May weather forecast
Saint-Marc, Haiti

Moving into May, Saint-Marc continues to warm up, experiencing an uptick in temperature. The daylight hours peak to their highest at 13 hours, allowing plenty of time to soak up the sun. Notably, May records the highest rainfall of the year, with a steep increase to 118mm compared to April's 50mm. This heavy rainfall makes May the wettest month, yet it does not overshadow the warm temperatures and lengthy daylight hours.

Temperature

The commencement of May in Saint-Marc records an average high-temperature of a still moderately hot 29.3°C, barely varying from April's 29.1°C. Throughout the nights in May, Saint-Marc experiences an average low-temperature of 22.5°C.

Heat index

The heat index value during May is calculated to be a torrid 35°C. Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Saint-Marc, Haiti, the average relative humidity in May is 76%.

Rainfall

The month with the most rainfall in Saint-Marc is May, when the rain falls for 25.3 days and typically aggregates up to 118mm of precipitation.

Sea temperature

In Saint-Marc, in May, the average water temperature is 28°C.
Note: In any water activity, temperatures between 25°C and 29°C are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In May, the average length of the day is 13h and 2min.
On the first day of May in Saint-Marc, sunrise is at 06:22 and sunset at 19:13. On the last day of the month, sunrise is at 06:12 and sunset at 19:24 EDT.

Sunshine

In Saint-Marc, the average sunshine in May is 10.6h.

UV index

The months with the highest UV index in Saint-Marc are April through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 7 in May leads to these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Beware! Reflecting off water and sand, UV rays are much stronger.