"I was already pretty clear (in September) that hiking rates around the end of the year was not a very good idea," Jansson told reporters on the sidelines of a conference.
"I think that developments since then have strengthened that picture."
Jansson pointed to unemployment, below-target inflation, plunging PMI figures and uncertainty over the global economy.
"The whole map is moving in the wrong direction," Jansson said.
At its latest policy meeting in September, the Riksbank kept its benchmark interest rate at -0.25pc but stuck to plans for a hike late this year or early 2020.