May weather forecast
Puerto Morelos, Mexico

Weather in May deviates sharply from the previous month, with a significant rise in rainfall reaching 86mm (3.39"). Temperatures continue their upward trajectory, reaching their peak towards the end of the month. Despite the increased rainfall, the sun continues to dominate the skies, limiting the overcast conditions. Also, humidity scales up a bit, bringing a stickier climate. The sea temperature also rises, drawing many to indulge in water activities, notwithstanding the looming rains.

Temperature

Puerto Morelos's weather in May displays an average high-temperature of a still moderately hot 29.9°C (85.8°F), showing minor disparity from April's 28.9°C (84°F). A steady low-temperature average of 25.8°C (78.4°F) is logged in Puerto Morelos during May, reflecting a modest dip from daytime readings.

Heat index

The heat index for May is estimated at a torrid 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Puerto Morelos, in May, during 17.9 rainfall days, 86mm (3.39") of precipitation is typically accumulated. Throughout the year, there are 227.4 rainfall days, and 1021mm (40.2") of precipitation is accumulated.

Sea temperature

In Puerto Morelos, the average seawater temperature in May is 28°C (82.4°F).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.

Daylight

In Puerto Morelos, the average length of the day in May is 13h and 8min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:12 pm. On the last day of May, sunrise is at 6:05 am and sunset at 7:24 pm EST.

Sunshine

The average sunshine in May is 8.8h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index in Puerto Morelos. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 7 in May suggests the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.