April weather forecast
Santa Ana, El Salvador

April marks the onset of a warmer season, with temperatures, humidity and rainfall all on the rise. Beach-goers will find the weather particularly favorable, given the extended daylight hours. Despite the rising temperatures, the wind speeds tend to be milder contributing to a more consistent air. Cloud coverage takes a slight increase introducing frequent but milder showers. April witnesses a significant jump in rainfall, accumulating to 51mm (2.01") as compared to 9mm (0.35") in March.

Temperature

In Santa Ana, the average temperatures in April are the highest, with a peak at 33.2°C (91.8°F) and a low of 20.3°C (68.5°F).

Heat index

The heat index for April is evaluated at a blistering 42°C (107.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in April is 66%.

Rainfall

In Santa Ana, in April, during 14.8 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, in Santa Ana, there are 181.4 rainfall days, and 1055mm (41.54") of precipitation is accumulated.

Daylight

In April, the average length of the day is 12h and 28min.
On the first day of April in Santa Ana, sunrise is at 05:53 and sunset at 18:10. On the last day of the month, sunrise is at 05:36 and sunset at 18:14 CST.

Sunshine

April has the most sunshine of the year in Santa Ana, with an average of 11.3h of sunshine.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the highest UV index in Santa Ana. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 6 in April leads to these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.