Scuba diving in Cancún
Diving in Cancún comes down to water temperature and calm seas. The most comfortable months are November to May, with highs around 87°F (30°C) and the sea at about 81°F (27°C).
Photo: Luka Peternel, CC BY-SA 4.0
Top scuba diving in Cancún
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Local operators and places
Names that come up for scuba diving in Cancún:
How to pick a good dive
- Non-certified divers can try a 'discover scuba' dive with an instructor; certified divers should bring their card and logbook.
- Ask about the water temperature and the wetsuit thickness provided for that month.
- Leave 18 to 24 hours between your last dive and a flight.
- Check group size per guide; four to six divers per guide is a good sign.
Cancún month by month
Averages for Cancún, 1991–2020; sea temperatures offshore, 1991–2020.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F (°C) | 83 (29) | 85 (29) | 87 (31) | 90 (32) | 92 (33) | 92 (34) | 93 (34) | 94 (34) | 92 (33) | 89 (32) | 86 (30) | 84 (29) |
| Low °F (°C) | 67 (19) | 67 (20) | 69 (21) | 72 (22) | 75 (24) | 76 (25) | 76 (25) | 76 (25) | 75 (24) | 74 (23) | 71 (22) | 68 (20) |
| Rainy days | 6 | 4 | 4 | 3 | 6 | 10 | 10 | 10 | 14 | 15 | 9 | 8 |
| Sea °F (°C) | 80 (27) | 80 (27) | 80 (27) | 81 (27) | 82 (28) | 83 (29) | 84 (29) | 85 (29) | 85 (29) | 84 (29) | 83 (28) | 81 (27) |
| Sunset (15th) | 6:26 pm | 6:45 pm | 6:57 pm | 7:06 pm | 7:18 pm | 7:30 pm | 7:32 pm | 7:18 pm | 6:51 pm | 6:23 pm | 6:06 pm | 6:08 pm |
Questions
When is the best time for scuba diving in Cancún?
November to May. Expect highs around 87°F (30°C) and the sea at about 81°F (27°C). The least comfortable months are September and October, when the sea drops to about 80°F.
How warm is the water in Cancún?
The sea averages 80°F (27°C) in February and 85°F (29°C) in August. It stays warm enough to swim in without a wetsuit all year.
Where can I book scuba diving in Cancún?
The tours above book on Viator. Compare group size, duration, what is included and the cancellation terms before you pick one.
