May weather forecast
Izalco, El Salvador

May, the last month of the spring in Izalco, is another hot month, with an average temperature varying between 30.4°C (86.7°F) and 23.3°C (73.9°F).

Temperature

Izalco transitions into May recording an average high-temperature of a still hot 30.4°C (86.7°F), closely aligning with the preceding month's temperature. Throughout the nights in May, an average low-temperature of 23.3°C (73.9°F) is noted in Izalco.

Heat index

The heat index for May is evaluated at a fiery hot 38°C (100.4°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In May, the average relative humidity in Izalco, El Salvador, is 76%.

Rainfall

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

Daylight

In Izalco, the average length of the day in May is 12h and 46min.
On the first day of the month, sunrise is at 05:36 and sunset at 18:14. On the last day of May, in Izalco, sunrise is at 05:29 and sunset at 18:23 CST.

Sunshine

The average sunshine in May is 10.9h.

UV index

January through May and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.