May weather forecast
San Juan Lalana, Mexico

The last month of the spring, May, is also a fiery hot month in San Juan Lalana, Mexico, with an average temperature fluctuating between 23.3°C (73.9°F) and 36°C (96.8°F).

Temperature

May, recording an average high temperature of 36°C (96.8°F) and a low temperature of 23.3°C (73.9°F), is San Juan Lalana's warmest month.

Heat index

For May, the heat index is computed to be a life-threatening hot 50°C (122°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The least humid month is May, with an average relative humidity of 63%.

Rainfall

In May, in San Juan Lalana, Mexico, the rain falls for 14.3 days. Throughout May, 56mm (2.2") of precipitation is accumulated. In San Juan Lalana, during the entire year, the rain falls for 209 days and collects up to 998mm (39.29") of precipitation.

Daylight

In May, the average length of the day in San Juan Lalana is 12h and 58min.
On the first day of May in San Juan Lalana, sunrise is at 5:56 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 6:54 pm CST.

Sunshine

With an average of 11h of sunshine, May has the most sunshine of the year in San Juan Lalana.

UV index

The months with the highest UV index in San Juan Lalana, Mexico, are March through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.