm-weather airport year-round. April is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while December is the most disruptive at 71, driven mainly by low visibility & fog and freezing conditions. The seasonal swing is real but manageable; favor the calmer months when your dates are flexible.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Feldkirchen bei Graz, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about GRZ
- What is the best month to fly from GRZ for good weather?
- April has the calmest flying weather at Graz Airport. December is the most disruptive, mainly from low visibility & fog and freezing conditions.
Planning a trip through Feldkirchen bei Graz?
Score real flights to and from GRZ on reliability, weather, and connection safety — not just price.