April weather forecast
San Juan y Martínez, Cuba

April is a tropical spring month in San Juan y Martínez, Cuba, with temperature in the range of an average low of 21.7°C (71.1°F) and an average high of 30.3°C (86.5°F).

Temperature

April's presence marks an average high-temperature of a hot 30.3°C (86.5°F), subtly varied from March's 27.9°C (82.2°F). April nights experience a consistent temperature drop to an agreeable 21.7°C (71.1°F).

Heat index

In April, the average heat index is estimated at a torrid 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. 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. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

With an average relative humidity of 73%, April is the least humid month.

Rainfall

In April, the rain falls for 12.4 days. Throughout April, 36mm (1.42") of precipitation is accumulated. In San Juan y Martínez, during the entire year, the rain falls for 211.9 days and collects up to 823mm (32.4") of precipitation.

Daylight

The average length of the day in April in San Juan y Martínez, Cuba, is 12h and 41min.
On the first day of April in San Juan y Martínez, Cuba, sunrise is at 07:27 and sunset at 19:50. On the last day of the month, sunrise is at 07:03 and sunset at 20:01 CDT.

Sunshine

The average sunshine in April is 9.2h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during April translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.