According to French election: Turnout sharply down in Le Pen-Macron battle, voter turnout in the second round of French presidential election was the lowest since 1981:
The participation rate reported by the interior ministry for this election at 17:00 was more than six points lower than the 72% recorded at the same time in 2012 and nearly 10 points down on the 75.1% of 2007. In fact, it is lower than all the elections back to 1981.
I think that one possible reason for this lower turnout is that all polls declared Macron a clear winner, but the elections from 2002 had a higher voter turnout, when Jacques Chirac was the clear winner even more (got 82.2% in the second round with almost 80% voter turnout).
Question: why was the turnout so low in the second round of French presidential elections?