How do high latitude and the Sun’s angle affect taiga temperatures?

In the taiga biome, high latitude and the Sun’s angle are primary factors that contribute to its characteristically cold climate.1

Because the taiga is located at high latitudes, the Sun never reaches the 90° overhead position common in the tropics. As latitude increases, the maximum solar elevation angle decreases—for example, it is 63.5° at 50° N and only 47° at the Arctic Circle. When the Sun has a lower elevation angle, solar energy is less intense because it is spread out over a larger surface area of Earth.12

Additionally, high latitudes experience significant variations in day length, which further influence temperature. During the long winter nights, radiation emitted by the Earth's surface escapes into the atmosphere, leading to intense cooling. This cooling effect is often amplified by snow cover, which reflects incoming solar radiation rather than absorbing it. Together, these factors ensure that coldness remains the dominant climatic feature of the taiga.12