August weather forecast
Saint-Marc, Haiti

August sees slightly cooler temperatures compared to July and a minor decrease in sea temperature. This month records the highest sea temperature of 29.8°C (85.6°F). As for precipitation, August experiences an increase in rainfall to 97mm (3.82"). While there is a decrease in daylight hours, the ample amount of sunshine hours remain constant, allowing for sufficient time outdoors.

Temperature

The shift into August finds Saint-Marc at an average high-temperature of a still hot 30.4°C (86.7°F), closely comparable to July's conditions. Saint-Marc observes an average low-temperature of 23.3°C (73.9°F) during August.

Heat index

August's mean heat index is estimated at a very hot 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in August is 77%.

Rainfall

In Saint-Marc, during August, the rain falls for 22.3 days and regularly aggregates up to 97mm (3.82") of precipitation. In Saint-Marc, during the entire year, the rain falls for 219.6 days and collects up to 736mm (28.98") of precipitation.

Sea temperature

In August, the average sea temperature is 29.8°C (85.6°F).
Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.

Daylight

The average length of the day in August is 12h and 46min.
On the first day of August in Saint-Marc, Haiti, sunrise is at 06:27 and sunset at 19:26. On the last day of the month, sunrise is at 06:35 and sunset at 19:06 EDT.

Sunshine

July and August, with an average of 11.3h of sunshine, are months with the most sunshine.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in August leads to these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.