September weather forecast
Santiago de Maria, El Salvador

September marks the onset of more intense rainfall, with levels escalating yet again to reach 182mm (7.17") in Santiago de Maria. City dwellers and visitors are likely to encounter heavier clouds during this period. The slight drop in temperature contributes to a cozier atmosphere despite the persistent rain showers. Sunlight exposure is somewhat reduced due to the increased cloud coverage. Moreover, wind speed remains constant.

Temperature

As Santiago de Maria steps into September, the average high-temperature is measured at a still tropical 30.2°C (86.4°F), displaying minor differences from August's 31.3°C (88.3°F). Santiago de Maria cools down to an average low-temperature of 22.9°C (73.2°F) throughout the month of September.

Heat index

For most parts of September, the heat index is calculated to be a torrid 39°C (102.2°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In September, the average relative humidity in Santiago de Maria is 82%.

Rainfall

In Santiago de Maria, in September, it is raining for 27.5 days, with typically 182mm (7.17") of accumulated precipitation. Throughout the year, there are 206.2 rainfall days, and 1242mm (48.9") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of September, sunrise is at 05:42 and sunset at 18:04. On the last day of the month, sunrise is at 05:43 and sunset at 17:44 CST.

Sunshine

In Santiago de Maria, the average sunshine in September is 8.8h.

UV index

The months with the highest UV index in Santiago de Maria, El Salvador, are January through September and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 7 in September transforms into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.