Mexico · Caribbean
Cancún
Sea
83.3°F
Air
–
UV
–
Bathtub
Above 28°C
More like this
All beaches · Mexico
Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
75°F
79°F
82°F
86°F
90°F
93°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MinMin °F
8080.1
8080.0
8080.2
8181.1
8282.3
8383.1
8484.2
8584.5
8484.4
8484.4
8383.3
8281.5
AvgAvg °F
8180.5
8080.2
8180.6
8181.4
8383.0
8484.1
8584.7
8585.4
8585.3
8585.1
8483.6
8282.0
MaxMax °F
8181.0
8180.5
8181.0
8281.8
8483.7
8584.9
8585.4
8686.0
8686.2
8685.8
8483.8
8282.4
Warmest in August (85.4°F). Coldest in February (80.2°F). Comfortable for swimming year-round.
About Cancún
At the northeastern tip of the Yucatán Peninsula, Cancún's Zona Hotelera traces a 22-kilometre L-shaped barrier island that pens the Nichupté Lagoon against the Caribbean Sea. Toward the southern end, Playa Delfines spreads wide public sand below a clifftop mirador, while Playa Tortugas anchors a calmer northern cove where ferries leave for Isla Mujeres. Sea temperatures hold between 27 and 29 °C from May through October, with Cancún International Airport about 20 minutes from the strip.