September weather forecastFond Blanc, Haiti

Weather in September

The first month of the autumn, September, is still a warm month in Fond Blanc, Haiti, with an average temperature ranging between max 29.8°C (85.6°F) and min 21.3°C (70.3°F).

Temperature

The transition into September reveals an average high-temperature of a warm 29.8°C (85.6°F), mirroring a close resemblance to August. An average nighttime temperature of 21.3°C (70.3°F) is recorded during September.

Heat index

For most parts of September, the heat index is estimated at a fiery hot 36°C (96.8°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Realize that the values for the heat index are set for shaded places and light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

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

Rainfall

In Fond Blanc, in September, during 22.4 rainfall days, 135mm (5.31") of precipitation is typically accumulated. Throughout the year, in Fond Blanc, Haiti, there are 227.4 rainfall days, and 904mm (35.59") of precipitation is accumulated.

Daylight

The average length of the day in September in Fond Blanc is 12h and 14min.
On the first day of the month, sunrise is at 06:34 and sunset at 19:03. On the last day of September, sunrise is at 06:39 and sunset at 18:38 EDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

The months with the lowest UV index 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 risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.