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Lethem Airport
Lethem · LTM · GY

How reliable is Lethem Airport?

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

0.0

Weather favorability

year-round climate

IATA / ICAO
LTM · SYLT
Time zone
America/Guyana
Coordinates
3.37, -59.79
Nearby airports

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

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

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 score0255075100100J100F100M100A100M100J100J99A99S100O100N100D
Calm (80+)Mixed (60–79)Disruptive (<60)

Calmest month

Jan

Calmest flying weather of the year · 100/100 favorability

Roughest month

Aug

Most disruptivethunderstorms · 99/100 favorability

The read on LTM

What the numbers say about flying through Lethem Airport

PlaneSane doesn't yet have on-time and cancellation history for Lethem 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, Lethem is an unusually calm-weather airport year-round. January is the calmest stretch for flying, scoring 100 out of 100 for favorable conditions, while August is the most disruptive at 99, driven mainly by thunderstorms. 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 Lethem, 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 LTM

What is the best month to fly from LTM for good weather?
January has the calmest flying weather at Lethem Airport. August is the most disruptive, mainly from thunderstorms.

Planning a trip through Lethem?

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