October weather forecast
Saint-Marc, Haiti

October sees further cooling in terms of temperature, sea temperature, and a decrease in rainfall to 95mm (3.74") in Saint-Marc. The daylight hours further shorten but manage to maintain significant sunshine hours. Despite the weather becoming cooler and the rainfall subsiding slightly, October still offers plenty of sunny and pleasurable weather.

Temperature

The transition from September to October sees average high-temperatures adjusting to a still moderately hot 29.3°C (84.7°F), from a not significantly different 29.8°C (85.6°F). In the month of October, Saint-Marc experiences an average low-temperature of 22.7°C (72.9°F).

Heat index

During October, the heat index is estimated at a torrid 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider the fact that direct sun exposure can influence how hot one feels, 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in October is 80%.

Rainfall

In October, the rain falls for 23.5 days. Throughout October, 95mm (3.74") of precipitation is accumulated. In Saint-Marc, Haiti, during the entire year, the rain falls for 219.6 days and collects up to 736mm (28.98") of precipitation.

Sea temperature

In October, the average sea temperature in Saint-Marc is 29.6°C (85.3°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

In Saint-Marc, Haiti, the average length of the day in October is 11h and 42min.
On the first day of the month, sunrise is at 06:41 and sunset at 18:38. On the last day of October, in Saint-Marc, sunrise is at 06:51 and sunset at 18:17 EDT.

Sunshine

In Saint-Marc, the average sunshine in October is 9.4h.

UV index

January through March, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Saint-Marc. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In October, the average maximum UV index of 6 translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! The reflection of both water and sand can increase the intensity of UV rays.