May weather forecast
Acapulco, Mexico

May brings a significant change in the weather patterns of Acapulco. With rain becoming frequent, this month marks the beginning of the wet season in this coastal city. However, the increase in precipitation still does not overshadow the city’s warm and sunny disposition. Despite the rainy spell, temperatures remain stable, marking a favorable period for local festivities. The sea retains a comfortable warmth, encouraging marine activities.

Temperature

May is the warmest month of the year in Acapulco, registering average temperatures as high as 31.3°C (88.3°F) and as low as 25°C (77°F).

Heat index

For most parts of May, the heat index is evaluated at a very hot 37°C (98.6°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

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

Rainfall

Months with rainfall in Acapulco are January through March, May through December. May is the first month it rains in Acapulco, Mexico. Throughout May, in the average 9.3 rainfall days, it receives 18mm (0.71") of precipitation. In Acapulco, during the entire year, the rain falls for 144.3 days and collects up to 800mm (31.5") of precipitation.

Sea temperature

In Acapulco, the average seawater temperature in May is 29.5°C (85.1°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In May, the average length of the day is 12h and 56min.
On the first day of May in Acapulco, sunrise is at 6:13 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:09 pm CST.

Sunshine

In May, the average sunshine in Acapulco is 9.8h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Acapulco. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Acapulco. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice! The reflection of water and sand increases the UV radiation significantly.