Table 2.

Default (“safety net”) guide to temperature and humidity provisions for terrestrial and aquatic animals.

Zone/climate	Temperatureday	Temperaturenight	Humidity
Temperate	15–20°C	12–18°C	60–70%
Subtropical	20–25°C	18–20°C	60–70%
Tropical	25–30°C	24–27°C	70–80%
Semi-arid/desert	20–25°C	18–20°C	40–60%
Arid/desert	25–30°+C	21–24°C	30–45%
Dogs/cats	10–26°C	10–26°C	30–45%
Freshwater (cold)	10–15°C	10–15°C	N/A*
Freshwater (temperate)	10–25°C	10–25°C	N/A*
Freshwater (subtropical)	16–22°C	16–22°C	N/A*
Freshwater (tropical)	24–27°C	24–27°C	N/A*
Marine (cold)	7–12°C	7–12°C	N/A*
Marine (temperate)	10–18°C	10–18°C	N/A*
Marine (subtropical)	18–22°C	18–22°C	N/A*
Marine (tropical)	22–28°C	22–28°C	N/A*

Derived from reviewed literature (8, 44, 57, 58, 93–99). Table should not be used to determine regular thermal management practices. The main purpose of the table is to offer “safety-net” temperatures.

^*Humidity levels are not relevant under water.