What is the weather like in Cancún vs Key West in December?

In December, Cancún averages 28°C high / 21°C low with about 63 mm of rain; Key West averages 26°C high / 20°C low with about 65 mm.

Cancún vs Key West in December

Cancún is the better pick in December — 87 vs 83 on SeasonMap's comfort score. Cancún is hot, a little rain, clean air, while Key West is warm, a little rain, clean air.

Cancún vs Key West — December climate, side by side

	Cancún	Key West
Comfort score	87/100 (A)	83/100 (A)
Feels-like high	30°C	26°C
Avg high / low	28° / 21°	26° / 20°
Rainfall	63 mm	65 mm
Rainy days	12	5
Humidity	75%	78%
Air quality (AQI)	42	43

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Cancún vs Key West in December — FAQ

Is December better in Cancún or Key West?: Cancún is the better pick in December — 87 vs 83 on SeasonMap's comfort score. Cancún is hot, a little rain, clean air, while Key West is warm, a little rain, clean air.
What is the weather like in Cancún vs Key West in December?: In December, Cancún averages 28°C high / 21°C low with about 63 mm of rain; Key West averages 26°C high / 20°C low with about 65 mm.