January 31 – A total lunar eclipse takes place, the 49th eclipse of Lunar Saros 124.The first round of voting of the 2018 Cypriot presidential election is held.2018 Finnish presidential election: Incumbent president Sauli Niinistö is reelected on the first round of voting.January 26– 27 – The second round of voting of the 2018 Czech presidential election is held and incumbent president Miloš Zeman is reelected.January 24 – Scientists in China report in the journal Cell the creation of the first monkey clones using somatic cell nuclear transfer, named Zhong Zhong and Hua Hua.
January 20– 22 – The US government enters a federal government shutdown as a result of a dispute over Deferred Action for Childhood Arrivals.January 20 – Turkey, led by President Recep Tayyip Erdoğan, announces the beginning of a military offensive to capture a portion of northern Syria from Kurdish forces, amidst the ongoing Kurdish–Turkish conflict.A missile alert sent as a Civil danger warning caused 38 minutes of panic. January 13 – 2018 Hawaii false missile alert.January 12– 13 – The first round of voting of the 2018 Czech presidential election is held.January 4 – SPLM-IO rebels loyal to Chan Garang Lual start a raid against Juba, capital of South Sudan.