Often used in botanical contexts to describe plants that bloom late.
Su llegada serotino causó inconvenientes en la planificación del evento, por lo que tuvimos que adaptarnos.
His late arrival caused inconveniences in the event planning, so we had to adapt.
El tren llegó serotino a la estación, lo que causó molestias a los pasajeros que esperaban.
The train arrived late at the station, which caused discomfort to the waiting passengers.