Rules Index

Chapter 10: Game Mastering / Environment / Climate

Temperature

Source Core Rulebook pg. 517 ^1.1
Often, temperature doesn’t impose enough of a mechanical effect to worry about beyond describing the clothing the characters need to wear to be comfortable. Particularly hot and cold weather can make creatures fatigued more quickly during overland travel and can cause damage if harsh enough, as shown in Table 10–13.

Appropriate cold-weather gear (such as the winter clothing) can negate the damage from severe cold or reduce the damage from extreme cold to that of particularly severe cold.

Table 10-13: Temperature Effects

Category	Temperature	Fatigue	Damage
Incredible cold	-80º F or colder (-62º C or colder)	2 hours	Moderate cold every minute
Extreme cold	-79º F to -21º F (-61º C to -29º C)	4 hours	Minor cold every 10 minutes
Severe cold	-20º F to 12º F (-28º C to -11º C)	4 hours	Minor cold every hour
Mild cold	13º F to 32º F (-10º C to 0º C)	4 hours	None
Normal	33º F to 94º F (1º C to 34º C)	8 hours	None
Mild heat	95º F* to 104º F* (35º C to 40º C)	4 hours	None
Severe heat	105º F* to 114º F (41º C to 45º C)	4 hours	Minor fire every hour
Extreme heat	115º F to 139º F (46º C to 59º C)	4 hours	Minor fire every 10 minutes
Incredible heat	140º F or warmer (60º C or warmer)	2 hours	Moderate fire every minute

* Adjust temperatures down by 15º F (9º C) in areas of high humidity

Archives of Nethys

Rules Index

Temperature

Table 10-13: Temperature Effects