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Iwami Airport
Masuda · IWJ · JP

How reliable is Iwami Airport?

Month-by-month weather risk and connection guidance for Iwami Airport. We don’t yet have on-time performance history here — see why below.

0.0

Weather favorability

year-round climate

IATA / ICAO
IWJ · RJOW
Time zone
Asia/Tokyo
Coordinates
34.68, 131.79

On-time performance data isn’t available for IWJ yet

Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at Iwami 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 Masuda

A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.

Calm-weather score025507510092J92F94M93A94M96J95J96A95S98O97N95D
Calm (80+)Mixed (60–79)Disruptive (<60)

Calmest month

Oct

Calmest flying weather of the year · 98/100 favorability

Roughest month

Feb

Most disruptivesnow, low visibility & fog · 92/100 favorability

The read on IWJ

What the numbers say about flying through Iwami Airport

PlaneSane doesn't yet have on-time and cancellation history for Iwami 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, Masuda is an unusually calm-weather airport year-round. October is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while February is the most disruptive at 92, driven mainly by snow and 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 Masuda, 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 IWJ

What is the best month to fly from IWJ for good weather?
October has the calmest flying weather at Iwami Airport. February is the most disruptive, mainly from snow and low visibility & fog.

Planning a trip through Masuda?

Score real flights to and from IWJ on reliability, weather, and connection safety — not just price.