The Knights of the Holy Sun are the militant arm of the Jovian Church, dedicated to His Glory, and are well known and admired by many for their bravery in battle.
At regular intervals, a god takes control of your world's weather. Choose the gods at random each turn of the interval and begin applying their effects subtly. Their power will depend on the strength of those who worship them.
For civilised people, worship of a god actually wanes during that god's month in an effort to reduce their potential destructive effect.