June weather forecast
Saint-Marc, Haiti

June brings a minor dip in temperature from the peak of May, along with slight reductions in daylight and wind speed. Sea temperature, however, continues to rise. There is a considerable drop in rainfall to 81mm (3.19"), making June less wet than May. Still, with such high humidity, June remains a typically tropical month in Saint-Marc.

Temperature

The average high-temperature during June is a tropical 30.4°C (86.7°F), almost matching the conditions of the preceding month. In June, Saint-Marc experiences a temperature dip to an average of 23.4°C (74.1°F) at night.

Heat index

Throughout June, the heat index is estimated at a very hot 38°C (100.4°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in June in Saint-Marc is 76%.

Rainfall

In Saint-Marc, during June, the rain falls for 21.5 days and regularly aggregates up to 81mm (3.19") of precipitation. 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 Saint-Marc, the average seawater temperature in June is 28.7°C (83.7°F).
Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.

Daylight

June has the longest days of the year, with an average of 13h and 18min of daylight.
On the first day of June, sunrise is at 06:12 and sunset at 19:25. On the last day of the month, sunrise is at 06:16 and sunset at 19:32 EDT.

Sunshine

In Saint-Marc, the average sunshine in June is 11h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In June, the maximum UV index of 7 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Heads up! UV intensity is amplified by reflections from water and sand.