April weather forecast
Izalco, El Salvador

April, like March, is another tropical spring month in Izalco, El Salvador, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 31.8°C (89.2°F).

Temperature

April, noted for its average high-temperature of 31.8°C (89.2°F) and an average low-temperature of 22.8°C (73°F), is considered the warmest month.

Heat index

The heat index in April is evaluated at a fiery hot 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Izalco, the average relative humidity in April is 68%.

Rainfall

In Izalco, during April, the rain falls for 13.3 days and regularly aggregates up to 28mm (1.1") of precipitation. In Izalco, during the entire year, the rain falls for 166.9 days and collects up to 832mm (32.76") of precipitation.

Daylight

In April, the average length of the day is 12h and 27min.
On the first day of April, sunrise is at 05:53 and sunset at 18:10. On the last day of the month, sunrise is at 05:37 and sunset at 18:14 CST.

Sunshine

With an average of 11.5h of sunshine, April has the most sunshine of the year in Izalco.

UV index

The months with the highest UV index in Izalco are January through May and July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 7 in April suggests the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.