Nouns ending in -ure are usually feminine.
The suffix often marks a result, state, or collective.
Is température masculine or feminine?
latempérature
The rule behind it
94.3% of -ure nouns are feminine
In context
Plus haut tu montes, plus la température chute.
The higher you go, the lower the temperature.
La température maximale d'hier était de 37°C.
Yesterday's maximum temperature was 37°C.
La température est aujourd'hui au-dessus du gel.
The temperature is above freezing today.