September weather forecast
Comasagua, El Salvador

In September, Comasagua experiences a lessening heat intensity coupled with reduced sunshine hours, a stark contrast to the peak sunlight of the summer months. The month of September registers 142mm (5.59") rainfall, a slight decrease from August's larger count, marking the continuation of a capricious rainy season. Despite reduced visibility due to cloud coverage, the infrequent rays of sunshine piercing through make for an exceptional sight. Comasagua’s weather during this month holds a uniquely exciting and unpredictable charm, every day carrying the potential for a different climate experience.

Temperature

Comasagua's September reports an average high-temperature of a moderately hot 29.8°C (85.6°F), exhibiting a minor difference from August. September in Comasagua is noted for a mean low-temperature of 21.5°C (70.7°F).

Heat index

In September, the average heat index is computed to be a very hot 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. 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.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

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

Rainfall

In Comasagua, in September, it is raining for 26.3 days, with typically 142mm (5.59") of accumulated precipitation. Throughout the year, in Comasagua, there are 187 rainfall days, and 1106mm (43.54") of precipitation is accumulated.

Daylight

The average length of the day in September in Comasagua is 12h and 12min.
On the first day of the month, sunrise is at 05:46 and sunset at 18:08. On the last day of September, sunrise is at 05:46 and sunset at 17:47 CST.

Sunshine

The average sunshine in September in Comasagua is 9.3h.

UV index

The months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.