May weather forecast
Plan de Arroyos, Mexico

The last month of the spring, May, is another hot month in Plan de Arroyos, Mexico, with an average temperature ranging between max 32.1°C (89.8°F) and min 20.8°C (69.4°F).

Temperature

May is the warmest month of the year, registering average temperatures as high as 32.1°C (89.8°F) and as low as 20.8°C (69.4°F).

Heat index

For May, the heat index is calculated to be a blisteringly hot 40°C (104°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In May, the average relative humidity is 69%.

Rainfall

In May, the rain falls for 10.3 days. Throughout May, 33mm (1.3") of precipitation is accumulated. In Plan de Arroyos, during the entire year, the rain falls for 167.8 days and collects up to 658mm (25.91") of precipitation.

Daylight

In Plan de Arroyos, the average length of the day in May is 13h and 5min.
On the first day of May in Plan de Arroyos, sunrise is at 5:58 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 7:03 pm CST.

Sunshine

With an average of 11.2h of sunshine, May has the most sunshine of the year.

UV index

The months with the highest UV index are April through July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 7 during May translates into the following guidance:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.