September weather forecast
Cerca La Source, Haiti

The first month of the autumn, September, is also a hot month in Cerca La Source, Haiti, with an average temperature ranging between max 32°C (89.6°F) and min 20.5°C (68.9°F).

Temperature

The shift into September finds Cerca La Source at an average high-temperature of a still tropical 32°C (89.6°F), closely comparable to August's conditions. In the month of September, an average of 20.5°C (68.9°F) marks the low-temperature.

Heat index

In September, the heat index is evaluated at a blisteringly hot 42°C (107.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Cerca La Source, in September, it is raining for 20.8 days, with typically 95mm (3.74") of accumulated precipitation. Throughout the year, there are 192.9 rainfall days, and 647mm (25.47") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of the month, sunrise is at 06:32 and sunset at 19:01. On the last day of September, in Cerca La Source, sunrise is at 06:37 and sunset at 18:36 EDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

The months with the lowest UV index in Cerca La Source 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 threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.