April weather forecast
Santiago de Cuba, Cuba

April weather brings forth the onset of the rainier part of the year in Santiago de Cuba, with a more extensive green landscape burgeoning across the city. This month is marked by increasing humidity and a corresponding rise in atmospheric pressure. This minor transformation does compromise neither sea-related activities, with sea temperatures reaching 27.1°C (80.8°F), nor day-to-day activities. The combination of moderate wind speeds and clear visibility provides ideal conditions for city touring. Prospects of a heightened rainfall season signal the approach of May.

Temperature

In April, Santiago de Cuba's weather conditions record an average high-temperature of a still warm 29.8°C (85.6°F), demonstrating little divergence from the preceding month. Nighttime temperatures in Santiago de Cuba hover around an average low of 20.9°C (69.6°F) in April.

Heat index

The heat index value during April is calculated to be a sweltering 37°C (98.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Santiago de Cuba, the average relative humidity in April is 78%.

Rainfall

In Santiago de Cuba, in April, it is raining for 17.5 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Santiago de Cuba, there are 183.7 rainfall days, and 516mm (20.31") of precipitation is accumulated.

Sea temperature

In Santiago de Cuba, Cuba, in April, the average water temperature is 27.1°C (80.8°F).
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

The average length of the day in April in Santiago de Cuba 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 Santiago de Cuba, sunrise is at 06:34 and sunset at 19:26 CDT.

Sunshine

The average sunshine in April is 11h.

UV index

The months with the highest UV index in Santiago de Cuba are April through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 during April translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be attentive! The UV exposure is heightened with reflections from sand and water.