Wasps are generally more active during the warmth of the day. They get less active at night and dusk. So, you are more likely to be attacked by a swarm of wasps when it's daytime and the workers are out and about and more likely to see you as a potential threat.

Are wasps aggressive at night?

No, wasps generally don't attack at night, and they are less active after dark. They stay in their nests either tending to their offspring or taking care of their nests.

Is it normal for wasps to be out at night?

The sleep cycle of wasps is similar to our own, meaning that they are active throughout the day and sleep at night. Well to be exact, they are motionless, and a small amount may continue maintenance on the nest if needed. A common trick is to attack the wasp nest during the night.