May weather forecast
Dégrad Neuf, French Guiana

The last month of the spring, May, is also a moderately hot month in Dégrad Neuf, French Guiana, with temperature in the range of an average high of 28.6°C (83.5°F) and an average low of 24.7°C (76.5°F).

Temperature

The shift to May signals an average high-temperature of a still moderately hot 28.6°C (83.5°F), subtly varied from April's 28.5°C (83.3°F). Recording a slight drop from the daily maximum, Dégrad Neuf notes an average low temperature of 24.7°C (76.5°F) in the month of May.

Heat index

In May, the average heat index is calculated to be a torrid 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The most humid month in Dégrad Neuf is May, with an average relative humidity of 86%.

Rainfall

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

Daylight

The average length of the day in May is 12h and 20min.
On the first day of May in Dégrad Neuf, sunrise is at 06:19 and sunset at 18:36. On the last day of the month, sunrise is at 06:17 and sunset at 18:39 -03.

Sunshine

In Dégrad Neuf, the average sunshine in May is 6.9h.

UV index

The months with the lowest UV index in Dégrad Neuf, French Guiana, are January through May and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during May translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.