September weather forecastModeste, Haiti

Weather in September

September, the first month of the autumn in Modeste, is also a moderately hot month, with an average temperature varying between 29.8°C (85.6°F) and 21.3°C (70.3°F).

Temperature

The beginning of September records an average high-temperature of a warm 29.8°C (85.6°F), marking a negligible difference from August's 30.9°C (87.6°F). An average low-temperature of 21.3°C (70.3°F) is observed in Modeste during the September nights.

Heat index

September's mean heat index is calculated to be a very hot 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In September, the average relative humidity in Modeste is 77%.

Rainfall

In Modeste, in September, during 22.4 rainfall days, 135mm (5.31") of precipitation is typically accumulated. In Modeste, during the entire year, the rain falls for 227.4 days and collects up to 904mm (35.59") of precipitation.

Daylight

The average length of the day in September in Modeste is 12h and 14min.
On the first day of the month, sunrise is at 06:33 and sunset at 19:02. On the last day of September, sunrise is at 06:38 and sunset at 18:36 EDT.

Sunshine

In Modeste, the average sunshine in September is 9.6h.

UV index

The months with the lowest UV index in Modeste are January through May, July through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Enhance your sun protection with tightly woven, yet airy clothing.