Municipal elections will be held in Israel on 30 October 2018. A runoff will be held on 13 November if no candidate for mayor receives at least 40% of the vote.

Sources and further reading:

The Latest News On The Israeli Municipal Elections 10/21/18

https://www.theyeshivaworld.com/news/israel-news/1607772/the-latest-news-on-the-israeli-municipal-elections-10-21-18.html

Meet the contenders seeking to be mayors of Israel’s top cities

https://www.timesofisrael.com/meet-the-contenders-seeking-to-be-mayors-of-israels-top-cities/