September weather forecast
Thomonde, Haiti

By September, while the average maximum temperature drops to 32°C (89.6°F), the town of Thomonde still enjoys a warm climate. September marks the beginning of the region's transition from the peak rainy season as the rainfall declines to 95mm (3.74"). Though the cloud cover increases to 25%, the impact on sunlight isn't massively significant. Further, the extended daylight hours of 12.2 make the month favorable for day trips. Windsurfers would find the wind conditions to be quite suitable from September onwards.

Temperature

Thomonde, Haiti, measures an average high-temperature of a still hot 32°C (89.6°F) in September, nearly consistent with the preceding month. Throughout September, Thomonde experiences a low-temperature average of 20.5°C (68.9°F).

Heat index

September's heat index is appraised at a blisteringly hot 42°C (107.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Thomonde, during September, the rain falls for 20.8 days and regularly aggregates up to 95mm (3.74") of precipitation. In Thomonde, during the entire year, the rain falls for 192.9 days and collects up to 647mm (25.47") of precipitation.

Daylight

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

Sunshine

In Thomonde, the average sunshine in September is 9.8h.

UV index

The months with the lowest UV index are January through May, September through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 in September translates into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.