All data are in degrees Fahrenheit

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Water temperature in Cancún

Detailed information about the current water temperature in Cancún. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Cancún now

83.4

°F

May 12, 21:46

Trend:

increasing

Yesterday:

83.0°F

Tomorrow:

83.6°F

Sunrise:

06:11

Sunset:

19:17

Day Length:

13 h. 6 min.

Cancún in May

Minimum:

79.5°F

Average:

80.0°F

Maximum:

80.9°F

Sea water temperature in Cancún today

As of now, in Cancún, the water temperature is 83.4°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 1.3°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 82.7°F on 2021, while the historical minimum was 81.7°F on 2020.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 83.8°F, with minimum temperature starting at 83.6°F, while the maximum might reach 84.1°F.

Daily water temperature in Cancún

Date Current Year

actual* / forecast**

last year 10 years average
Apr 28 82.0°F 81.2°F 81.5°F
Apr 29 81.8°F 81.5°F 81.6°F
Apr 30 82.5°F 81.7°F 81.7°F
May 1 82.4°F 82.1°F 81.6°F
May 2 81.9°F 81.7°F 81.6°F
May 3 82.0°F 81.6°F 81.7°F
May 4 81.6°F 81.6°F 81.8°F
May 5 82.1°F 81.6°F 81.9°F
May 6 81.2°F 81.9°F 81.9°F
May 7 81.9°F 82.2°F 82.0°F
May 8 81.9°F 82.1°F 82.1°F
May 9 82.5°F 82.3°F 82.3°F
May 10 83.0°F 82.3°F 82.3°F
May 11 83.0°F 82.2°F 82.2°F
May 12 83.4°F 82.2°F 82.2°F
May 13 83.6°F 81.4°F 82.3°F
May 14 83.6°F 82.1°F 82.3°F
May 15 83.8°F 82.3°F 82.5°F
May 16 83.9°F 82.8°F 82.7°F
May 17 84.0°F 83.3°F 82.8°F
May 18 84.1°F 83.2°F 82.8°F
May 19 84.0°F 82.7°F 82.7°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Cancún by month

In Cancún, the water temperature is comfortable for swimming all year round.
The warmest water in Cancún was recorded on August 12, 2023, reaching a 87.1°F. While the coldest temperature occurred on February 8, 2026, dipping to 77.7°F. The average readings by season are 80.0°F in Winter, 81.0°F in Spring, 84.4°F in Summer, and 84.0°F in Autumn.