May weather forecast
Guanabacoa, Cuba

The last month of the spring, May, is another tropical month in Guanabacoa, Cuba, with temperature in the range of an average low of 23.1°C (73.6°F) and an average high of 31.1°C (88°F).

Temperature

During May, the average high-temperature is a still tropical 31.1°C (88°F), maintaining a close resemblance to that of the preceding month. Throughout May, an average nighttime temperature of 23.1°C (73.6°F) is experienced in Guanabacoa.

Heat index

Throughout May, the heat index is estimated at a fiery hot 39°C (102.2°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Guanabacoa, the average relative humidity in May is 73%.

Rainfall

In Guanabacoa, in May, during 19.2 rainfall days, 107mm (4.21") of precipitation is typically accumulated. In Guanabacoa, Cuba, during the entire year, the rain falls for 204.8 days and collects up to 802mm (31.57") of precipitation.

Daylight

The average length of the day in May is 13h and 16min.
On the first day of May in Guanabacoa, sunrise is at 06:55 and sunset at 19:56. On the last day of the month, sunrise is at 06:42 and sunset at 20:10 CDT.

Sunshine

In May, the average sunshine in Guanabacoa is 10.5h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index in Guanabacoa, Cuba. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 in May translates into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.