April weather forecast
San Salvador, El Salvador

April signals the advent of substantial rainfall in San Salvador. Temperature variations remain minimal while daylight hours peak. Overcast conditions increase as the figure for cloud cover rises appreciably. During April, rainfall jumps dramatically to produce an average of 45mm (1.77") over an extended period of 15.2 days of rainfall, indicating a shift to wetter conditions. The city maintains an average daily maximum UV index of 7 units, often reaching its peak level during noontime.

Temperature

As March turns into April in San Salvador, the average high-temperatures rest at a still hot 32.5°C (90.5°F), showing a minor variation from the prior month. Throughout the month of April, the average temperature in San Salvador dips to an agreeable 22.8°C (73°F) at night.

Heat index

For April, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In San Salvador, the average relative humidity in April is 67%.

Rainfall

In San Salvador, in April, during 15.2 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, in San Salvador, there are 187 rainfall days, and 1106mm (43.54") of precipitation is accumulated.

Daylight

The average length of the day in April in San Salvador is 12h and 27min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:08. On the last day of April, sunrise is at 05:35 and sunset at 18:12 CST.

Sunshine

The month with the most sunshine is April, with an average of 11.4h of sunshine.

UV index

The months with the highest UV index in San Salvador are February through April and July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In April, an average UV index of 7 transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.