GUCY pressure (QNH) trend
Ahmed Sékou Touré International Airport
The altimeter setting over time. Sharp falls mark approaching systems; the range tells you what to expect on a transition altitude.
Lowest QNH
1007 hPa
Sep 22, 2026
Highest QNH
1040 hPa
Sep 8, 2026
Mean QNH
1013 hPa
413 archived observations · Archive updated continuously
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