October weather forecast
Saint-Marc, Haiti

October sees further cooling in terms of temperature, sea temperature, and a decrease in rainfall to 95mm 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

Saint-Marc's average high-temperature in October sits at a still moderately hot 29.3°C, showing little difference from the previous month. An average low-temperature of 22.7°C is noted during the nights in October in Saint-Marc, Haiti.

Heat index

The average heat index in October is calculated to be a very hot 36°C. Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In October, the average relative humidity is 80%.

Rainfall

In October, the rain falls for 23.5 days. Throughout October, 95mm of precipitation is accumulated. Throughout the year, there are 219.6 rainfall days, and 736mm of precipitation is accumulated.

Sea temperature

In Saint-Marc, in October, the average water temperature is 29.6°C.
Note: Water temperature between 25°C and 29°C provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

The average length of the day in October in Saint-Marc is 11h and 42min.
On the first day of the month, sunrise is at 06:41 and sunset at 18:39. On the last day of October, sunrise is at 06:50 and sunset at 18:18 EDT.

Sunshine

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

UV index

The months with the lowest UV index are January through March, October 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 rays for ordinary individuals.
Note: A daily maximum UV index of 6 in October translates into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take heed! Reflections of sand and water make the Sun's UV rays stronger.