Mercury enters Sagittarius

Mercury crosses into Sagittarius on 11 December 2025 at 22:32 UTC.

An ingress is simply a body passing 0° of a sign, but it marks a genuine change of register: Mercury in Sagittarius operates through fire means and at a mutable tempo. Mercury moves quickly and changes how conversation, negotiation and thinking are conducted.

Sagittarius is ruled by Jupiter, so for as long as Mercury is here its behaviour is coloured by that planet as well as by its own nature.