September weather forecast
Nueva Guadalupe, El Salvador

The first month of the autumn, September, is also a hot month in Nueva Guadalupe, El Salvador, with temperature in the range of an average low of 22.9°C (73.2°F) and an average high of 30.2°C (86.4°F).

Temperature

The transition into September notes an average high-temperature of a still tropical 30.2°C (86.4°F), revealing a mild distinction from the 31.3°C (88.3°F) in August. Throughout September, Nueva Guadalupe witnesses a consistent average low-temperature of 22.9°C (73.2°F).

Heat index

The heat index value for September is estimated at a very hot 39°C (102.2°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. 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. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Nueva Guadalupe, the average relative humidity in September is 82%.

Rainfall

In Nueva Guadalupe, El Salvador, in September, during 27.5 rainfall days, 182mm (7.17") of precipitation is typically accumulated. Throughout the year, in Nueva Guadalupe, El Salvador, there are 206.2 rainfall days, and 1242mm (48.9") of precipitation is accumulated.

Daylight

In Nueva Guadalupe, El Salvador, the average length of the day in September is 12h and 12min.
On the first day of September in Nueva Guadalupe, sunrise is at 05:41 and sunset at 18:04. On the last day of the month, sunrise is at 05:42 and sunset at 17:43 CST.

Sunshine

In September, the average sunshine is 8.8h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 7 in September transforms into this advice:
Shield from overexposure. Defense against sun-related harm is required. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.