April weather forecast
Santo Domingo, Cuba

April is a hot spring month in Santo Domingo, Cuba, with an average temperature fluctuating between 30.8°C (87.4°F) and 21.1°C (70°F).

Temperature

The ushering in of April brings an average high-temperature of a tropical 30.8°C (87.4°F), closely mirroring the 28.3°C (82.9°F) of March. Santo Domingo registers a consistent average low-temperature of 21.1°C (70°F) during April.

Heat index

For most parts of April, the heat index is calculated to be a very hot 38°C (100.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

April is the least humid month in Santo Domingo, with an average relative humidity of 72%.

Rainfall

In Santo Domingo, in April, during 14.1 rainfall days, 30mm (1.18") of precipitation is typically accumulated. In Santo Domingo, during the entire year, the rain falls for 187.4 days and collects up to 558mm (21.97") of precipitation.

Daylight

In April, the average length of the day in Santo Domingo is 12h and 41min.
On the first day of the month, sunrise is at 07:12 and sunset at 19:36. On the last day of April, sunrise is at 06:48 and sunset at 19:47 CDT.

Sunshine

The average sunshine in April is 9.8h.

UV index

The months with the highest UV index in Santo Domingo are April through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In April, the average maximum UV index of 7 translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.