Mexico · Caribbean
Cancún
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Climate · monthly averages
Sea temperature by month
30-year averages (1996–2025). Min/Max are typical daily lows and highs, not record extremes.
72°F
75°F
79°F
82°F
86°F
90°F
January
80.0°F(79°F–81°F)
February
79.6°F(78°F–80°F)
March
79.8°F(79°F–81°F)
April
80.7°F(80°F–82°F)
May
82.3°F(81°F–83°F)
June
83.3°F(82°F–85°F)
July
84.0°F(83°F–85°F)
August
84.7°F(84°F–86°F)
September
84.8°F(84°F–86°F)
October
84.1°F(83°F–85°F)
November
82.5°F(81°F–84°F)
December
81.1°F(80°F–82°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 | 7978.7 | 7878.4 | 7978.6 | 8079.6 | 8181.1 | 8282.3 | 8383.0 | 8483.6 | 8483.9 | 8383.2 | 8181.4 | 8079.6 |
| AvgAvg °F | 8080.0 | 8079.6 | 8079.8 | 8180.7 | 8282.3 | 8383.3 | 8484.0 | 8584.7 | 8584.8 | 8484.1 | 8382.5 | 8181.1 |
| MaxMax °F | 8181.0 | 8080.4 | 8180.9 | 8281.6 | 8383.2 | 8584.5 | 8585.0 | 8685.8 | 8685.7 | 8585.2 | 8483.8 | 8282.3 |
Warmest in September (84.8°F). Coldest in February (79.6°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.