Water temperature in Cancun
This data the coastal Cancun ocean water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Current ocean temperature in Cancun
Water temperature in Cancun today is 85.6°F. Based on our historical data over a period of ten years, the warmest water in this day in the Caribbean Sea near Cancun was recorded in 2024 and was 86.7°F, and the coldest was recorded in 2013 at 83.5°F. Sea water temperature in Cancun is expected to drop to 85.1°F in the next 10 days. September average water temperature in Cancun is 85.1°F, the minimum temperature is 82.9°F, and the maximum is 87.3°F.
The swimming season in Cancun lasts from January to December, twelve months per year! During those months, Cancun water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Cancun in winter reaches 80.8°F, in spring 81.3°F, in summer the average temperature rises to 84.2°F, and in autumn it is 84.4°F.
Cancun water temperature now
| September 20, 2025 |
|---|
| today temp |
| 85.6°F |
| September 19, 2025 |
|---|
| yesterday temp |
| 85.5°F |
The ocean salinity in Cancun is 36.23‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Cancun for today
Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Cancun. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Cancun. Data in table shown for September 20, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
| 2' 5" | 2' 4" | 2' 3" | 2' 1" |
| 0.73 m | 0.72 m | 0.68 m | 0.64 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 0" | 1' 10" | 1' 9" | 1' 10" |
| 0.61 m | 0.57 m | 0.54 m | 0.55 m |
Surf report in Cancun
Cancun weather forecast
Current temperature and weather
Data in a table show Cancun temperature today (September 20, 2025). For more information and forecast for a few days, go to the weather forecast Cancun.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | |  |
| 81.7°F | 81.1°F | 80.8°F | 85.5°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 88.5°F | 87.6°F | 83.7°F | 82°F |
You may also be interested in other sections of our site for Cancun: Sunrise and Sunset, Tides
Cancun water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Cancun. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Cancun on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 80.4°F | 77.5°F | 82.4°F | hot |
| Ocean water temperature in Cancun in January | ||||
| February | 80.1°F | 77.7°F | 81.7°F | hot |
| Ocean water temperature in Cancun in February | ||||
| March | 80.2°F | 77.7°F | 82°F | hot |
| Ocean water temperature in Cancun in March | ||||
| April | 81.1°F | 78.6°F | 82.9°F | hot |
| Ocean water temperature in Cancun in April | ||||
| May | 82.6°F | 79.5°F | 85.1°F | hot |
| Ocean water temperature in Cancun in May | ||||
| June | 83.7°F | 81.5°F | 86°F | hot |
| Ocean water temperature in Cancun in June | ||||
| July | 84.2°F | 82.4°F | 86°F | hot |
| Ocean water temperature in Cancun in July | ||||
| August | 84.9°F | 83.5°F | 86.9°F | hot |
| Ocean water temperature in Cancun in August | ||||
| September | 85.1°F | 82.9°F | 87.3°F | hot |
| Ocean water temperature in Cancun in September | ||||
| October | 84.7°F | 81.7°F | 87.6°F | hot |
| Ocean water temperature in Cancun in October | ||||
| November | 83.1°F | 80.1°F | 85.6°F | hot |
| Ocean water temperature in Cancun in November | ||||
| December | 81.7°F | 77.7°F | 83.8°F | hot |
| Ocean water temperature in Cancun in December | ||||
Chart monthly average water temperature in Cancun
