May weather forecast
Guaymango, El Salvador

The last month of the spring, May, is another hot month in Guaymango, El Salvador, with temperature in the range of an average high of 30.4°C (86.7°F) and an average low of 23.3°C (73.9°F).

Temperature

Transitioning from April to May, Guaymango observes an average high-temperature of a still hot 30.4°C (86.7°F), differing subtly from the previous month. The nights of May in Guaymango anticipate an average low-temperature of 23.3°C (73.9°F).

Heat index

Throughout May, the heat index is calculated to be a very hot 38°C (100.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In May, in Guaymango, El Salvador, the rain falls for 22.9 days. Throughout May, 151mm (5.94") of precipitation is accumulated. In Guaymango, during the entire year, the rain falls for 166.9 days and collects up to 832mm (32.76") of precipitation.

Daylight

The average length of the day in May in Guaymango is 12h and 46min.
On the first day of the month, sunrise is at 05:37 and sunset at 18:15. On the last day of May, in Guaymango, sunrise is at 05:30 and sunset at 18:23 CST.

Sunshine

In May, the average sunshine is 10.9h.

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 hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 7 during May translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.