September weather forecast
Jujutla, El Salvador

September, the first month of the autumn in Jujutla, is still a warm month, with temperature in the range of an average low of 20°C (68°F) and an average high of 28.8°C (83.8°F).

Temperature

The beginning of September records an average high-temperature of a still moderately hot 28.8°C (83.8°F), marking a negligible difference from August's 29.8°C (85.6°F). Jujutla experiences a mean temperature of 20°C (68°F) during September nights.

Heat index

The heat index value during September is estimated at a sweltering 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

September and October, with an average relative humidity of 84%, are the most humid months in Jujutla.

Rainfall

In Jujutla, during September, the rain falls for 22.6 days and regularly aggregates up to 116mm (4.57") of precipitation. Throughout the year, in Jujutla, El Salvador, there are 169.5 rainfall days, and 865mm (34.06") of precipitation is accumulated.

Daylight

In Jujutla, El Salvador, the average length of the day in September is 12h and 12min.
On the first day of September in Jujutla, sunrise is at 05:47 and sunset at 18:10. On the last day of the month, sunrise is at 05:48 and sunset at 17:49 CST.

Sunshine

The average sunshine in September in Jujutla is 9.4h.

UV index

January, February, May through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. 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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.