March weather forecast
San Salvador, El Salvador

March denotes the transition to slightly warmer nights in San Salvador. The daylight duration extends further, promising more sunshine and outdoor fun. A slight increase in rainfall is observed, but showers remain light and scattered. Despite the escalating rainfall to 5mm (0.2") over an average of 6.1 days, the atmosphere retains a comfortable degree of moisture. With the UV index persisting at 7 units, sunscreen remains an essential item.

Temperature

During the warmest month, March, temperatures average a high of 32.6°C (90.7°F) and a low of 21.1°C (70°F).

Heat index

The heat index in March is appraised at a very hot 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely vital to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

March is the least humid month, with an average relative humidity of 62%.

Rainfall

In San Salvador, during March, the rain falls for 6.1 days and regularly aggregates up to 5mm (0.2") of precipitation. In San Salvador, El Salvador, during the entire year, the rain falls for 187 days and collects up to 1106mm (43.54") of precipitation.

Daylight

In March, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 06:12 and sunset at 18:05. On the last day of March, in San Salvador, sunrise is at 05:52 and sunset at 18:08 CST.

Sunshine

The average sunshine in March is 10.5h.

UV index

February through April and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In March, the maximum UV index of 7 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.