How reliable is Mattala Rajapaksa International Airport?
Month-by-month weather risk and connection guidance for Mattala Rajapaksa 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 HRI yet
Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at Mattala Rajapaksa 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 Mattala
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 · 100/100 favorability
Roughest month
Most disruptive — thunderstorms, high winds · 97/100 favorability
The read on HRI
What the numbers say about flying through Mattala Rajapaksa International Airport
PlaneSane doesn't yet have on-time and cancellation history for Mattala Rajapaksa 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, Mattala is an unusually calm-weather airport year-round. June is the calmest stretch for flying, scoring 100 out of 100 for favorable conditions, while April is the most disruptive at 97, driven mainly by thunderstorms and high winds. 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 Mattala, 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 HRI
- What is the best month to fly from HRI for good weather?
- June has the calmest flying weather at Mattala Rajapaksa International Airport. April is the most disruptive, mainly from thunderstorms and high winds.
Planning a trip through Mattala?
Score real flights to and from HRI on reliability, weather, and connection safety — not just price.