Sun Exposure

 is a debuff inflicted during daytime when the player is exposed to sunlight for too long. It has no icon, but is indicated by a ray of sunlight and a gradual brightening of the screen.

Effects

 * Exposure level ticks up while in sunlight and ticks down while shaded (does not reset immediately in shade)
 * Causes rapid damage over time once the maximum exposure level is reached

Countermeasures
Sun Resistance Rating increases the amount of time that can be spent in sunlight before damage is dealt. The exact multiplier can be viewed by hovering over the Resistances section in the Character tab.
 * Cloaks
 * Cloaks
 * Cloaks