Nouns ending in -ence are usually feminine.
The suffix forms abstract nouns, often from verbs.
Is présence masculine or feminine?
laprésence
The rule behind it
97.6% of -ence nouns are feminine
In context
La présence de tous les membres est requise.
Attendance is compulsory for all members.
Ne parle pas de ça en sa présence.
Don't talk about it in his presence.
La fête était animée, forte de sa présence.
The party was animated by her presence.