Fog

Whether in the form of a low-lying cloud or a mist rising from the ground, fog obscures all sight beyond 5 feet, including darkvision. Creatures 5 feet away have concealment (20% miss chance).

Source

Core Rulebook pg. 399

This website uses trademarks and/or copyrights owned by Paizo Inc., which are used under Paizo's Community Use Policy. We are expressly prohibited from charging you to use or access this content. This website is not published, endorsed, or specifically approved by Paizo Inc. For more information about Paizo's Community Use Policy, please visit paizo.com/communityuse. For more information about Paizo Inc. and Paizo products, please visit paizo.com.