Acapulco
Mexico
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Acapulco, Mexico

Palm trees and a lovely white sandy beach in Acapulco, Mexico, with a distant view of the city structures and a mountain
Palm trees and a lovely white sandy beach in Acapulco, Mexico, with a distant view of the city structures and a mountain
The last month of the spring, May, is another tropical month in Acapulco, Mexico, with temperature in the range of an average low of 25.1°C (77.2°F) and an average high of 31.6°C (88.9°F).
The ideal sea water temperature of 29.5°C (85.1°F) and only 2.6 rainfall days, with 26.1mm (1") of accumulated rainfall, make May the best time for swimming and other water activities.

Temperature

In May, the average high-temperature in Acapulco is relatively the same as in April - a still tropical 31.6°C (88.9°F). In Acapulco, the average low-temperature is 25.1°C (77.2°F).

Heat index

The average heat index is calculated to a scorching 40.7°C (105.3°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like wind, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In May, the average relative humidity in Acapulco is 74%.

Rainfall

In Acapulco, Mexico, during May, the rain falls for 2.6 days and regularly aggregates up to 26.1mm (1") of precipitation. In Acapulco, during the entire year, the rain falls for 67.6 days and collects up to 1336.8mm (52.6") of precipitation.

Sea temperature

In Acapulco, Mexico, 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

The average length of the day in May is 12.9h.

Sunshine

In May, the average sunshine in Acapulco, Mexico, is 8.1h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Acapulco. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 12 in May interpret into the following advice:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Acapulco?

In May, in Acapulco, the average high-temperature is 31.6°C (88.9°F), and the average low-temperature is 25.1°C (77.2°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines air temperature and relative humidity, in May is evaluated at 40.7°C (105.3°F).

What is the average humidity in May in Acapulco?

In Acapulco, the average relative humidity in May is 74%.

How much does it rain in Acapulco in May?

In Acapulco, Mexico, during May, the rain falls for 2.6 days and regularly aggregates up to 26.1mm (1") of precipitation.

How warm is the water in May in Acapulco?

In May, the average sea temperature is 29.5°C (85.1°F). 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.

What is the average length of the day in May in Acapulco?

In Acapulco, the average length of the day in May is 12.9h.

How long on average sun shines in May in Acapulco?

In May, the average sunshine in Acapulco is 8.1h.

When is the highest UV index in Acapulco?

Months with the highest UV index in Acapulco are March through September, with an average maximum UV index of 12.

How high is the UV index in May in Acapulco?

The average daily maximum UV index in May in Acapulco, Mexico, is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in May - Acapulco, Mexico
  • Average high temperature in May: 31.6°C

The warmest month (with the highest average high temperature) is July (32.3°C).
Months with the lowest average high temperature are January, February and March (30.4°C).

  • Average low temperature in May: 25.1°C

The month with the highest average low temperature is June (25.2°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).

Average humidity in May - Acapulco, Mexico
  • Average humidity in May: 74%

The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (72%).

Average rainfall in May - Acapulco, Mexico
  • Average rainfall in May: 26.1mm

The wettest month (with the highest rainfall) is September (309.6mm).
The driest month (with the lowest rainfall) is March (2.2mm).

Average rainfall days in May - Acapulco, Mexico
  • Average rainfall days in May: 2.6 days

The month with the highest number of rainy days is September (14.3 days).
The month with the lowest number of rainy days is April (0.2 days).

Average sea temperature in May - Acapulco, Mexico
  • Average sea temperature in May: 29.5°C

The best month for swimming (with the highest average sea temperature) is August (30°C).
The coldest month (with the lowest average sea temperature) is March (27.7°C).

Average daylight in May / Average sunshine in May - Acapulco, Mexico
  • Average daylight in May: 12.9h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in May: 8.1h

The month with most sunshine is March (Average sunshine: 9.3h).
The month with least sunshine is September (Average sunshine: 6.5h).

Average UV index in May - Acapulco, Mexico
  • Average UV index in May: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).