Why is it die Nässe?

Nässe ends in -e, and most nouns ending in -e are feminine: in a German dictionary, 79% of them take die.

All nouns ending in -e
Sense 1
die

Meaning

[1] Wet quality (the environment), strong moisture

[1] nasse Beschaffenheit (der Umgebung), starke Feuchtigkeit

Examples

[1] Caution is offered here in the event of wetness

[1] Bei Nässe ist hier Vorsicht geboten.

Declension

1 Singular Plural
Nominativ die Nässe —
Genitiv der Nässe —
Dativ der Nässe —
Akkusativ die Nässe —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary