Another key factor for the occurrence of the larvae of the blue-wing demoiselle is the temperature of the water. This species prefers unlike the banded demoiselle, mainly the cooler and shadier areas of the water. The optimal temperature is a summer average 13 to 18 °C. At temperatures above 22 °C were often injuries of larvae observed and also a reduced hatch ability of eggs. The main reason is the oxygen content under higher temperatures. Individual populations may get used to permanently higher temperatures.