May weather forecast
Nuevo Cuscatlán, El Salvador

As Nuevo Cuscatlán moves into the heart of the wet season, May continues to experience significant rainfall. The temperatures become more modest, attributing to the cooling effect of the rains. Despite May carrying over the trends of the wet season from April, daylight hours are at their peak. Cloud coverage increases slightly, screening the city from harsh sunshine. Toward the end of May, daylight hours begin to decline as we approach June.

Temperature

The arrival of May sees a recorded average high-temperature of a still tropical 30.9°C (87.6°F), showing little divergence from the previous month's conditions. During May, Nuevo Cuscatlán records an average temperature of 22.7°C (72.9°F) at night.

Heat index

In May, the average heat index is computed to be a very hot 39°C (102.2°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In May, the average relative humidity is 76%.

Rainfall

May is the month with the most rainfall. Rain falls for 25.5 days and accumulates 234mm (9.21") of precipitation.

Daylight

The average length of the day in May in Nuevo Cuscatlán is 12h and 46min.
On the first day of the month, sunrise is at 05:35 and sunset at 18:13. On the last day of May, sunrise is at 05:28 and sunset at 18:21 CST.

Sunshine

In Nuevo Cuscatlán, the average sunshine in May is 10.8h.

UV index

The months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in May transforms into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.