May weather forecast
Playa Santa Lucia, Cuba

May, the last month of the spring in Playa Santa Lucia, is a tropical month, with an average temperature fluctuating between 23.8°C (74.8°F) and 30.1°C (86.2°F).

Temperature

In Playa Santa Lucia, Cuba, the average high-temperature in May is relatively the same as in April - a tropical 30.1°C (86.2°F). In Playa Santa Lucia, the average low-temperature is 23.8°C (74.8°F).

Heat index

In May, the average heat index is estimated at a sweltering 37°C (98.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With 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 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like metabolic differences, pregnancy, wind, 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Playa Santa Lucia, Cuba, during May, the rain falls for 20.2 days and regularly aggregates up to 85mm (3.35") of precipitation. In Playa Santa Lucia, during the entire year, the rain falls for 203.6 days and collects up to 608mm (23.94") of precipitation.

Daylight

The average length of the day in May in Playa Santa Lucia is 13h and 10min.
On the first day of the month, sunrise is at 06:36 and sunset at 19:33. On the last day of May, sunrise is at 06:25 and sunset at 19:46 CDT.

Sunshine

The average sunshine in May in Playa Santa Lucia is 10.1h.

UV index

The months with the highest UV index in Playa Santa Lucia are April through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.