What effect does this river have on the climate?

Rivers and lakes can adjust the local microclimate around them.

In summer, rivers are rich in water and evaporate vigorously, which increases the chances of rainfall in some areas. At the same time, because evaporation absorbs heat, the temperature can be reduced.

In winter, the land cools down quickly and the rivers and lakes cool down slowly, which can increase the local temperature.

In a word, rivers can increase the precipitation and air humidity in this area, relieve the high temperature in summer and raise the lowest temperature in winter.