April weather forecast
San Luis, Cuba

April witnesses a substantial incline in rainfall, rising to 64mm (2.52") over 22 days, a clear shift from the drier conditions of March. Nonetheless, the daytime extends further and sunshine comes in plenty with an average of 11 hours daily. With the relative humidity averaging at 78%, the atmosphere retains ample moisture throughout the month. On a unique note, temperatures in April range from a low of 20.8°C (69.4°F) to a high of 29.7°C (85.5°F), indicative of the warming trend. Persistent easterly winds are a characteristic feature of April, although not as strong as in the preceding months.

Temperature

Stepping into April, San Luis records an average high-temperature of a still moderately hot 29.7°C (85.5°F), almost consistent with March. San Luis's temperature in April lowers to a consistent average of 20.8°C (69.4°F) during the nights.

Heat index

In April, the average heat index is evaluated at a fiery hot 36°C (96.8°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In San Luis, Cuba, the average relative humidity in April is 78%.

Rainfall

In San Luis, during April, the rain falls for 22 days and regularly aggregates up to 64mm (2.52") of precipitation. Throughout the year, in San Luis, there are 242.5 rainfall days, and 898mm (35.35") of precipitation is accumulated.

Daylight

In April, the average length of the day is 12h and 37min.
On the first day of the month, sunrise is at 06:56 and sunset at 19:17. On the last day of April, in San Luis, sunrise is at 06:34 and sunset at 19:27 CDT.

Sunshine

In April, the average sunshine is 11h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in April converts into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.