May weather forecast
Tecapán, El Salvador

The last month of the spring, May, is another tropical month in Tecapán, El Salvador, with an average temperature varying between 24.3°C (75.7°F) and 31.2°C (88.2°F).

Temperature

As Tecapán, El Salvador, steps into May, the average high-temperature is measured at a still tropical 31.2°C (88.2°F), displaying minor differences from April's 32.8°C (91°F). Throughout the month of May, the nighttime temperature dips to an average of 24.3°C (75.7°F).

Heat index

During May, the heat index is calculated to be a blistering 40°C (104°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in May is 76%.

Rainfall

In May, the rain falls for 25.7 days. Throughout May, 206mm (8.11") of precipitation is accumulated. In Tecapán, during the entire year, the rain falls for 206.2 days and collects up to 1242mm (48.9") of precipitation.

Daylight

The average length of the day in May is 12h and 45min.
On the first day of May, sunrise is at 05:32 and sunset at 18:09. On the last day of the month, sunrise is at 05:25 and sunset at 18:17 CST.

Sunshine

In May, the average sunshine is 10.4h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.