Rubber boas are one of the few snakes that prefer cooler temperatures. Being underground so much, they are used to the dark and cold. Thus, they need to be able to regulate their temperatures to keep their central nervous systems working. 

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The temperatures of their heads range from 13.8 to 32.2 degrees Celsius. Their body temperatures range from 11.5 to 34.5 degrees Celsius. When the environment is hotter than their preferred temperature of 27. 4 degrees Celsius, their heads are found to be cooler than the rest of their body. The opposite occurs when the environment is cooler than the rest of their body (Dorcas Head-Body Temperature).

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Both physiological and behavioral activities maintain the thermoregulation of rubber boas. Typically coiling is a behavior observed in larger snakes to lessen the cooling of their body temperature. However, since rubber boas are a smaller snake, they do not seem to use this behavior to prevent cooling. Physiological mechanisms are at play such as directing blood flow and adjusting heart rates. This is important for this snake in particular because it is nocturnally active (Zhang et al. Heating and Cooling Rates).