May weather forecast
Apopa, El Salvador

May is distinguished within Apopa by a sudden spike in rainfall to 267mm (10.51"), signaling the onslaught of the wet season. Despite the surge in rainfall, the dense clouds do not entirely impede the sun's glow, allowing for a still considerable amount of sunshine filling the days. The weather remains warm, accompanied by a slight increase in wind speed which add a refreshing touch to the humid conditions. May signifies the start of the wet season with an abrupt surge in precipitation but maintains balanced temperatures and a fair amount of sunshine.

Temperature

Apopa marks the onset of May with an average high-temperature of a still tropical 31.8°C (89.2°F), a subtle shift from April's 33.4°C (92.1°F). In the month of May, the temperature generally rests at an average low of 22.6°C (72.7°F).

Heat index

During May, the heat index is appraised at a blisteringly hot 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in May is 76%.

Rainfall

May is the month with the most rainfall. Rain falls for 26.9 days and accumulates 267mm (10.51") of precipitation.

Daylight

In Apopa, the average length of the day in May is 12h and 46min.
On the first day of May in Apopa, sunrise is at 05:34 and sunset at 18:12. On the last day of the month, sunrise is at 05:27 and sunset at 18:21 CST.

Sunshine

The average sunshine in May is 10.7h.

UV index

The months with the lowest UV index are May through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 6 transforms into these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.