May weather forecast
Vinales, Cuba

May in Vinales denotes a transition to a more tropical climate, characterized by hot temperatures, high humidity, and torrential rains. A striking feature dictated by the data for this month is an upsurge in rainfall amounts that reach 90mm (3.54"), nearly thrice that of April. The sun continues to shine brightly for up to 10.4 hours per day despite the afternoon thunderstorms, commonly witnessed this month. Alongside this, the temperatures maintain their highs, making it one of the warmest months. Beneficially, steady breezes offer some relief from the heat and humidity.

Temperature

May in Vinales denotes a minimal variation in the average high-temperature to a still hot 30.7°C (87.3°F) from April's 30.3°C (86.5°F). During May, Vinales observes a consistent average nighttime temperature of 22.9°C (73.2°F).

Heat index

The heat index in May is calculated to be a fiery hot 38°C (100.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Vinales, the average relative humidity in May is 75%.

Rainfall

In Vinales, during May, the rain falls for 21.1 days and regularly aggregates up to 90mm (3.54") of precipitation. Throughout the year, there are 211.9 rainfall days, and 823mm (32.4") of precipitation is accumulated.

Daylight

The average length of the day in May in Vinales is 13h and 14min.
On the first day of the month, sunrise is at 07:01 and sunset at 20:02. On the last day of May, sunrise is at 06:49 and sunset at 20:15 CDT.

Sunshine

May and June, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Vinales. 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: The maximum daily UV index, 7 in May, converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.