The studied population of the Asian bush mosquito has a broad temperature range (7 °C to 31 °C) suitable for growing to adult females; the optimal temperature was calculated as 26 °C. The studied population displays up to six potential generations per year in Germany. According to our data, large scale larval overwintering is not possible. The temperature limit for eggs is -9 °C for two days or longer. The broad temperature range for development may have contributed to the invasion success of the species in Germany while population establishment may not be possible in regions with low numbers of generations per year and a high number of frost events for larvae and eggs as defined here.