How reliable is Cat Bi International Airport?
Month-by-month weather risk and connection guidance for Cat Bi 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 HPH yet
Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at Cat Bi 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 Haiphong (Hai An)
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 · 99/100 favorability
Roughest month
Most disruptive — low visibility & fog · 90/100 favorability
The read on HPH
What the numbers say about flying through Cat Bi International Airport
PlaneSane doesn't yet have on-time and cancellation history for Cat Bi 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, Haiphong (Hai An) is an unusually calm-weather airport year-round. June is the calmest stretch for flying, scoring 99 out of 100 for favorable conditions, while February is the most disruptive at 90, 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 Haiphong (Hai An), 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 HPH
- What is the best month to fly from HPH for good weather?
- June has the calmest flying weather at Cat Bi International Airport. February is the most disruptive, mainly from low visibility & fog.
Planning a trip through Haiphong (Hai An)?
Score real flights to and from HPH on reliability, weather, and connection safety — not just price.