May weather forecast
Chumatlan, Mexico

May, the last month of the spring in Chumatlan, is another hot month, with an average temperature fluctuating between 21.9°C (71.4°F) and 32.3°C (90.1°F).

Temperature

May tends to be the warmest month, with temperatures averaging a daily high of 32.3°C (90.1°F) and a low of 21.9°C (71.4°F).

Heat index

May's mean heat index is evaluated at an extremely hot 43°C (109.4°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

April and May, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Chumatlan, Mexico, in May, during 12.8 rainfall days, 56mm (2.2") of precipitation is typically accumulated. Throughout the year, there are 196.2 rainfall days, and 978mm (38.5") of precipitation is accumulated.

Daylight

In May, the average length of the day in Chumatlan is 13h and 6min.
On the first day of the month, sunrise is at 6:00 am and sunset at 6:54 pm. On the last day of May, in Chumatlan, sunrise is at 5:49 am and sunset at 7:06 pm CST.

Sunshine

In May, the average sunshine is 10.3h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Chumatlan. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.