SkyUnknown

UFO sightings by place

UFO sightings in Yonne: 21 reports

SkyUnknown lists 21 UFO sightings in Yonne, from 1976 to 2025, drawn from official records: GEIPAN (CNES).

Of the 21 cases with a conclusion from their source, 62% are explained (with certainty or probably), 38% lack the data to conclude, and 0 remains unidentified. The most frequent identified causes: sky lanterns (2); aircraft (1); balloons (1).

cases
21
unidentified
0
period
1976–2025
source
1
Map of the cases

Notable cases

The most complete records: account of the sighting, conclusion of the official investigation.

Other departments in the region

Sightings by decade

5
1970s2
1980s1
1990s4
2000s7
2010s2
2020s

Identified causes

For cases explained with certainty or probably.

All sightings

DatePlaceStatus
September 6, 2025Vinneuf · YonneExplained
May 11, 2023Neuvy-Sautour · YonneInsufficient data
September 17, 2019Auxerre · YonneExplained
September 14, 2019Gigny · YonneExplained
August 26, 2016Monéteau · YonneProbably explained
September 2, 2013Champigny · YonneProbably explained
July 26, 2012Fontenay-près-Vézelay · YonneExplained
July 8, 2012Saint-Julien-du-Sault · YonneProbably explained
July 3, 2010Brion · YonneProbably explained
May 13, 2009Monéteau · YonneInsufficient data
March 30, 2009Joigny · YonneProbably explained
November 4, 2008Pont-sur-Yonne · YonneInsufficient data
August 2, 2007Rogny-les-Sept-Écluses · YonneInsufficient data
October 15, 1995Coulange sur Yonne · YonneProbably explained
July 28, 1981Sens · YonneInsufficient data
February 26, 1981YonneProbably explained
April 30, 1978Saint-Sauveur · YonneInsufficient data
September 30, 1977YonneProbably explained
September 13, 1977L'Isle-sur-Serein · YonneInsufficient data
July 7, 1976Avallon · YonneInsufficient data
June 6, 1976Provency · YonneProbably explained
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The figures on this page are computed from the official records cited on each case. See sources and method