September weather forecast
San Rafael Obrajuelo, El Salvador

The first month of the autumn, September, is still a hot month in San Rafael Obrajuelo, El Salvador, with an average temperature ranging between max 30.4°C (86.7°F) and min 21.5°C (70.7°F).

Temperature

San Rafael Obrajuelo's shift into September sets the average high-temperature at a still tropical 30.4°C (86.7°F), a figure that deviates only slightly from August's 31.6°C (88.9°F). An average temperature of 21.5°C (70.7°F) marks the nights in San Rafael Obrajuelo in September.

Heat index

During September, the heat index is calculated to be an extremely hot 40°C (104°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The most humid month in San Rafael Obrajuelo, El Salvador, is September, with an average relative humidity of 84%.

Rainfall

In San Rafael Obrajuelo, in September, it is raining for 28.7 days, with typically 188mm (7.4") of accumulated precipitation. Throughout the year, in San Rafael Obrajuelo, El Salvador, there are 216.4 rainfall days, and 1164mm (45.83") of precipitation is accumulated.

Daylight

In San Rafael Obrajuelo, El Salvador, the average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 05:44 and sunset at 18:06. On the last day of September, in San Rafael Obrajuelo, sunrise is at 05:45 and sunset at 17:45 CST.

Sunshine

In September, the average sunshine in San Rafael Obrajuelo is 8.3h.

UV index

The months with the lowest UV index in San Rafael Obrajuelo are August through November, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.