May weather forecast
Guenouillet, French Guiana

The last month of the spring, May, is another warm month in Guenouillet, French Guiana, with temperature in the range of an average low of 24.7°C (76.5°F) and an average high of 28.6°C (83.5°F).

Temperature

May commences with an average high-temperature of a still warm 28.6°C (83.5°F), showing little deviation from April's 28.5°C (83.3°F). Guenouillet's temperature during May nights registers a minor decrease to an average low of 24.7°C (76.5°F).

Heat index

In May, the heat index is evaluated at a fiery hot 35°C (95°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

With an average relative humidity of 86%, May is the most humid month.

Rainfall

May is the month with the most rainfall in Guenouillet. Rain falls for 28.9 days and accumulates 293mm (11.54") of precipitation.

Daylight

In May, the average length of the day in Guenouillet is 12h and 21min.
On the first day of May in Guenouillet, sunrise is at 06:17 and sunset at 18:35. On the last day of the month, sunrise is at 06:16 and sunset at 18:39 -03.

Sunshine

In May, the average sunshine is 6.9h.

UV index

The months with the lowest UV index in Guenouillet are January through May and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.