May weather forecast
Masahuat, El Salvador

The last month of the spring, May, is another tropical month in Masahuat, El Salvador, with temperature in the range of an average low of 20.7°C (69.3°F) and an average high of 31.1°C (88°F).

Temperature

Masahuat's weather in May, with an average high-temperature of a still tropical 31.1°C (88°F), subtly shifts from April's 33.2°C (91.8°F). The average temperature during May nights dips to an agreeable 20.7°C (69.3°F).

Heat index

The heat index in May is appraised at a scorching 40°C (104°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Masahuat, the average relative humidity in May is 77%.

Rainfall

The month with the most rainfall is May, when the rain falls for 23.7 days and typically aggregates up to 198mm (7.8") of precipitation.

Daylight

In Masahuat, the average length of the day in May is 12h and 47min.
On the first day of May, sunrise is at 05:35 and sunset at 18:14. On the last day of the month, sunrise is at 05:28 and sunset at 18:22 CST.

Sunshine

In Masahuat, the average sunshine in May is 10.3h.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 6 transforms into these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.