May weather forecastSan Luis, Cuba

Weather in May

May in San Luis brings forth pronounced warmth with daytime temperature peaks soaring to 30°C (86°F). The shift from the predominantly cooler period is well corroborated with this month's 13.1 daylight hours. Simultaneously, rainfall becomes markedly pronounced, peaking at 133mm (5.24") for the year, with wet conditions occurring over 24.9 days. The added moisture in the atmosphere results in high humidity levels, equal to 80%. Coupling the high temperatures and intense rainfall, the verdant landscape of the city starts to flourish.

Temperature

At the start of May, San Luis's average high-temperature reaches a hot 30°C (86°F), subtly different from the preceding month. In May, the temperature in San Luis drops to an average of 21.4°C (70.5°F) at night.

Heat index

The heat index for May is estimated at a fiery hot 38°C (100.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In San Luis, the average relative humidity in May is 80%.

Rainfall

May is the month with the most rainfall. Rain falls for 24.9 days and accumulates 133mm (5.24") of precipitation.

Daylight

In May, the average length of the day is 13h and 6min.
On the first day of the month, sunrise is at 06:33 and sunset at 19:27. On the last day of May, sunrise is at 06:23 and sunset at 19:39 CDT.

Sunshine

In San Luis, Cuba, the average sunshine in May is 10.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 7 in May leads to these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.