May weather forecast
Santo Domingo, Cuba

The last month of the spring, May, is another tropical month in Santo Domingo, Cuba, with an average temperature ranging between max 30.8°C (87.4°F) and min 22.3°C (72.1°F).

Temperature

May's advent records an average high-temperature of a still hot 30.8°C (87.4°F), matching the reading from the prior month. May brings with it a nighttime average temperature of 22.3°C (72.1°F) in Santo Domingo, Cuba.

Heat index

The heat index value during May is calculated to be a torrid 39°C (102.2°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Santo Domingo, the average relative humidity in May is 76%.

Rainfall

May is the month with the most rainfall. Rain falls for 19.9 days and accumulates 84mm (3.31") of precipitation.

Daylight

In May, the average length of the day is 13h and 14min.
On the first day of May in Santo Domingo, sunrise is at 06:47 and sunset at 19:48. On the last day of the month, sunrise is at 06:36 and sunset at 20:01 CDT.

Sunshine

In May, the average sunshine in Santo Domingo is 10.6h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 7 in May leads to these recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.