Cloak of Shade

This spell provides the subject with some degree of protection from the harmful effects of the sun.

The cloaked subject treats environmental heat due to sun exposure as manageable, not taking any adverse effects from heat exhaustion.

The cloak of shade also negates any penalties from being in direct sunlight, such as a drow's sunlight sensitivity. The spell does not, however, eliminate the effects of direct sunlight on creatures vulnerable to sunlight, such as vampires. 

Cloak of shade has no effect on environmental heat from sources other than the sun.