1. early in the morning Zenithal rainfall
The sun heats up the tropical rainforest in the morning.
Climate in the tropical rainforest

2. late in the morning Zenithal rainfall
The hot air rises and the water evaporates.
Climate in the tropical rainforest

3. early afternoon Zenithal rainfall The air cools down
and the water vapour condenses.
 There are clouds.
Climate in the tropical rainforest

4. late afternoon Zenithal rainfall
Now there are thunderstorms and it starts to rain.
Climate in the tropical rainforest