September weather forecast
Ozatlán, El Salvador

The first month of the autumn, September, is also a hot month in Ozatlán, El Salvador, with an average temperature ranging between max 30.2°C (86.4°F) and min 22.9°C (73.2°F).

Temperature

During September, the average high-temperature is a still hot 30.2°C (86.4°F), maintaining a close resemblance to that of the preceding month. Ozatlán, in September, experiences an average temperature of 22.9°C (73.2°F) at night.

Heat index

During September, the heat index is estimated at a torrid 39°C (102.2°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Ozatlán, in September, it is raining for 27.5 days, with typically 182mm (7.17") of accumulated precipitation. In Ozatlán, El Salvador, during the entire year, the rain falls for 206.2 days and collects up to 1242mm (48.9") of precipitation.

Daylight

In Ozatlán, El Salvador, the average length of the day in September is 12h and 12min.
On the first day of September in Ozatlán, 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 Ozatlán, the average sunshine in September is 8.8h.

UV index

The months with the highest UV index in Ozatlán 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 risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 7 in September leads to these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.