April weather forecast
Mariel, Cuba

As the calendar turns to April, Mariel's weather system rings in a more pronounced summer feel. The city puts up quite a show with engagingly warm temperatures and sunny skies promising long beach days. Pressure drops subtly to an average of 1015.3mb, indicating more unstable conditions. April witnesses an increase in rainfall to 22mm (0.87"), signaling the beginnings of a wet season. Coupled with the warming sea temperatures, residents and tourists are in for comfortable and typical Caribbean weather.

Temperature

April in Mariel begins with an average high-temperature of a still warm 29.4°C (84.9°F), reflecting close similarity to the preceding month. Throughout the nights in April, an average low-temperature of 22.8°C (73°F) is noted.

Heat index

April's average heat index is estimated at a tropical 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Consider that heat index readings are for situations in the shade and light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The average relative humidity in April in Mariel is 72%.

Rainfall

In Mariel, Cuba, in April, it is raining for 7.8 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, in Mariel, there are 144.5 rainfall days, and 485mm (19.09") of precipitation is accumulated.

Sea temperature

In Mariel, the average seawater temperature in April is 26.9°C (80.4°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The average length of the day in April is 12h and 42min.
On the first day of the month, sunrise is at 07:22 and sunset at 19:46. On the last day of April, sunrise is at 06:58 and sunset at 19:58 CDT.

Sunshine

In April, the average sunshine in Mariel is 9.5h.

UV index

The months with the highest UV index in Mariel are March through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In April, a regular UV index of 7 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be alert! The reflection of water and sand augments UV radiation intensity.