August weather forecast
San Andres, El Salvador

August, the last month of the summer in San Andres, is also a hot month, with an average temperature ranging between min 20.8°C (69.4°F) and max 31.8°C (89.2°F).

Temperature

The advent of August observes an average high-temperature of a still tropical 31.8°C (89.2°F), nearly identical to July's 32°C (89.6°F). August nights in San Andres observe an average temperature dip to a pleasant 20.8°C (69.4°F).

Heat index

The heat index for August is appraised at a blisteringly hot 43°C (109.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In August, the average relative humidity in San Andres, El Salvador, is 79%.

Rainfall

In San Andres, during August, the rain falls for 26.6 days and regularly aggregates up to 144mm (5.67") of precipitation. Throughout the year, there are 192.2 rainfall days, and 1062mm (41.81") of precipitation is accumulated.

Daylight

In August, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 05:42 and sunset at 18:25. On the last day of August, in San Andres, sunrise is at 05:45 and sunset at 18:09 CST.

Sunshine

The average sunshine in August in San Andres is 10.6h.

UV index

January, June through December, with an average maximum UV index of 6, are months with the lowest UV index in San Andres. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.