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

The commencement of April introduces an average high-temperature of a still hot 32.5°C (90.5°F), closely mirroring the preceding month. San Salvador in April anticipates an average nighttime temperature of 22.8°C (73°F).

Heat index

The heat index for April is appraised at a blisteringly hot 41°C (105.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are quite important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

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

Rainfall

In San Salvador, in April, it is raining for 15.2 days, with typically 45mm (1.77") of accumulated precipitation. 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 April in San Salvador, sunrise is at 05:52 and sunset at 18:08. On the last day of the month, sunrise is at 05:35 and sunset at 18:12 CST.

Sunshine

The month with the most sunshine in San Salvador 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 7 in April leads to these recommendations:
Ward off overexposure. Defence against solar harm is crucial. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.