May weather forecast
Chapulhuacán, Mexico

The last month of the spring, May, is another tropical month in Chapulhuacán, Mexico, with an average temperature varying between 19°C (66.2°F) and 32°C (89.6°F).

Temperature

In Chapulhuacán, May is the warmest month, with temperatures averaging a high of 32°C (89.6°F) and a low of 19°C (66.2°F).

Heat index

For most parts of May, the heat index is estimated at a blisteringly hot 41°C (105.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in May is 72%.

Rainfall

In Chapulhuacán, in May, it is raining for 13.2 days, with typically 50mm (1.97") of accumulated precipitation. In Chapulhuacán, during the entire year, the rain falls for 179.2 days and collects up to 664mm (26.14") of precipitation.

Daylight

In Chapulhuacán, the average length of the day in May is 13h and 9min.
On the first day of May, sunrise is at 6:04 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:13 pm CST.

Sunshine

In Chapulhuacán, Mexico, the average sunshine in May is 9.8h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.