March weather forecast
Nahuizalco, El Salvador

March, the first month of the spring in Nahuizalco, is still a tropical month, with an average temperature fluctuating between 21.5°C (70.7°F) and 31.6°C (88.9°F).

Temperature

Nahuizalco's weather in March indicates an average high-temperature of a still hot 31.6°C (88.9°F), nearly consistent with the 30.8°C (87.4°F) of February. During the month of March, the temperature falls to an average of 21.5°C (70.7°F).

Heat index

March's average heat index is appraised at a sweltering 37°C (98.6°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

With an average relative humidity of 64%, March is the least humid month.

Rainfall

In Nahuizalco, during March, the rain falls for 5.9 days and regularly aggregates up to 4mm (0.16") of precipitation. Throughout the year, in Nahuizalco, there are 166.9 rainfall days, and 832mm (32.76") of precipitation is accumulated.

Daylight

In March, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 06:14 and sunset at 18:07. On the last day of March, sunrise is at 05:54 and sunset at 18:10 CST.

Sunshine

The average sunshine in March is 10.2h.

UV index

The months with the highest UV index are January through May and July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during March translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.