May weather forecast
Tecomán, Mexico

The last month of the spring, May, is also a hot month in Tecomán, Mexico, with temperature in the range of an average high of 31.8°C (89.2°F) and an average low of 21.8°C (71.2°F).

Temperature

The onset of May marks an average high-temperature of a still tropical 31.8°C (89.2°F), hardly differing from April's 31.5°C (88.7°F). The average nighttime temperature in Tecomán lowers to a pleasant 21.8°C (71.2°F) throughout May.

Heat index

The heat index for May is computed to be a torrid 38°C (100.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Tecomán, the average relative humidity in May is 66%.

Rainfall

Months with rainfall are January through March, May through December. May is the first month it rains. Throughout May, in the average 2.9 rainfall days, it receives 7mm (0.28") of precipitation. Throughout the year, there are 95.4 rainfall days, and 425mm (16.73") of precipitation is accumulated.

Daylight

In Tecomán, the average length of the day in May is 13h and 2min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:17 pm. On the last day of May, sunrise is at 6:17 am and sunset at 7:29 pm CST.

Sunshine

The average sunshine in May in Tecomán is 9.8h.

UV index

The months with the highest UV index are April through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during May leads to these instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.