March weather forecast
Acajutla, El Salvador

The first month of the spring, March, is still a tropical month in Acajutla, El Salvador, with temperature in the range of an average low of 25°C (77°F) and an average high of 30.5°C (86.9°F).

Temperature

In March, the average high-temperature is essentially the same as in February - a still hot 30.5°C (86.9°F). In March, in Acajutla, the average low-temperature is 25°C (77°F).

Heat index

In March, the average heat index is calculated to be a torrid 35°C (95°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

January and March, with an average relative humidity of 65%, are the least humid months.

Rainfall

In Acajutla, it is raining for 6.5 days, with typically 6mm (0.24") of accumulated precipitation. Throughout the year, there are 183.3 rainfall days, and 831mm (32.72") of precipitation is accumulated.

Sea temperature

In Acajutla, the average seawater temperature in March is 28.8°C (83.8°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in March is 12h and 4min.
On the first day of March, sunrise is at 06:15 and sunset at 18:07. On the last day of the month, sunrise is at 05:55 and sunset at 18:11 CST.

Sunshine

In Acajutla, the average sunshine in March is 10.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Acajutla. The months with the lowest UV index in Acajutla, El Salvador, are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In March, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.