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

The arrival of September records an average high-temperature of a still hot 30.5°C (86.9°F), closely related to the 31.6°C (88.9°F) observed in August. Soyapango, during September, witnesses an average low-temperature of 20.9°C (69.6°F).

Heat index

The heat index value during September is calculated to be a blistering 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

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

Rainfall

In September, the rain falls for 26.5 days. Throughout September, 150mm (5.91") of precipitation is accumulated. Throughout the year, there are 196.7 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

In September, the average length of the day in Soyapango 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 Soyapango, the average sunshine in September 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 reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.