September weather forecast
Soyapango, El Salvador

September brings a slight dip in temperature and a decrease in rainfall to 150mm (5.91"), marking the gradual end of the wet season. Soyapango's weather during this period becomes somewhat unpredictable. Despite the decline, rainfall remains significant enough to influence daily activities and lifestyle decisions. The gradual shift towards drier months begins, though with sufficient rainfall to keep the lush, green landscapes thriving.

Temperature

September's advent presents an average high-temperature of a still hot 30.5°C (86.9°F), indicating a slight variation from the conditions of the previous month. During September, the temperature is averaged to a low of 20.9°C (69.6°F) at night.

Heat index

September's heat index is evaluated at a blistering 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. 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 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the highest humidity are September and October, with an average relative humidity of 82%.

Rainfall

In Soyapango, in September, it is raining for 26.5 days, with typically 150mm (5.91") of accumulated precipitation. In Soyapango, during the entire year, the rain falls for 196.7 days and collects up to 1216mm (47.87") of precipitation.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 05:45 and sunset at 18:07. On the last day of September, sunrise is at 05:45 and sunset at 17:46 CST.

Sunshine

In September, the average sunshine is 9h.

UV index

The months with the lowest UV index are May through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.