How reliable is Hamilton International Airport?
Month-by-month weather risk and connection guidance for Hamilton International 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 HLZ yet
Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at Hamilton International 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 Hamilton
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Weather history is not available for all months yet; this chart shows the 8 months currently covered.
Calmest month
Calmest flying weather of the year · 98/100 favorability
Roughest month
Most disruptive — low visibility & fog · 91/100 favorability
The read on HLZ
What the numbers say about flying through Hamilton International Airport
PlaneSane doesn't yet have on-time and cancellation history for Hamilton International 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, Hamilton is an unusually calm-weather airport year-round. January is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while May is the most disruptive at 91, driven mainly by low visibility & fog. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Hamilton, 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 HLZ
- What is the best month to fly from HLZ for good weather?
- January has the calmest flying weather at Hamilton International Airport. May is the most disruptive, mainly from low visibility & fog.
Planning a trip through Hamilton?
Score real flights to and from HLZ on reliability, weather, and connection safety — not just price.